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Journal articles on the topic 'Reproductive characters'

Author: Grafiati

Published: 4 June 2025

Last updated: 14 July 2025

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1

Satish, Martha*. "Reproductive Characters in Camels." Science World a monthly e magazine 3, no. 2 (2023): 212–15. https://doi.org/10.5281/zenodo.7676313.

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Camels have peculiar reproductive characters when compared to bovines and equines. Camels are multipurpose livestock species uniquely adapted to harsh arid and semi-arid areas that can be used for meat, milk, wool, and hide production and transportation. In desert areas, they serve both as a food source and as a medium of transport (Ship of the Desert).

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2

Maletskii, S., S. Yudanova, and E. Maletskaya. "The reproductive characters, phyllotaxis of the floral shoots and morphogenesis in sugar beet (Beta vulgaris L.)." Bulletin of Science and Practice., no. 2 (February 15, 2017): 63–77. https://doi.org/10.5281/zenodo.291829.

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The variability of some reproductive characters in sugar beet, to be more exact the phyllotaxis characters was investigated. Flowers (and fruits) on the sugar beet floral shoot are arranged spirally. One of the phyllotaxis characters is a distribution of the number of spirals in the shoot. This character is subject to the normal distribution law. The same kind of distribution is typical for other reproductive characteristics in sugar beet (number of fruits on the shoot, length of shoot).The spiral number per length unit on the floral shoot are also obeying to the normal distribution and varyin

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3

Jansen, Martin, Martin Plath, Francisco Brusquetti, and Michael Joseph Ryan. "Asymmetric frequency shift in advertisement calls of sympatric frogs." Amphibia-Reptilia 37, no. 2 (2016): 137–52. http://dx.doi.org/10.1163/15685381-00003038.

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Character displacement is commonly observed when species occur in secondary contact zones and traits related to resource competition or reproduction diverge in sympatry. However, few studies have considered the factors determining and delimiting the direction of character evolution in this context. We studied displacement in advertisement calls in two species of hylid frogs from allopatric and sympatric populations, both of which call with similar frequencies but differ substantially in temporal parameters. We found asymmetrical character displacement in sympatry, as only Scinax madeirae (but

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4

Carter, Anthony M., and Andrea Mess. "Evolution of the placenta and associated reproductive characters in bats." Journal of Experimental Zoology Part B: Molecular and Developmental Evolution 310B, no. 5 (2008): 428–49. https://doi.org/10.5281/zenodo.13529625.

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(Uploaded by Plazi for the Bat Literature Project) Abstract Recent advances in molecular phylogenetics indicate that the order Chiroptera is monophyletic and that one of four lineages of microbats (Rhinolophoidea) shares a common origin with megabats. Against this background we undertook a comprehensive analysis of placental evolution in bats. We defined a range of characters and character states associated with female reproduction, early development, placentation and the neonate. These were then mapped on a pre‐existing hypothesis of bat relationships that represents the current view from mol

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5

Carter, Anthony M., and Andrea Mess. "Evolution of the placenta and associated reproductive characters in bats." Journal of Experimental Zoology Part B: Molecular and Developmental Evolution 310B, no. 5 (2008): 428–49. https://doi.org/10.5281/zenodo.13529625.

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(Uploaded by Plazi for the Bat Literature Project) Abstract Recent advances in molecular phylogenetics indicate that the order Chiroptera is monophyletic and that one of four lineages of microbats (Rhinolophoidea) shares a common origin with megabats. Against this background we undertook a comprehensive analysis of placental evolution in bats. We defined a range of characters and character states associated with female reproduction, early development, placentation and the neonate. These were then mapped on a pre‐existing hypothesis of bat relationships that represents the current view from mol

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6

Carter, Anthony M., and Andrea Mess. "Evolution of the placenta and associated reproductive characters in bats." Journal of Experimental Zoology Part B: Molecular and Developmental Evolution 310B, no. 5 (2008): 428–49. https://doi.org/10.5281/zenodo.13529625.

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(Uploaded by Plazi for the Bat Literature Project) Abstract Recent advances in molecular phylogenetics indicate that the order Chiroptera is monophyletic and that one of four lineages of microbats (Rhinolophoidea) shares a common origin with megabats. Against this background we undertook a comprehensive analysis of placental evolution in bats. We defined a range of characters and character states associated with female reproduction, early development, placentation and the neonate. These were then mapped on a pre‐existing hypothesis of bat relationships that represents the current view from mol

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7

Carter, Anthony M., and Andrea Mess. "Evolution of the placenta and associated reproductive characters in bats." Journal of Experimental Zoology Part B: Molecular and Developmental Evolution 310B, no. 5 (2008): 428–49. https://doi.org/10.5281/zenodo.13529625.

