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Journal articles on the topic 'Drosophila Generative organs, Male'

Author: Grafiati

Published: 4 June 2021

Last updated: 2 February 2022

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1

Wainwright, S. Mark, Ben R. Hopkins, Cláudia C. Mendes, et al. "Drosophila Sex Peptide controls the assembly of lipid microcarriers in seminal fluid." Proceedings of the National Academy of Sciences 118, no. 5 (2021): e2019622118. http://dx.doi.org/10.1073/pnas.2019622118.

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Seminal fluid plays an essential role in promoting male reproductive success and modulating female physiology and behavior. In the fruit fly, Drosophila melanogaster, Sex Peptide (SP) is the best-characterized protein mediator of these effects. It is secreted from the paired male accessory glands (AGs), which, like the mammalian prostate and seminal vesicles, generate most of the seminal fluid contents. After mating, SP binds to spermatozoa and is retained in the female sperm storage organs. It is gradually released by proteolytic cleavage and induces several long-term postmating responses, in

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2

Watson, M. "On the Male Generative Organs of Hyéna crocuta." Proceedings of the Zoological Society of London 46, no. 1 (2009): 416–28. http://dx.doi.org/10.1111/j.1469-7998.1878.tb07977.x.

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Forbes, W. A. "On the Male Generative Organs of the Sumatran Rhinoceros (Ceratorhinus sumatrensis)." Transactions of the Zoological Society of London 11, no. 4 (2010): 107–9. http://dx.doi.org/10.1111/j.1096-3642.1881.tb00352.x.

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4

Ibragimova, Evelina, and Olga Manankova. "Assessment of the effect of aerotechnogenic pollution on male reproductive organs Convolvulus arvensis L." E3S Web of Conferences 285 (2021): 08002. http://dx.doi.org/10.1051/e3sconf/202128508002.

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The article presents the results of assessing the impact of airtechnogenic pollution on the male generative organs of Convolvulus arvensis L. The unfavorable effect of toxic emissions from the landfill of municipal solid waste and vehicles on the processes of microsporogenesis of the populations of Convolvulus arvensis L., which was expressed in the production of large abortive pollen, was established. It is recommended to use the male generative system of the populations of Convolvulus arvensis L. for bioindication of the quality of the state of the environment.

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Watson, M. "On the Male Generative Organs of Chlamydophorus trun-catus and Dasypus sexcinctus." Proceedings of the Zoological Society of London 46, no. 1 (2009): 673–79. http://dx.doi.org/10.1111/j.1469-7998.1878.tb08003.x.

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Mamedov, M. I., O. N. Pishnaya, N. A. Shmykova, V. A. Verba, E. A. Jos, and T. P. Suprunova. "INTERSPECIFIC HYBRIDIZATION IN THE GENUS SOLANUM L. AND ITS USE IN BREEDING." Vegetable crops of Russia, no. 2 (June 30, 2012): 10–21. http://dx.doi.org/10.18619/2072-9146-2012-2-10-21.

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The studies found that in the crosses of S. melongena with wild species, used as a male and female component, the interspecific hybrids have the traits of the generative organs of wild species: the shape and flower size, color, shape and fruit size.

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Zenkteler, M. A., E. Hauzińska, and J. Dmochowska. "Irregularities in the development of male and female gametophytes in the greenhouse carnation (Dianthus caryophpllus L. cv. William Sim.)." Acta Agrobotanica 29, no. 2 (2015): 219–40. http://dx.doi.org/10.5586/aa.1976.016.

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It was found that numerous teratological transformations of the pistils and stamens account for the complete or partial female and male sterility in <i>D. caryaphyllus</i> L. cv. William Sim. Moreover, the degeneration of generative organs was accompanied by irregularities in the development of macro-and microsporogenesis.

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8

Kamimura, Yoshitaka. "Twin intromittent organs of Drosophila for traumatic insemination." Biology Letters 3, no. 4 (2007): 401–4. http://dx.doi.org/10.1098/rsbl.2007.0192.

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In several animals, male genitalia create insemination wounds in areas outside the genital orifice of females. I report that such traumatic insemination (TI) occurs in the Drosophila bipectinata complex (Diptera: Drosophilidae) and illustrate a previously unknown evolutionary pathway for this behaviour. Flash fixation of mating pairs revealed the dual function of the paired claw-like basal processes, previously misidentified as a bifid aedeagus: (i) penetration of the female body wall near the genital orifice and (ii) sperm transfer into the genital tract through the wounds. Basal processes in

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KRAAIJEVELD, KEN, MATTHEW DENNIFF, RICHARD H. BAKER, and TRACEY CHAPMAN. "The evolution of sperm and non-sperm producing organs in male Drosophila." Biological Journal of the Linnean Society 94, no. 3 (2008): 505–12. http://dx.doi.org/10.1111/j.1095-8312.2008.01030.x.

