Academic literature on the topic 'Polyembryonie'

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Journal articles on the topic "Polyembryonie"

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Aron, Y., S. Gazit, H. Czosnek, and C. Degani. "Polyembryony in Mango (Mangifera indica L.) Is Controlled by a Single Dominant Gene." HortScience 33, no. 7 (1998): 1241–42. http://dx.doi.org/10.21273/hortsci.33.7.1241.

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The segregation pattern of individuals originating from selfing of several monoembryonic cultivars and one polyembryonic line indicated that polyembryony in mango was of genetic nature. All the plants originating from monoembryonic cultivars bore monoembryonic fruits. A one-monoembryonic to three-polyembryonic segregation pattern was observed among individuals originated from the polyembryonic line, indicating that polyembryony in mango is under the control of a single dominant gene.
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Andrade-Rodríguez, María, Angel Villegas-Monter, Guillermo Carrillo-Castañeda, and Armando García-Velázquez. "Polyembryony and identification of Volkamerian lemon zygotic and nucellar seedlings using RAPD." Pesquisa Agropecuária Brasileira 39, no. 6 (2004): 551–59. http://dx.doi.org/10.1590/s0100-204x2004000600006.

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The objectives of this work were to evaluate the frequency of polyembryony, and to identify zygotic and nucellar seedlings of Citrus volkameriana using RAPD. Twenty-five polyembryonic and eight monoembryonic seeds were cultivated in vitrofor six months. DNA from seedlings was extracted and used in combination with five RAPD primers to identify zygotic or nucellar origin of the seedlings. Environmental conditions of the year affected significantly (P<0.05) the morphological characteristics of fruitsand the number ofembryos per seed. Polyembryonic seeds ranged from 30.9%, 44.8% to 54.4% over
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Robles-González, Marciano Manuel, Silvia Heréndira Carrillo-Medrano, Miguel Ángel Manzanilla-Ramirez, and Víctor Manuel Medina-Urrutia. "Methods for estimating the level of polyembryony in Mexican lime and Italian lemon seeds." Revista Chapingo Serie Horticultura 30, no. 2 (2024): 55–69. http://dx.doi.org/10.5154/r.rchsh.2022.10.013.

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Polyembryony is a common trait in most citrus varieties. The level of polyembryony has the potential to be used as a descriptor in the characterization of varieties or to select parents in conventional hybridization work. The aim of this research was to find an efficient methodology to detect, count and estimate the potential number of embryos per seed, the percentage of polyembryonic seeds and the level of polyembryony in the varieties ‘Colimex’ and ‘Lise’ of Mexican lime, and the variety ‘Rosenberger’ of true lemon. Four methodologies were evaluated: 1) direct counting of embryos in mature s
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Walingkas, Walingkas, Pemmy Tumewu, and Meity Rosadelly Rantung. "Physiological Qualities Of Polyembryony Seeds And Zigotes Of Nangka (Artocarpus integra (Thumb) On Seed Production." Jurnal Agroekoteknologi Terapan 4, no. 2 (2023): 434–40. http://dx.doi.org/10.35791/jat.v4i2.52485.

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The aim of this research is to determine the polyembryonic properties of jackfruit seeds, whether the resulting polyembryonic seeds can be used as a contributor to seed production, to determine the number of seeds produced from embryonic characteristics and to determine the relationship between polyembryony and seedling growth. The research used a Randomized Block Design (RAK) with 5 treatments each: whole jackfruit zygotic seeds 1 (Z1), whole jackfruit polyembryony seeds 2 (PU2), whole jackfruit polyembryony seeds 3 (PU3), split jackfruit polyembryony seeds 2 (PB2) and polyembryonic seeds of
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Ochoa, Elisa del Carmen Martínez, María Andrade-Rodríguez, Mario Rocandio Rodríguez, and Angel Villegas Monter. "Identification of zygotic and nucellar seedlings in polyembryonic mango cultivars." Pesquisa Agropecuária Brasileira 47, no. 11 (2012): 1629–36. http://dx.doi.org/10.1590/s0100-204x2012001100010.