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(Uploaded by Plazi for the Bat Literature Project) Abstract Recent advances in molecular phylogenetics indicate that the order Chiroptera is monophyletic and that one of four lineages of microbats (Rhinolophoidea) shares a common origin with megabats. Against this background we undertook a comprehensive analysis of placental evolution in bats. We defined a range of characters and character states associated with female reproduction, early development, placentation and the neonate. These were then mapped on a pre‐existing hypothesis of bat relationships that represents the current view from mol

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8

Cheplick, G. P. "Nutrient availability, dimorphic seed production, and reproductive allocation in the annual grass Amphicarpum purshii." Canadian Journal of Botany 67, no. 8 (1989): 2514–21. http://dx.doi.org/10.1139/b89-321.

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The effect of nutrient addition on dimorphic seed reproduction and biomass allocation was investigated in amphicarpic peanut grass (Amphicarpum purshii Kunth). This annual, which grows in disturbed habitats on the Coastal Plain of eastern North America, produces self-fertilizing cleistogamous spikelets under ground and potentially outcrossing chasmogamous spikelets above ground. For each of three sibling families raised in the greenhouse from aerial seeds, 11 plants were fertilized twice during the growth period while 11 plants received no fertilizer. Total spikelet output and seed weight incr

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9

Izmaiłow, Romana. "Reproductive strategy in the Ranunculus auricomus complex (ranunculaceae)." Acta Societatis Botanicorum Poloniae 65, no. 1-2 (2014): 167–70. http://dx.doi.org/10.5586/asbp.1996.029.

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A preliminary study of reproductive strategy was carried out on plants representing four cytotypes of the <em>Ranunculus auricomus</em> complex. Diploid plants reproduce sexually, triploids, tetraploids and hexaploids have an apomictic mode of reproduction (apospory combined with pseudogamy). Some morphological characters of the plants connected with reproduction were analyzed at various phases and compared in two successive seasons. The following characters were estimated at the individual level: number of ovules and primary pollen grains per plant, pollen viability, pollen-ovule

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10

Sládek, Libor, Vladimír Mikule, and Kateřina Wasserbauerová. "Influences Which Affect Reproductive Characters of Sows in Studied Reproductive Breeding." Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis 64, no. 5 (2016): 1653–59. http://dx.doi.org/10.11118/actaun201664051653.

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The aim of the study was to evaluate influences which affect reproductive characters of sows in chosen reproductive breeding. These reproductive traits of sows were studied: number of all, live born and weaned piglets, losses from live born piglets till weaning. These influences which affect reproductive characters were studied: order of litter, number of piglets in litter, birth weight of piglets and influence of sex on birth weight of piglets. An average number of all born piglets per litter it was 11.74 animals. From that 11.33 live born piglets per sow and litter. 10.15 piglets were weaned

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11

Donoghue, Michael J., Charles D. Bell, and Richard C. Winkworth. "The Evolution of Reproductive Characters in Dipsacales." International Journal of Plant Sciences 164, S5 (2003): S453—S464. http://dx.doi.org/10.1086/376874.

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12

Tremblay, Raymond L., James D. Ackerman, and Maria-Eglée Pérez. "Riding across the selection landscape: fitness consequences of annual variation in reproductive characteristics." Philosophical Transactions of the Royal Society B: Biological Sciences 365, no. 1539 (2010): 491–98. http://dx.doi.org/10.1098/rstb.2009.0239.

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Evolutionary models estimating phenotypic selection in character size usually assume that the character is invariant across reproductive bouts. We show that variation in the size of reproductive traits may be large over multiple events and can influence fitness in organisms where these traits are produced anew each season. With data from populations of two orchid species, Caladenia valida and Tolumnia variegata , we used Bayesian statistics to investigate the effect on the distribution in fitness of individuals when the fitness landscape is not flat and when characters vary across reproductive

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13

Z.S., Gorlacheva, and Kustova O.K. "Variability of the morphological characters of Salvia officinalis L. under introduction." Plant Introduction 58 (August 1, 2013): 63–68. https://doi.org/10.5281/zenodo.1492826.