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Náprstková, Alena, Kateřina Malínská, Lenka Záveská Drábková, et al. "Characterization of ALBA Family Expression and Localization in Arabidopsis thaliana Generative Organs." International Journal of Molecular Sciences 22, no. 4 (2021): 1652. http://dx.doi.org/10.3390/ijms22041652.

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ALBA DNA/RNA-binding proteins form an ancient family, which in eukaryotes diversified into two Rpp25-like and Rpp20-like subfamilies. In most studied model organisms, their function remains unclear, but they are usually associated with RNA metabolism, mRNA translatability and stress response. In plants, the enriched number of ALBA family members remains poorly understood. Here, we studied ALBA dynamics during reproductive development in Arabidopsis at the levels of gene expression and protein localization, both under standard conditions and following heat stress. In generative tissues, ALBA pr

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11

Mahdihassan, S. "The Five Cosmic Elements as Depicted in Indian and Chinese Cosmologies." American Journal of Chinese Medicine 17, no. 03n04 (1989): 245–52. http://dx.doi.org/10.1142/s0192415x89000346.

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Indian and Chinese Cosmologies are compared, each containing five cosmic elements. The Indian elements are Akasha, Air, Fire, Water and Earth. Akasha connotes Creative energy. As depicted it is substituted by reproduction projected as creation. Hence the male and female generative organs as Lingam-Yoni, already recognized in Hinduism as symbolizing the source of creative energy, have been depicted as such. The other four elements represent creation proper. In Chinese cosmology the full term is "Yin-Yang-Wu-Hshing." Wu-Hshing signifies Five-Cosmic elements and these are Wood, Fire, Water, Earth

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12

Hagen, Joanna F. D., Cláudia C. Mendes, Amber Blogg, et al. "tartan underlies the evolution of Drosophila male genital morphology." Proceedings of the National Academy of Sciences 116, no. 38 (2019): 19025–30. http://dx.doi.org/10.1073/pnas.1909829116.

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Male genital structures are among the most rapidly evolving morphological traits and are often the only features that can distinguish closely related species. This process is thought to be driven by sexual selection and may reinforce species separation. However, while the genetic bases of many phenotypic differences have been identified, we still lack knowledge about the genes underlying evolutionary differences in male genital organs and organ size more generally. The claspers (surstyli) are periphallic structures that play an important role in copulation in insects. Here, we show that diverg

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Hopkins, Ben R., Irem Sepil, and Stuart Wigby. "Structural variation in Drosophila melanogaster spermathecal ducts and its association with sperm competition dynamics." Royal Society Open Science 7, no. 3 (2020): 200130. http://dx.doi.org/10.1098/rsos.200130.

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The ability of female insects to retain and use sperm for days, months, or even years after mating requires specialized storage organs in the reproductive tract. In most orders, these organs include a pair of sclerotized capsules known as spermathecae. Here, we report that some Drosophila melanogaster females exhibit previously uncharacterized structures within the distal portion of the muscular duct that links a spermatheca to the uterus. We find that these ‘spermathecal duct presences' (SDPs) may form in either or both ducts and can extend from the duct into the sperm-storing capsule itself.

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Fitzpatrick, John L., C. Daisy Bridge, and Rhonda R. Snook. "Repeated evidence that the accelerated evolution of sperm is associated with their fertilization function." Proceedings of the Royal Society B: Biological Sciences 287, no. 1932 (2020): 20201286. http://dx.doi.org/10.1098/rspb.2020.1286.

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Spermatozoa are the most morphologically diverse cell type, leading to the widespread assumption that they evolve rapidly. However, there is no direct evidence that sperm evolve faster than other male traits. Such a test requires comparing male traits that operate in the same selective environment, ideally produced from the same tissue, yet vary in function. Here, we examine rates of phenotypic evolution in sperm morphology using two insect groups where males produce fertile and non-fertile sperm types ( Drosophila species from the obscura group and a subset of Lepidoptera species), where thes

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Gaines, Peter, Laurie Tompkins, Craig T. Woodard, and John R. Carlson. "quick-to-court, a Drosophila Mutant With Elevated Levels of Sexual Behavior, Is Defective in a Predicted Coiled-Coil Protein." Genetics 154, no. 4 (2000): 1627–37. http://dx.doi.org/10.1093/genetics/154.4.1627.

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Abstract Remarkably little is known about the molecular mechanisms that drive sexual behavior. We have identified a new gene, quick-to-court (qtc), whose mutations cause males to show high levels of male-male courtship. qtc males also show a novel phenotype: when placed in the presence of a virgin female, they begin courtship abnormally quickly. qtc mutations are striking in their specificity, in that many aspects of male sexual behavior are normal. We have cloned the qtc gene and found that it encodes a predicted coiled-coil protein and is expressed in the olfactory organs, central nervous sy

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Cox-Foster, D. L., C. P. Schonbaum, M. T. Murtha, and D. R. Cavener. "Developmental expression of the glucose dehydrogenase gene in Drosophila melanogaster." Genetics 124, no. 4 (1990): 873–80. http://dx.doi.org/10.1093/genetics/124.4.873.