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The objective of this work was to evaluate the occurrence of polyembryony in the mango cultivars Manila and Ataulfo, and to determine whether seedlings cultured in vitro are zygotic or nucelar. Percentage of polyembryony was calculated and the number of embryos in 100 seeds of each cultivar was recorded. 'Manila' exhibited 97% polyembryony with 3.4 embryos per seed, while 'Ataulfo' had 95% polyembryony with 3.2 embryos per seed. Later, 20 seeds of each cultivar were established in vitro, and it was analyzed those in which all embryos germinated (12 seeds from 'Manila' and 7 from 'Ataulfo'). DN
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Cruz-Requena, M., C. N. Aguilar-González, J. Espinoza-Velázquez, M. H. Reyes-Valdés, and R. Rodríguez-Herrera. "AFLPs loci associated with polyembryonic maize using selective genotyping analysis." Israel Journal of Plant Sciences 61, no. 1-4 (2013): 46–50. http://dx.doi.org/10.1080/07929978.2014.950045.

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Polyembryony is a trait widely distributed in nature which occurs in different plant species including maize. This trait has been studied at the genetic level with various molecular markers. In the present study we analyzed two monoembryonic and polyembryonic maize groups, derived from the F2population of a cross between plants from a high polyembryonic brachytic (BAP) population and a monoembryonic commercial variety (PUMA). Polymorphism was analyzed among and between these two F2maize groups with AFLPs (amplified fragment length polymorphisms). A total of 16 polymorphic bands were obtained,
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HUYGHE, Christian. "La polyembryonie haploïdediploïde chez le lin (Linum usitatissimum L.). Etude cytologique et physiologique." Agronomie 7, no. 8 (1987): 567–73. http://dx.doi.org/10.1051/agro:19870803.

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Catalano, Chiara, Giuseppina Las Casas, Alessio Giuffrida, et al. "Reproductive Biology Factors Hampering Lemon [Citrus limon (L.) Burm. f.] Genetic Improvement." Agriculture 12, no. 12 (2022): 2020. http://dx.doi.org/10.3390/agriculture12122020.

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Background: Floral sterility and nucellar embryony are peculiar traits of several Citrus species and represent an obstacle to traditional breeding. Morphological sterility mainly results in pistil abortion and anther atrophy, while polyembryony is due to a mechanism known as sporophytic apomixis, which consists of the presence of embryos in the seed generated from the nucellar (maternal) tissue alongside the zygotic embryo (sexual origin). Considering the growing interest in lemon [Citrus limon (L.) Burm. f.] breeding, and the lack of information on floral sterility and the polyembryony trait
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Baptista, Julcinara Oliveira, José Carlos Lopes, Edilson Romais Schmildt, Caroline Palacio De Araujo, and Rodrigo Sobreira Alexandre. "Grafting methods and use of fasteners in monoembryonic, polyembryonic, and multi-stemmed jaboticaba (Plinia jaboticaba (Vell) Berg) seedlings." Comunicata Scientiae 11 (March 13, 2020): e3158. http://dx.doi.org/10.14295/cs.v11i0.3158.

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Jaboticaba is a native fruit from Brazil, appreciated for its sweet taste and organoleptic characteristics. The propagation of this fruit species occurs exclusively through seeds, which present high germination rates, although with a long period of juvenility, a fact that favors advances in studies aiming at an early fruiting. This research aimed to study a more adequate and rapid grafting method for the jaboticaba cv. Sabará. The experimental design was in randomized blocks, with 12 treatments consisting of combinations using three types of seedlings (monoembryonic, polyembryonic, and multi-s
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Agapito-Tenfen, Sarah Zanon, Neusa Steiner, Miguel Pedro Guerra, and Rubens Onofre Nodari. "Patterns of polyembryony and frequency of surviving multiple embryos of the Brazilian pine Araucaria angustifolia." Australian Journal of Botany 59, no. 8 (2011): 749. http://dx.doi.org/10.1071/bt11195.