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Research of variability of the morphological characters of <em>Salvia officinalis</em> L. showed the high level of variability of vegetative characters, low variability of generative characters and reproductive indexes.

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14

Gallacher, D. J. "Optimised descriptors recommended for Australian sugarcane germplasm (Saccharum spp. hybrid)." Australian Journal of Agricultural Research 48, no. 6 (1997): 775. http://dx.doi.org/10.1071/a96106.

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No internationally accepted system of describing sugarcane cultivars has ever emerged, despite repeated attempts. An internationally adopted descriptor set would enable cultivar label maintenance both within and among research stations, and enable an international measure of genetic distance. An optimum morphological descriptor set was formulated after an exhaustive study of characters. Characters were selected using both a monothetic and a polythetic discriminant analysis, and from a study of character variance components. Twenty-nine vegetative characters are recommended for adoption and gen

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Grigoruk, O. G., A. F. Lazarev, L. M. Bazulina, and M. N. Chechulin. "Carcinomatous pleuritis in women with malignant tumors of reproductive system: potentialities of a cytological technigue." Bulletin of Siberian Medicine 8, no. 4 (2009): 22–27. http://dx.doi.org/10.20538/1682-0363-2009-4-22-27.

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А cytological technique to determine the character of pleura pathology with malignant tumors among 297 women was used. The features of malignant cells of tumors of reproductive system in pleurisies with breast carcinoma (119), ovarian (73) and endometrial carcinoma (4) were studied. A light microscopy, also immunocytochemical technique with a set of 2—14 antibodies in difficult cases for diagnostics was used. With the dissemination of breast carcinoma on pleura, the specific pathogonomic characters in 78.2 % of cases are found. With ovarian carcinoma according to the certain cytological featur

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16

Rao, A., A. Tikader, S. Ravindran, and P. Mukherjee. "Sexual diversity in Mulberry (Morus spp.) germplasm and its utilization." Indian Journal of Forestry 23, no. 3 (2000): 312–18. https://doi.org/10.54207/bsmps1000-2000-7xa39x.

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The variability in different reproductive characters in 326 mulberry germplasm accessions (Exotic-114 and Indienous-212) from diverse geographical and genetic origin was studied. Sex expression revealed that 223 (68.40%) are dioecious and 103 (31.60%) monoecious. Among dioecious 192 (58.90%) bear pistillate (female) and 31 (9.51%) staminate (male) inflorescence. Analysis of variance showed highly significant difference between accessions in both male and female reproductive characters studied. In the male reproductive characters highest variability was observed in peduncle length and least in

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17

Naretto, Sergio, Cecilia S. Blengini, Gabriela Cardozo, and Margarita Chiaraviglio. "Pre- and Postcopulatory Traits ofSalvatorMale Lizards in Allopatry and Sympatry." Scientifica 2016 (2016): 1–9. http://dx.doi.org/10.1155/2016/8176267.

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The reproductive traits of males are under influence of sexual pressures before and after copulation. The strength of sexual selection varies across populations because they undergo varying competition for mating opportunities. Besides intraspecific pressures, individuals seem to be subjected to pressures driven by interspecific interactions in sympatry. Lizards may vary their reproductive strategies through varying sexual characters, body size, gonadal investment, and sperm traits. We evaluated the reproductive traits, involved in pre- and postcopulatory competition, in allopatric and sympatr

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18

Cozzolino, Salvatore, Giovanni Scopece, Pierluigi Cortis, Maria Rosaria Barone Lumaga, Donata Cafasso, and Manfred Ayasse. "Reproductive character displacement allows two sexually deceptive orchids to coexist and attract the same specific pollinator." Evolutionary Ecology 36, no. 2 (2022): 217–32. http://dx.doi.org/10.1007/s10682-021-10149-2.

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AbstractAn increased divergence in characters between species in secondary contact can be shaped by selection against competition for a common resource (ecological character displacement, ECD) or against maladapted hybridization (reproductive character displacement, RCD). These selective pressures can act between incipient species (reinforcement) or well-separated species that already completed the speciation process, but that can still hybridize and produce maladapted hybrids. Here, we investigated two well-separated sexually deceptive orchid species that, unusually, share their specific poll

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19

Gottsberger, Gerhard. "Evolutionary steps in the reproductive biology of Annonaceae." Revista Brasileira de Fruticultura 36, spe1 (2014): 32–43. http://dx.doi.org/10.1590/s0100-29452014000500004.