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Abstract The Gld gene of Drosophila melanogaster is transiently expressed during every stage of development. The temporal pattern of Gld expression is highly correlated with that of ecdysteroids. Exogeneous treatment of third instar larvae with 20-hydroxyecdysone induces the accumulation of Gld mRNA in the hypoderm and anterior spiracular gland cells. During metamorphosis Gld is expressed in a variety of tissues derived from the ectoderm. In the developing reproductive tract, Gld mRNA accumulates in the female spermathecae and oviduct and in the male ejaculatory duct and ejaculatory bulb. Thes

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Keplinger, Brian L., Xinmei Guo, Jonathan Quine, Yue Feng, and Douglas R. Cavener. "Complex Organization of Promoter and Enhancer Elements Regulate the Tissue- and Developmental Stage-Specific Expression of the Drosophila melanogaster Gld Gene." Genetics 157, no. 2 (2001): 699–715. http://dx.doi.org/10.1093/genetics/157.2.699.

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Abstract The Drosophila melanogaster Gld gene has multiple and diverse developmental and physiological functions. We report herein that interactions among proximal promoter elements and a cluster of intronically located enhancers and silencers specify the complex regulation of Gld that underlies its diverse functions. Gld expression in nonreproductive tissues is largely determined by proximal promoter elements with the exception of the embryonic labium where Gld is activated by an enhancer within the first intron. A nuclear protein, GPAL, has been identified that binds the Gpal elements in the

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Maszewski, Janusz. "The effect of light factor on the development of thallus and generative organs in Chara vulgaris L." Acta Societatis Botanicorum Poloniae 49, no. 4 (2014): 397–407. http://dx.doi.org/10.5586/asbp.1980.035.

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During long-term axenic culture of Chara continuous illumination (L=24) increases mitotic activity of almost all types of cells. In such conditions only initiation of oogonia is inhibited, leading into a strong predomination of male generative organs. Prolonged darkness (L:D=1:23) exerts a mitodepressing effect. Oogonia and antheridia are especially susceptible to the reduction of the light period. Modifications of the elongating growth in various photoperiods are different in the polyploid regions of the vegetative thallus and in haploid cells of the antheridial filaments. Segments of both ax

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19

Luo, Yige, Yunwei Zhang, Jean‐Pierre Farine, Jean‐François Ferveur, Santiago Ramírez, and Artyom Kopp. "Evolution of sexually dimorphic pheromone profiles coincides with increased number of male‐specific chemosensory organs in Drosophila prolongata." Ecology and Evolution 9, no. 23 (2019): 13608–18. http://dx.doi.org/10.1002/ece3.5819.

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20

Jeu, Marjo J. De, Francesc Garriga Calderé, and Jacques L. Van Went. "Sporogenesis, gametogenesis, and progamic phase in Alstroemeria." Canadian Journal of Botany 74, no. 8 (1996): 1354–61. http://dx.doi.org/10.1139/b96-164.

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The sexual reproduction biology of Alstroemeria was studied histologically. The processes of sporogenesis and gametogenesis were described in relation to the development of the male and female organs. Comparative developmental stages in Alstroemeria take much longer than they do in tobacco. Alstroemeria has the monosporic Polygonum type of embryo sac development. Bicellular pollen is formed, which after germination on the receptive stigma immediately undergoes the mitotic division of the generative cell, thus finalizing gametogenesis. Part of the progamic phase has been studied as well. As ear

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Gosek, Aleksandra, Maria Kwiatkowska, and Robert Duszyński. "The effect of cadmium on growth of vegetative thallus and development of generative organs of Chara vulgaris L. after short time of cultivation." Acta Societatis Botanicorum Poloniae 66, no. 1 (2014): 67–72. http://dx.doi.org/10.5586/asbp.1997.010.

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The effect of cadmium ions in two different concentrations (10<sup>-8</sup>M i 10<sup>-6</sup>M) on vegetative thallus, male (antheridia) and femele (oogonia) generative organs of <em>Chara vulgaris</em> L. was investigated. After 9 days of growth in a presence of cadmium the number of lateral branches decreased and the lengths of internodes of the main axis and pleuridia became shortened. The increase in oospores volume and decrease in antheridial volume (both total and internal) after 3, 7 and 9 days of cultivation were observed. The productivity of anther

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Zaen, Anisatul Khabibah, Sukarsa Sukarsa, and Siti Samiyarsih. "Pollen Morphology Variation of Undergrowth Plants in Bantarbolang Nature Reserve, Pemalang, Central Java." BioEksakta : Jurnal Ilmiah Biologi Unsoed 1, no. 2 (2019): 104. http://dx.doi.org/10.20884/1.bioe.2019.1.2.1812.