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The development of polyembryony is a common reproductive strategy in conifers. Multiple embryos are observed during early seed developmental stages. However, upon seed maturation, only the dominant embryo survives, with few exceptions. Although programmed cell death has been reported as the major mechanism responsible for elimination of subordinate embryos, the genetics of surviving embryos and the probabilities of survival remain unclear. The aim of this study is to determine patterns of polyembryony and survival frequency in Araucaria angustifolia (Bert) O. Ktze. Thus, we investigate the mor
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Dissertations / Theses on the topic "Polyembryonie"

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Jenkins, Helen L. "Polyembryony, brood chamber development and gender specialisation in cyclostome bryozoans." Thesis, Bangor University, 2013. https://research.bangor.ac.uk/portal/en/theses/polyembryony-brood-chamber-development-and-gender-specialisation-in-cyclostome-bryozoans(1ae0346f-b932-4a2f-8169-a81b6e8bde4b).html.

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Investigations were conducted into aspects of the reproductive biology of the Cyclostomata, a relatively understudied ancient order of bryozoans. Evidence for polyembryony (cloning of sexually produced embryos) in all three major cyclostome clades was obtained using a molecular genetic approach (Chapter 2) confirming historical inferences based on microscopy and supporting the widely held view that this apparently paradoxical reproductive mode characterises the order. The paradoxical nature of polyembryony in the case of cyclostomes was investigated. Genotyping provided evidence for the prolon
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Caetano, Ana Paula de Souza 1985. "Apomixia e reprodução sexuada em especies de Miconia Ruiz & Pavon, Melastomataceae." [s.n.], 2010. http://repositorio.unicamp.br/jspui/handle/REPOSIP/315568.

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Orientadores: Sandra Maria Carmello-Guerreiro, Simone de Padua Teixeira<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Biologia<br>Made available in DSpace on 2018-08-15T16:53:33Z (GMT). No. of bitstreams: 1 Caetano_AnaPauladeSouza_M.pdf: 5552395 bytes, checksum: ddd2d3795d5da107ef405fe68e7a02a3 (MD5) Previous issue date: 2010<br>Resumo: Em Miconia fallax, uma espécie apomítica, e Miconia pepericarpa, uma espécie sexuada, os processos de esporogênese e gametogênese apresentam diversas características semelhantes, muitas delas compartilhadas com outros membros da
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Arruda, Natália. "Avaliação da morfologia interna de sementes de citrumelo \'Swingle\' por meio de raios X." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/11/11136/tde-04082017-154029/.

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O teste de raios X é um teste rápido, simples, não destrutivo e de alta precisão, que possibilita examinar com detalhes, a morfologia interna da semente, identificar áreas danificadas, sua localização e tipos de danos. Uma das abordagens atuais da pesquisa sobre análise de imagens de sementes radiografadas é verificar até que ponto a relação entre o grau de desenvolvimento embrionário e o espaço disponível na cavidade interna da semente está associada ao desempenho da semente. Na literatura há diversos trabalhos com resultados promissores para diferentes espécies; porém, para sementes de citro
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Firetti-Leggieri, Fabiana. "Biossistematica das especies do complexo Anemopaegma arvense (Vell.) Stellf. ex de Souza (Bignoniaceae, Bignonieae) = aspectos anatomicos, citologicos, moleculares, morfologicos e reprodutivos." [s.n.], 2009. http://repositorio.unicamp.br/jspui/handle/REPOSIP/315193.

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Orientadores: João Semir, Lucia Garcez Lohmann<br>Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Biologia<br>Made available in DSpace on 2018-08-15T14:46:18Z (GMT). No. of bitstreams: 1 Firetti-Leggieri_Fabiana_D.pdf: 148843515 bytes, checksum: bfb6fa893bb9997ed92b1d321acb5e7a (MD5) Previous issue date: 2009<br>Resumo: O complexo Anemopaegma arvense é constituído por espécies e variedades de difícil delimitação. As opiniões dos taxonomistas, baseadas em caracteres morfológicos, são controversas em considerálas uma única espécie altamente polimórfica ou separá-las. Com o i
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Mendes-rodrigues, Clesnan. "Ecologia de espécies poliembriônicas com ênfase no Bioma Cerrado." Universidade Federal de Uberlândia, 2010. https://repositorio.ufu.br/handle/123456789/13262.