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Flowers of Annonaceae are characterized by fleshy petals, many stamens with hard connective shields and numerous carpels with sessile stigmas often covered by sticky secretions. The petals of many representatives during anthesis form a closed pollination chamber. Protogynous dichogamy with strong scent emissions especially during the pistillate stage is a character of nearly all species. Scent emissions can be enhanced by thermogenesis. The prevailing reproductive system in the family seems to be self-compatibility. The basal genus Anaxagorea besides exhibiting several ancestral morphological

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20

Lampert, Vinicius Renner, Marco Aurélio Azevedo, and Clarice Bernhardt Fialho. "Reproductive biology of Bryconamericus iheringii (Ostariophysi: Characidae) from rio Vacacaí, RS, Brazil." Neotropical Ichthyology 2, no. 4 (2004): 209–15. http://dx.doi.org/10.1590/s1679-62252004000400003.

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In this paper we describe some aspects of the reproduction and development of secondary sexual characters of Bryconamericus iheringii, based on the analysis of 194 females and 210 males collected monthly in the rio Vacacaí (30º21'34"S and 54º18'48"W), from April 2001 to March 2002. The reproductive period occurred from September to January (spring and summer in the Southern Hemisphere), as described for other characids of the same area. The absolute fecundity mean was 933.71 ± 303.10 oocytes, and the relative fecundity mean was 0.36 ± 0.08 oocytes per mg of total weight, being the species a mu

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21

Utami, Putri, Muhammad Zainul Hanif, Aulia Puspita Anugra Yekti, Joko Riyanto, Chusnul Hanim, and Trinil Susilawati. "The relationship of estrus character before double dose artificial insemination in Limousin Crossbred cow." E3S Web of Conferences 335 (2022): 00031. http://dx.doi.org/10.1051/e3sconf/202233500031.

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Ongole cattle in smallholder farms on Java, Indonesia, have been crossed with Limousin, which is not controlled repeatedly. The character of estrus affects the success of Artificial Insemination. This study aimed to determine the relationship between estrus characters before double dose artificial insemination using frozen semen sexing. The research was conducted in Senggreng Village, Sumber Pucung District, Malang Regency. The material was 45 head of Limousin crossbred cow inseminated using sexing semen produced by the Singosari National Artificial Insemination Center (SNAIC). The sexed semen

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22

Johri, B. M. "Evolutionary trends in the reproductive biology of angiosperms." Journal of Palaeosciences 41 (December 31, 1992): 176–81. http://dx.doi.org/10.54991/jop.1992.1119.

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Which embryologic characters are primitive, and which are advanced, has long been a controversial issue? The comparative embryology of angiosperms and gymnosperms does not provide any useful clue. Single embryological characters are not as useful for phylogenetic and evolutionary considerations as are a group of characters. Moreover, some of the characters may be merely adaptive without any evolutionary significance. The numerous variations cause further complication. This article is devoted to (a) distribution and phylogeny of anther tapetum, (b) affinities of megagametophyte, (c) can t

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Nikolić, Danijela, Milena Veličković, Irena Raca, Gocić Dragana Jenačković, Marina Jušković, and Vladimir Ranđelović. "Morphometric analysis of vegetative and reproductive organs of the Fragaria species." Biologica Nyssana 10, no. 1 (2019): 9–16. https://doi.org/10.5281/zenodo.3463982.

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This paper presents results of a study on morphological variability of Fragaria vesca, F. moschata and F. viridis populations collected in their natural habitats in Serbia, Macedonia and Montenegro. The goals of the study were to determine the degree of morphological variability as well as the morphological characters with the most significant impact on differentiation of these species. The morphometric study was carried out on 7 populations (142 individuals x 19 morphological characters). Analyses included standard univariate (Descriptive, ANOVA) and multivariate (Principal Component Analysis

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Mondal, M. Monjurul Alam, and M. Monjurul Alam Mondal. "Influence of defoliation during reproductive stage on seed yield in uniculm mungbean plants." World Journal of Biology and Biotechnology 6, no. 2 (2021): 11. http://dx.doi.org/10.33865/wjb.06.02.0412.