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Undergrowth is ground cover plant which is generally in the form of herbs, grass or low shrubs. Mostly undergrowth is flowering plants. The Flower is part of plant for generative reproduction that consists of several organs that consist of pedicellus, receptacullum, perianthium, pistillum and stamen that contain pollen. Pollen is part of the flower that functions as a generative reproduction agent because it contains male gamete. Pollen has a distinctive character in each plant so that it can be used as a tool for identifying plants. Sampling location was conducted in Bantarbolang Nature Reser

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Neubaum, Deborah M., and Mariana F. Wolfner. "Mated Drosophila melanogaster Females Require a Seminal Fluid Protein, Acp36DE, to Store Sperm Efficiently." Genetics 153, no. 2 (1999): 845–57. http://dx.doi.org/10.1093/genetics/153.2.845.

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Abstract Mated females of many animal species store sperm. Sperm storage profoundly influences the number, timing, and paternity of the female’s progeny. To investigate mechanisms for sperm storage in Drosophila melanogaster, we generated and analyzed mutations in Acp36DE. Acp36DE is a male seminal fluid protein whose localization in mated females suggested a role in sperm storage. We report that male-derived Acp36DE is essential for efficient sperm storage by females. Acp36DE1 (null) mutant males produced and transferred normal amounts of sperm and seminal fluid proteins. However, mates of Ac

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Куклина, Алла Георгиевна, and Наталья Степановна Цыбулько. "Phytochemical analysis of generative bodies and leaves in Acer negundo and A. platanoides." Herald of Tver State University. Series: Biology and Ecology, no. 1(57) (November 2, 2020): 139–48. http://dx.doi.org/10.26456/vtbio136.

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Проведен фитохимический анализ цветков, плодов и листьев по содержанию биологически активных веществ на двух видах клена: инвазионном Acer negundo L. и аборигенном A. platanoides L. (Sapindaceae Juss). У 40 образцов, собранных в 5 популяциях Московского региона, найдены сумма флавоноидов, содержание аскорбиновой кислоты и суммы органических кислот по стандартным методикам Государственной фармакопеи РФ. В данном исследовании впервые обнаружено, что максимальное накопление флавоноидов (1,75-1,94 мг%) фиксируется в мужских цветках A. negundo. Содержание витамина С в цветках (до 53 мг%), плодах и

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Klíma, Miroslav, Eva Jozová, Irena Jelínková, Vratislav Kučera, Shengwu Hu, and Vladislav Čurn. "Early in vitro selection of winter oilseed rape (Brassica napus L.) plants with the fertility restorer gene for CMS Shaan 2A via non-destructive molecular analysis of microspore-derived embryos." Czech Journal of Genetics and Plant Breeding 55, No. 4 (2019): 162–65. http://dx.doi.org/10.17221/94/2018-cjgpb.

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Cotyledons of 201 microspore-derived oilseed rape (Brassica napus) embryos were analysed for the presence of the cytoplasmic male sterility Shaan 2A restorer gene using the primer pair 3F/4R. In total, 172 plants regenerated and were grown to the generative stage. Among phenotypically non-haploid flowering plants, there was a broad spectrum of different flower types from normally developed flowers to flowers with short anthers, stamens, or deformed flowers with atypically developed floral organs, often with traces of pollen. For this reason, only 115 typically fertile or sterile accessions wer

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Pi, Haiwei, Hui-Ju Wu, and Cheng-Ting Chien. "A dual function ofphyllopodinDrosophilaexternal sensory organ development: cell fate specification of sensory organ precursor and its progeny." Development 128, no. 14 (2001): 2699–710. http://dx.doi.org/10.1242/dev.128.14.2699.

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During Drosophila external sensory organ development, one sensory organ precursor (SOP) arises from a proneural cluster, and undergoes asymmetrical cell divisions to produce an external sensory (es) organ made up of different types of daughter cells. We show that phyllopod (phyl), previously identified to be essential for R7 photoreceptor differentiation, is required in two stages of es organ development: the formation of SOP cells and cell fate specification of SOP progeny. Loss-of-function mutations in phyl result in failure of SOP formation, which leads to missing bristles in adult flies. A

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Grewal, Gurman, Bahar Patlar, and Alberto Civetta. "Expression of Mst89B and CG31287 is Needed for Effective Sperm Storage and Egg Fertilization in Drosophila." Cells 10, no. 2 (2021): 289. http://dx.doi.org/10.3390/cells10020289.