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Fundação de Amparo a Pesquisa do Estado de Minas Gerais<br>The of more than an embryo per seed, known as polyembryony, and the asexual reproduction via seed, known as apomixis, are usually associated. The records and importance of these events have increased in the last decades both for the Angiosperms as a whole and for specific biomes, as the Cerrado, where sexual reproduction is predominant. Despite these records, information on the ecology of polyembryonic seeds is still lacking. In this scenario, we aimed to confirm polyembryony as an indicator of apomixes in woody species of Cerrado and,
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Buru, Joshua Comrade. "Comparative biology of two forms of an invasive vine, Dolichandra unguis-cati (L.) Lohmann (Bignoniaceae): implications for weed spread and biocontrol." Thesis, Queensland University of Technology, 2016. https://eprints.qut.edu.au/102084/1/Joshua%20Comrade_Buru_Thesis.pdf.

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This thesis is a comparative study of two distinct forms ('long pod' and 'short pod') of an invasive vine, cat’s claw creeper. The two forms have differing prevalence rates in Australia. The thesis examines important plant traits that could explain this variation in prevalence between the forms. The thesis covers seed biology, anatomical and growth traits, together with physiological traits in response to two levels of light, water and nutrients resources. In addition, the study assesses preferences of two bio-agents (insects) against the two forms of cat’s claw creeper to ascertain bio-contro
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Mendes, Mariana Gonçalves. "Variabilidade genética e morfológica em populações de handroanthus ochraceus (bignoniaceae) com sistemas reprodutivos e ploidias distintos." Universidade Federal de Uberlândia, 2013. https://repositorio.ufu.br/handle/123456789/15867.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>Apomixis is an asexual mechanism of reproduction through seed formation with clonal embryos. The high rate of polyembryonic seeds is usually an indicative for the occurrence of sporophytic apomixis and in Bignoniaceae the expression of sporophytic apomixis seems to be related to polyploidy. Handroanthus ochraceus and H. chrysotrichus are two tree species of Bignoniaceae that area morphologically related, which usually leads to identification problems. Handroanthus ochraceus has self-incompatible non-apomictic and monoembryonic popu
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Gordon, Shira D. "Polyembryonic proliferation from 2 to 2000 /." 2006. http://purl.galileo.usg.edu/uga%5Fetd/gordon%5Fshira%5Fd%5F200605%5Fms.

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Grbić, Miodrag. "Embryonic development of the polyembryonic wasp Copidosoma floridanum." 1995. http://catalog.hathitrust.org/api/volumes/oclc/34686651.html.

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Thesis (Ph. D.)--University of Wisconsin--Madison, 1995.<br>Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 148-166).
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Baehrecke, Eric Harald. "The role of hormones during polyembryonic development of Copidosoma floridanum." 1992. http://catalog.hathitrust.org/api/volumes/oclc/28726518.html.

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Thesis (Ph. D.)--University of Wisconsin--Madison, 1992.<br>Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 152-170).
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Books on the topic "Polyembryonie"

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Ganong, William F. Upon polyembryony and its morphology in Opuntia vulgaris. University of Chicago Press, 1986.

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F, Ganong William. Upon polyembryony and its morphology in Opuntia vulgaris. University of Chicago Press, 1986.

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Iwabuchi, Kikuo. Polyembryonic Insects. Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-15-0958-2.

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Iwabuchi, Kikuo. Polyembryonic Insects: An Extreme Clonal Reproductive Strategy. Springer Singapore Pte. Limited, 2021.

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Iwabuchi, Kikuo. Polyembryonic Insects: An Extreme Clonal Reproductive Strategy. Springer, 2020.

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Bishop, Dean Stewart. Polyembryony and Breeding Behavior of Polyhaploid Twins in Alfalfa. Creative Media Partners, LLC, 2021.

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Book chapters on the topic "Polyembryonie"

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Iwabuchi, Kikuo. "Overview of Polyembryony." In Polyembryonic Insects. Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-15-0958-2_1.