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An experiment was conducted at the pot yard of Bangladesh Institute of Nuclear Agriculture, Mymensingh during the period from February to May 2018 to investigate the effect of defoliations on morphological characters, yield attributes and yield of uniculm mungbean plant. The experiment comprised of nine levels of defoliation viz., control, 2, 3, 4, 5 leaves removal from base and 2, 3, 4 and 5 leaves removal from top out of 7 leaves during flowering start phase. The morpho-physiological characters such as plant height, stem diameter, leaf area and total dry mass plant-1 and number of racemes, r

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M. A. Mondal, M., and M. S. H. Bhuiyan. "Morphological and reproductive characterization of developed mutants in groundnut." International Journal of Advanced Geosciences 8, no. 1 (2020): 21. http://dx.doi.org/10.14419/ijag.v8i1.30338.

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Twenty-eight established groundnut mutants and two check cultivars were studied during Kharif-I (March-June) season of 2017 and 2018 to find out their variability and distinct character(s) as identifying keys. All the mutant lines showed erect type sequential branching habits with two seeds in each pod although they had shown significant variability in all vegetative and reproductive structures. According to cluster analysis, 30 mutants/varieties clustered into three major groups at distance level 60 based on the morphological variability of 14 characters. The variability of 14 morphological c

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De, Block Petra, and Alexander Vrijdaghs. "Development of reproductive organs in Canephora madagascariensis (Octotropideae - Rubiaceae)." Plant Ecology and Evolution 146, no. (3) (2013): 310–27. https://doi.org/10.5091/plecevo.2013.844.

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<b>Background and aims</b> – Ontogenetic studies provide valuable morphological characters to aid interpretation of evolutionary scenarios. But they are rare within the Rubiaceae and the variation in floral ontogenetic patterns in the different Rubiaceae lineages remains underexplored. Here, we provide the first developmental study of the reproductive organs of <i>Canephora madagascariensis</i>, a typical representative of the poorly known tribe Octotropideae in most of its characters except for its unique, flattened, assimilating, 'phylloclade-like' inflorescences. <b>Methods</b> – Using SEM

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27

Clutton-Brock, Tim. "Reproductive competition and sexual selection." Philosophical Transactions of the Royal Society B: Biological Sciences 372, no. 1729 (2017): 20160310. http://dx.doi.org/10.1098/rstb.2016.0310.

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This paper traces the development of our understanding of the development of different approaches to estimating the strength of reproductive competition and sexual selection in the two sexes, based on measures of the operational sex ratio, the opportunity for sexual selection and contrasts in selection gradients between the sexes. It argues that different approaches provide complementary insights into the causes of sex differences in reproductive competition, the operation of sexual selection and the evolution of secondary sexual characters and that improvements in our understanding of the evo

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Lima, T. E., A. L. B. Sartori, and M. L. M. Rodrigues. "Plant antiherbivore defenses in Fabaceae species of the Chaco." Brazilian Journal of Biology 77, no. 2 (2016): 299–303. http://dx.doi.org/10.1590/1519-6984.12815.

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Abstract The establishment and maintenance of plant species in the Chaco, one of the widest continuous areas of forests in the South American with sharp climatic variations, are possibly related to biological features favoring plants with particular defenses. This study assesses the physical and chemical defenses mechanisms against herbivores of vegetative and reproductive organs. Its analyses of 12 species of Fabaceae (Leguminosae) collected in remnants of Brazilian Chaco shows that 75% present structural defense characters and 50% have chemical defense – defense proteins in their seeds, like

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Thawara, Nicha, Panida Kongsawadworakul, Piyakaset Suksathan, et al. "An overview of floral and vegetative evolution in the Asian clade of Bulbophyllum (Orchidaceae)." Plant Ecology and Evolution 157, no. 3 (2024): 313–26. http://dx.doi.org/10.5091/plecevo.114642.

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Background and aims – Bulbophyllum, the largest genus in Orchidaceae, exhibits a diverse morphology in both reproductive and vegetative characters. While trait diversity and evolution has been extensively studied in Malagasy species and within the Cirrhopetalum alliance clade, the evolution of reproductive and vegetative characters at the whole level of the Asian clade remains largely unexplored. Material and methods – We reconstructed the phylogeny of approximately 11% of all Asian Bulbophyllum species using Bayesian inference and maximum likelihood estimation based on nuclear (ITS) and chlor

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30

Morgan, M. T., and D. J. Schoen. "Selection on reproductive characters: floral morphology in Asclepias syriaca." Heredity 79, no. 4 (1997): 433–41. http://dx.doi.org/10.1038/hdy.1997.178.