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In Drosophila, male reproductive fitness can be affected by any number of processes, ranging from development of gametes, transfer to and storage of mature sperm within the female sperm storage organs, and utilization of sperm for fertilization. We have previously identified the 89B cytogenetic map position of D. melanogaster as a hub for genes that effect male paternity success when disturbed. Here, we used RNA interference to test 11 genes that are highly expressed in the testes and located within the 89B region for their role in sperm competition and male fecundity when their expression is

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Dernburg, Abby F., Douglas R. Daily, Karen J. Yook, John A. Corbin, John W. Sedat, and William Sullivan. "Selective Loss of Sperm Bearing a Compound Chromosome in the Drosophila Female." Genetics 143, no. 4 (1996): 1629–42. http://dx.doi.org/10.1093/genetics/143.4.1629.

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Abstract The Drosophila compound entire second chromosome, C(2)EN, displays paternal transmission well below Mendelian expectations (Novitski et al. 1981). Because C(2)EN stocks also show higher-than-expected rates of zygotic lethality, it was proposed that this reduced paternal inheritance might be wholly or partially due to postfertilization events. Efforts to investigate this phenomenon have been hampered because the progeny of crosses between C(2)EN-bearing individuals and those with normal karyotypes die during embryogenesis. We have circumvented this obstacle by employing fluorescence in

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Chaban, Inna A., Neonila V. Kononenko, Alexander A. Gulevich, Liliya R. Bogoutdinova, Marat R. Khaliluev, and Ekaterina N. Baranova. "Morphological Features of the Anther Development in Tomato Plants with Non-Specific Male Sterility." Biology 9, no. 2 (2020): 32. http://dx.doi.org/10.3390/biology9020032.

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The study was devoted to morphological and cytoembryological analysis of disorders in the anther and pollen development of transgenic tomato plants with a normal and abnormal phenotype, which is characterized by the impaired development of generative organs. Various abnormalities in the structural organization of anthers and microspores were revealed. Such abnormalities in microspores lead to the blocking of asymmetric cell division and, accordingly, the male gametophyte formation. Some of the non-degenerated microspores accumulate a large number of storage inclusions, forming sterile mononucl

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Marciniak and Przedniczek. "Comprehensive Insight into Gibberellin- and Jasmonate-Mediated Stamen Development." Genes 10, no. 10 (2019): 811. http://dx.doi.org/10.3390/genes10100811.

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In flowering plants, proper development of male generative organs is required for successful sexual reproduction. Stamen primordia arise in the third whorl of floral organs and subsequently differentiate into filaments and anthers. The early phase of stamen development, in which meiosis occurs, is followed by a late developmental phase, which consists of filament elongation coordinated with pollen maturation, anther dehiscence and finally viable pollen grain release. Stamen development and function are modulated by phytohormones, with a key role of gibberellins (GAs) and jasmonates (JAs). Long

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Susic-Jung, Loreen, Christina Hornbruch-Freitag, Jessica Kuckwa, Karl-Heinz Rexer, Uwe Lammel, and Renate Renkawitz-Pohl. "Multinucleated smooth muscles and mononucleated as well as multinucleated striated muscles develop during establishment of the male reproductive organs of Drosophila melanogaster." Developmental Biology 370, no. 1 (2012): 86–97. http://dx.doi.org/10.1016/j.ydbio.2012.07.022.

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Crotti, Elena, Aurora Rizzi, Bessem Chouaia, et al. "Acetic Acid Bacteria, Newly Emerging Symbionts of Insects." Applied and Environmental Microbiology 76, no. 21 (2010): 6963–70. http://dx.doi.org/10.1128/aem.01336-10.

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ABSTRACT Recent research in microbe-insect symbiosis has shown that acetic acid bacteria (AAB) establish symbiotic relationships with several insects of the orders Diptera, Hymenoptera, Hemiptera, and Homoptera, all relying on sugar-based diets, such as nectars, fruit sugars, or phloem sap. To date, the fruit flies Drosophila melanogaster and Bactrocera oleae, mosquitoes of the genera Anopheles and Aedes, the honey bee Apis mellifera, the leafhopper Scaphoideus titanus, and the mealybug Saccharicoccus sacchari have been found to be associated with the bacterial genera Acetobacter, Gluconacetob

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Lung, Oliver, Uyen Tram, Casey M. Finnerty, Marcie A. Eipper-Mains, John M. Kalb, and Mariana F. Wolfner. "The Drosophila melanogaster Seminal Fluid Protein Acp62F Is a Protease Inhibitor That Is Toxic Upon Ectopic Expression." Genetics 160, no. 1 (2002): 211–24. http://dx.doi.org/10.1093/genetics/160.1.211.