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Iwabuchi, Kikuo. "Polyembryony in Encyrtid Parasitoids." In Polyembryonic Insects. Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-15-0958-2_2.

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Iwabuchi, Kikuo. "Host–Polyembryonic Parasitoid Interactions." In Polyembryonic Insects. Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-15-0958-2_3.

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Iwabuchi, Kikuo. "Sociality in Polyembryonic Parasitoids." In Polyembryonic Insects. Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-15-0958-2_4.

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Iwabuchi, Kikuo. "Ecology and Evolution of Polyembryony." In Polyembryonic Insects. Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-15-0958-2_5.

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Frank, J. Howard, J. Howard Frank, Michael C. Thomas, et al. "Polyembryony." In Encyclopedia of Entomology. Springer Netherlands, 2008. http://dx.doi.org/10.1007/978-1-4020-6359-6_3042.

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Pandey, Arun K. "Polyembryony." In Reproductive Biology of Angiosperms. CRC Press, 2022. http://dx.doi.org/10.1201/9781003260097-13.

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Harte, Cornelia, and Renata Sniezko. "Polyembryony in Oenothera." In Sexual Reproduction in Higher Plants. Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/978-3-642-73271-3_66.

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Modliński, J. A., and J. P. Ozil. "Experimental Polyembryony in Mammals." In Future Aspects in Human In Vitro Fertilization. Springer Berlin Heidelberg, 1987. http://dx.doi.org/10.1007/978-3-642-71412-2_31.

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Strand, Michael R., and Miodrag Grbic’. "The Life History and Development of Polyembryonic Parasitoids." In Parasites and Pathogens. Springer US, 1997. http://dx.doi.org/10.1007/978-1-4615-5983-2_2.

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Conference papers on the topic "Polyembryonie"

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Sakamoto, Takuma. "Transcriptome analysis of a polyembryonic parasitoidCopidosoma floridanum." In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.114289.

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"Occurrence and variability of polyembryonic seedlings in triticale-wheat hybrid line." In Plant Genetics, Genomics, Bioinformatics, and Biotechnology. Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, 2019. http://dx.doi.org/10.18699/plantgen2019-111.

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Iordosopol, Elena. "Specia nouă de encyrtid parazit al păduchelui pufos (Pseudococcus sp.) la prun în Republica Moldova." In VIIIth International Scientific Conference “Genetics, Physiology and Plant Breeding”. Institute of Genetics, Physiology and Plant Protection, 2024. https://doi.org/10.53040/gppb8.2024.104.

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The paper presents the results of the study of the regulatory complex of the mealybugs species of the genus Pseudococcus, which overwinters in the trap belts of the plum crop. It was established that in the adult stage it is parasitized by 5 species of parasites, among them 3 encyrtids, 1 megaspilid and 1 sygniphorid. The highest number of females parasitized by Stemmatosteres bochemicus was recorded in the belts influenced by the apple culture adjacent to the plum. The sex ratio (♀:♂) of the polyembryonic parasite population analyzed was 2:1.
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Hu, Jian. "Glycoprotein hemomucin protects embryos of polyembryonic parasitoidMacrocentrus cingulumto evade the encapsulation of host hemocytes." In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.94066.

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Reports on the topic "Polyembryonie"

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Sherman, A., D. N. Kuhn, Y. Cohen, R. Ophir, and R. Goenaga. Exploring the polyembryonic seed trait in mango as a basis for a biotechnology platform for fruit tree crops. United States-Israel Binational Agricultural Research and Development Fund, 2021. http://dx.doi.org/10.32747/2021.8134176.bard.

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Mango is one of the most important fruit crops. However, the biology of this fruit tree is under studied. The lack of genetic and genomic resources has limited progress in mango research and breeding. Several research groups have recently started developing genomic tools for mango by creating transcriptome and genomic data. Sexual reproduction in plants is the main pathway for the creation of new genetic combinations. In modern agriculture, breeders exploit the genetic diversity generated through sexual reproduction to develop elite cultivars; however, these cultivars require genetic stabiliza
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