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Abstract Drosophila melanogaster seminal fluid proteins stimulate sperm storage and egg laying in the mated female but also cause a reduction in her life span. We report here that of eight Drosophila seminal fluid proteins (Acps) and one non-Acp tested, only Acp62F is toxic when ectopically expressed. Toxicity to preadult male or female Drosophila occurs upon one exposure, whereas multiple exposures are needed for toxicity to adult female flies. Of the Acp62F received by females during mating, ~10% enters the circulatory system while ~90% remains in the reproductive tract. We show that in the

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Mattei, Alexandra L., Mark L. Riccio, Frank W. Avila, and Mariana F. Wolfner. "Integrated 3D view of postmating responses by the Drosophila melanogaster female reproductive tract, obtained by micro-computed tomography scanning." Proceedings of the National Academy of Sciences 112, no. 27 (2015): 8475–80. http://dx.doi.org/10.1073/pnas.1505797112.

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Physiological changes in females during and after mating are triggered by seminal fluid components in conjunction with female-derived molecules. In insects, these changes include increased egg production, storage of sperm, and changes in muscle contraction within the reproductive tract (RT). Such postmating changes have been studied in dissected RT tissues, but understanding their coordination in vivo requires a holistic view of the tissues and their interrelationships. Here, we used high-resolution, multiscale micro-computed tomography (CT) scans to visualize and measure postmating changes in

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Kuznetsova, G. V. "Specific Features of Development of Male Generative Organs in Clones of the Siberian Stone Pine (Pinus sibirica De Tour) of Different Origins in the Krasnoyarsk Forest-Steppe." Russian Journal of Developmental Biology 35, no. 2 (2004): 62–68. http://dx.doi.org/10.1023/b:rudo.0000022346.93156.f3.

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Michaud, S., R. Marin, J. T. Westwood, and R. M. Tanguay. "Cell-specific expression and heat-shock induction of Hsps during spermatogenesis in Drosophila melanogaster." Journal of Cell Science 110, no. 17 (1997): 1989–97. http://dx.doi.org/10.1242/jcs.110.17.1989.

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The developmental and heat-shock-induced expression of two small heat-shock proteins (Hsp23 and Hsp27) was investigated during spermatogenesis in Drosophila melanogaster. Both of these Hsps were expressed in unstressed and stressed male gonads as shown by immunoblotting. Immunostaining of whole-mount organs and thin sections of testes showed that an anti-Hsp23 antibody specifically decorated cells of the somatic lineage, such as the cyst cells and the epithelial cells of the testis and of the seminal vesicle. Hsp27 was expressed in some somatic cells (cyst cells and epithelial cells of the acc

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Yan, Ying, Yukino Kobayashi, Cong Huang, et al. "Highly Efficient Temperature Inducible CRISPR-Cas9 Gene Targeting in Drosophila suzukii." International Journal of Molecular Sciences 22, no. 13 (2021): 6724. http://dx.doi.org/10.3390/ijms22136724.

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The spotted-wing Drosophila (Drosophila suzukii Matsumura) is native to eastern Asia, but has become a global threat to fruit production. In recent years, CRISPR/Cas9 targeting was established in this species allowing for functional genomic and genetic control studies. Here, we report the generation and characterization of Cas9-expressing strains of D. suzukii. Five independent transgenic lines were generated using a piggyBac construct containing the EGFP fluorescent marker gene and the Cas9 gene under the control of the D. melanogaster heat shock protein 70 promoter and 3’UTR. Heat-shock (HS)

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Qu, Zhe, William G. Bendena, Wenyan Nong, et al. "MicroRNAs regulate the sesquiterpenoid hormonal pathway in Drosophila and other arthropods." Proceedings of the Royal Society B: Biological Sciences 284, no. 1869 (2017): 20171827. http://dx.doi.org/10.1098/rspb.2017.1827.

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Arthropods comprise the majority of all described animal species, and understanding their evolution is a central question in biology. Their developmental processes are under the precise control of distinct hormonal regulators, including the sesquiterpenoids juvenile hormone (JH) and methyl farnesoate. The control of the synthesis and mode of action of these hormones played important roles in the evolution of arthropods and their adaptation to diverse habitats. However, the precise roles of non-coding RNAs, such as microRNAs (miRNAs), controlling arthropod hormonal pathways are unknown. Here, w

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Pauli, D., C. H. Tonka, A. Tissieres, and A. P. Arrigo. "Tissue-specific expression of the heat shock protein HSP27 during Drosophila melanogaster development." Journal of Cell Biology 111, no. 3 (1990): 817–28. http://dx.doi.org/10.1083/jcb.111.3.817.

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The alpha-crystallin-related heat shock (stress) protein hsp27 is expressed in absence of heat shock during Drosophila melanogaster development. Here, we describe the tissue distribution of this protein using an immunoaffinity-purified antibody. In embryos, hsp27 translated from maternal RNA is uniformly distributed, except in the yolk. During the first, second, and early third larval stages, hsp27 expression is restricted to the brain and the gonads. These tissues are characterized by a high level of proliferating cells. In late third instar larvae and early pupae, in addition to the central

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Guo, Zhaojiang, Jianying Qin, Xiaomao Zhou, and Youjun Zhang. "Insect Transcription Factors: A Landscape of Their Structures and Biological Functions in Drosophila and beyond." International Journal of Molecular Sciences 19, no. 11 (2018): 3691. http://dx.doi.org/10.3390/ijms19113691.

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Transcription factors (TFs) play essential roles in the transcriptional regulation of functional genes, and are involved in diverse physiological processes in living organisms. The fruit fly Drosophila melanogaster, a simple and easily manipulated organismal model, has been extensively applied to study the biological functions of TFs and their related transcriptional regulation mechanisms. It is noteworthy that with the development of genetic tools such as CRISPR/Cas9 and the next-generation genome sequencing techniques in recent years, identification and dissection the complex genetic regulat

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Kluza-Wieloch, Magdalena, and Joanna Szewczak. "Flowering phenology of selected wind pollinated allergenic deciduous tree species." Acta Agrobotanica 59, no. 1 (2012): 309–16. http://dx.doi.org/10.5586/aa.2006.032.

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Systematic phenological observations have been carried out in the Dendrological Garden of August Cieszkowski Agricultural University, Park Sołacki, Lasek Golęciński, Przybyszewskiego Street, for two years (2003, 2004). The selected species of deciduous trees, as <i>Betula pendula</i>, <i>Corylus avellana</i>, <i>Platanus</i> x <i>hispanica</i>. There was interdependence between the course of flowering process and weather conditions. Long and frosty winter at the turn of 2002/2003 and subzero mean temperatures in the first quarter of 2003 delayed

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Saedler, H., A. Becker, K. U. Winter, C. Kirchner, and G. Theissen. "MADS-box genes are involved in floral development and evolution." Acta Biochimica Polonica 48, no. 2 (2001): 351–58. http://dx.doi.org/10.18388/abp.2001_3920.

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MADS-box genes encode transcription factors in all eukaryotic organisms thus far studied. Plant MADS-box proteins contain a DNA-binding (M), an intervening (I), a Keratin-like (K) and a C-terminal C-domain, thus plant MADS-box proteins are of the MIKC type. In higher plants most of the well-characterized genes are involved in floral development. They control the transition from vegetative to generative growth and determine inflorescence meristem identity. They specify floral organ identity as outlined in the ABC model of floral development. Moreover, in Antirrhinum majus the MADS-box gene prod

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Schofield, R. M., J. H. Postlethwait, and H. W. Lefevre. "MeV-ion microprobe analyses of whole Drosophila suggest that zinc and copper accumulation is regulated storage not deposit excretion." Journal of Experimental Biology 200, no. 24 (1997): 3235–43. http://dx.doi.org/10.1242/jeb.200.24.3235.

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We examined Drosophila spp. using a penetrative ion microprobe technique that allows us to quantify element contents in whole organs and organisms. Comparatively non-penetrative techniques, such as electron microscopy, could not have been used to make many of these measurements because material is lost during sectioning. We found that zinc was accumulated predominantly within a single organ: in the main segments of both the anterior and posterior Malpighian tubules. In contrast to zinc, iron and copper were more generally distributed throughout the body. Zinc concentrations as high as 2.8 % of

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Chopikashvili, L. V., E. G. Pukhaeva, F. K. Rurua, Zh G. Farnieva, and S. V. Skupnevskiy. "CYTOGENETIC CONSEQUENCES OF COMPREHENSIVE IMPACT OF DRUGS AND ENVIRONMENTAL GENOTOXICANTS (ON EXAMPLE OF CEFTRIAXONE AND PB (II)) ON THE ORGANISM AND THE POSSIBILITY OF THEIR ANTIMUTAGENIC CORRECTION." Hygiene and sanitation 96, no. 5 (2019): 446–51. http://dx.doi.org/10.18821/0016-9900-2017-96-5-446-451.

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On fruit fly, Drosophila melanogaster there was studied the possibility of antimutagenic correction of factors simulating exogenous xenobiotics, potentially dangerous for humans: lead compounds (II) and the drug ceftriaxonum, and their combinations. Research on the criterion of accounting the dominant lethal mutations (according to P.Ya. Shvarzman) showed (Pb (II) 10-5 M, ceftriaxonum 0,008 g per 100 g the nutrient medium) in studied doses to give rise correspondingly the gain in the frequency of occurring mutations de novo in generative cells by 3.8 and 5.9 times (relatively to the spontaneou

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Vogt, Richard G., Matthew E. Rogers, Marie-dominique Franco, and Ming Sun. "A comparative study of odorant binding protein genes: differential expression of the PBP1-GOBP2 gene cluster inManduca sexta(Lepidoptera) and the organization of OBP genes inDrosophila melanogaster(Diptera)." Journal of Experimental Biology 205, no. 6 (2002): 719–44. http://dx.doi.org/10.1242/jeb.205.6.719.

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SUMMARYInsects discriminate odors using sensory organs called olfactory sensilla, which display a wide range of phenotypes. Sensilla express ensembles of proteins, including odorant binding proteins (OBPs), olfactory receptors (ORs) and odor degrading enzymes (ODEs); odors are thought to be transported to ORs by OBPs and subsequently degraded by ODEs. These proteins belong to multigene families. The unique combinatorial expression of specific members of each of these gene families determines, in part, the phenotype of a sensillum and what odors it can detect. Furthermore, OBPs, ORs and ODEs ar

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Kumari, Jaya, and Pradip Sinha. "Developmental expression patterns of toolkit genes in male accessory gland of Drosophila parallels those of mammalian prostate." Biology Open 10, no. 8 (2021). http://dx.doi.org/10.1242/bio.058722.

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ABSTRACT Conservation of genetic toolkits in disparate phyla may help reveal commonalities in organ designs transcending their extreme anatomical disparities. A male accessory sexual organ in mammals, the prostate, for instance, is anatomically disparate from its analogous, phylogenetically distant counterpart – the male accessory gland (MAG) – in insects like Drosophila. It has not been ascertained if the anatomically disparate Drosophila MAG shares developmental parallels with those of the mammalian prostate. Here we show that the development of Drosophila mesoderm-derived MAG entails recrui

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Panda, Pallavi, Levente Kovacs, Nikola Dzhindzhev, et al. "Tissue specific requirement of Drosophila Rcd4 for centriole duplication and ciliogenesis." Journal of Cell Biology 219, no. 8 (2020). http://dx.doi.org/10.1083/jcb.201912154.

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Rcd4 is a poorly characterized Drosophila centriole component whose mammalian counterpart, PPP1R35, is suggested to function in centriole elongation and conversion to centrosomes. Here, we show that rcd4 mutants exhibit fewer centrioles, aberrant mitoses, and reduced basal bodies in sensory organs. Rcd4 interacts with the C-terminal part of Ana3, which loads onto the procentriole during interphase, ahead of Rcd4 and before mitosis. Accordingly, depletion of Ana3 prevents Rcd4 recruitment but not vice versa. We find that neither Ana3 nor Rcd4 participates directly in the mitotic conversion of c

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"First person – Jaya Kumari." Biology Open 10, no. 8 (2021). http://dx.doi.org/10.1242/bio.058974.

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ABSTRACT First Person is a series of interviews with the first authors of a selection of papers published in Biology Open, helping early-career researchers promote themselves alongside their papers. Jaya Kumari is first author on ‘ Developmental expression patterns of toolkit genes in male accessory gland of Drosophila parallels those of mammalian prostate’, published in BiO. Jaya conducted the research described in this article while a graduate student in Pradip Sinha's lab at the Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kanpur, India. Jaya

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Takeda, Koji, Jun Yamauchi, and Takashi Adachi-Yamada. "Morphological and Developmental Traits of the Binucleation of Male Accessory Gland Cells in the Benthic Water Bug, Aphelocheirus vittatus (Hemiptera: Aphelochiridae)." Journal of Insect Science 20, no. 4 (2020). http://dx.doi.org/10.1093/jisesa/ieaa082.

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Abstract The male accessory glands (MAGs) in insects are pair(s) of internal reproductive organs that produce and secrete the plasma component of seminal fluid. In various insects, MAG size is important for male reproductive success because the fluid provides physiologically active substances and/or nutrients to females to control sperm as well as female reproductive behaviors. Although the MAG epithelial cells in most insect species are standard mononucleate cells, those in some insect taxa are binucleate due to incomplete cytokinesis (e.g., Drosophila [Fallén] [Diptera: Drosophilidae]) or ce

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Yuzawa, Tomohisa, Misato Matsuoka, Megumi Sumitani, Fugaku Aoki, Hideki Sezutsu, and Masataka G. Suzuki. "Transgenic and knockout analyses of Masculinizer and doublesex illuminated the unique functions of doublesex in germ cell sexual development of the silkworm, Bombyx mori." BMC Developmental Biology 20, no. 1 (2020). http://dx.doi.org/10.1186/s12861-020-00224-2.

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Abstract Background Masculinizer (Masc) plays a pivotal role in male sex determination in the silkworm, Bombyx mori. Masc is required for male-specific splicing of B. mori doublesex (Bmdsx) transcripts. The male isoform of Bmdsx (BmdsxM) induces male differentiation in somatic cells, while females express the female isoform of Bmdsx (BmdsxF), which promotes female differentiation in somatic cells. Our previous findings suggest that Masc could direct the differentiation of genetically female (ZW) germ cells into sperms. However, it remains unclear whether Masc directly induces spermatogenesis o

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