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31

Dechaine, Jennifer M., Marcus T. Brock, and Cynthia Weinig. "QTL architecture of reproductive fitness characters in Brassica rapa." BMC Plant Biology 14, no. 1 (2014): 66. http://dx.doi.org/10.1186/1471-2229-14-66.

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Hosken, D. J., T. W. J. Garner, and P. I. Ward. "Sexual conflict selects for male and female reproductive characters." Current Biology 11, no. 7 (2001): 489–93. http://dx.doi.org/10.1016/s0960-9822(01)00146-4.

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Koelewijn, Hans P. "Sexual Differences in Reproductive Characters in Gynodioecious Plantago coronopus." Oikos 75, no. 3 (1996): 443. http://dx.doi.org/10.2307/3545885.

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Zhou, Jiang, Fuwen Wei, Ming Li, Chan Bosco Pui Lok, and Deli Wang. "Reproductive Characters and Mating Behaviour of Wild Nomascus hainanus." International Journal of Primatology 29, no. 4 (2008): 1037–46. http://dx.doi.org/10.1007/s10764-008-9272-7.

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Zelaya, Diego G., Marina Güller, and Cristián Ituarte. "Filling a blank in bivalve taxonomy: an integrative analysis of Cyamioidea (Mollusca: Bivalvia)." Zoological Journal of the Linnean Society 190, no. 2 (2019): 558–91. http://dx.doi.org/10.1093/zoolinnean/zlz144.

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Abstract This contribution provides the first integrative study of Cyamioidea, a group of bivalves largely neglected in the past. By combining information obtained from shell morphology, gross anatomy, histology, reproductive biology and DNA sequencing, the distinctive characters of Cyamioidea are determined, and the taxa belonging to this superfamily are revised. Gaimardioidea, previously considered as a distinct superfamily, is reduced to family level (Gaimardiidae), which, along with Cyamiidae, are assigned to Cyamioidea. All studied cyamioideans share a common reproductive character: the p

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Gompert, Zachariah. "Phenotypic Dimensions of Reproductive Isolation Between Northern and Melissa Blue Butterflies in the Rocky Mountains." UW National Parks Service Research Station Annual Reports 32 (January 1, 2009): 97–100. http://dx.doi.org/10.13001/uwnpsrc.2009.3761.

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Biological diversity results from speciation, which generally involves the splitting of an ancestral species into descendant species due to adaptation to different niches or the evolution of reproductive incompatibilities (Coyne and Orr 2004). The diverse flora and fauna of the world, including the native inhabitants of the Greater Yellowstone Area (GYA), exist as a result of the speciation process. The central role speciation plays in generating biological diversity imbues importance to our understanding of this process. The general importance of a thorough understanding of speciation is ampl

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Gompert, Zachariah. "Phenotypic Dimensions of Reproductive Isolation Between Northern and Melissa Blue Butterflies in the Rocky Mountains." UW National Parks Service Research Station Annual Reports 33 (January 1, 2011): 101–5. http://dx.doi.org/10.13001/uwnpsrc.2011.3795.

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Biological diversity results from speciation, which generally involves the splitting of an ancestral species into descendant species due to adaptation to different niches or the evolution of reproductive incompatibilities (Coyne and Orr 2004). The diverse flora and fauna of the world, including the native inhabitants of the Greater Yellowstone Area (GYA), exist as a result of the speciation process. The central role speciation plays in generating biological diversity imbues importance to our understanding of this process. The general importance of a thorough understanding of speciation is ampl

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Longepierre, S., C. Grenot, and A. Hailey. "Individual, local and subspecific variation in female Hermann’s tortoise (Testudo hermanni) reproductive characters." Contributions to Zoology 72, no. 4 (2003): 221–26. http://dx.doi.org/10.1163/18759866-07204003.

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We studied reproductive characters of a population of the tortoise Testudo h. hermanni in the Plaine des Maures (Var), and compared these to another population in southern France and to T.h. boettgeri in Greece. Clutch characters, which are measures of total reproductive investment, showed no differences between subspecies or sites after body size correction by ANCOVA. Egg characters, which measure the division of this investment among offspring, did vary significantly among both subspecies and sites after correcting for body mass. The presence of such local variation should discourage relocat

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Lovell, Camille Collins, Katina A. Pappas-DeLuca, Anne K. Sebert Kuhlmann, et al. "“One Day I Might Find Myself HIV-Positive like Her”: Audience Involvement and Identification with Role Models in an Entertainment-Education Radio Drama in Botswana." International Quarterly of Community Health Education 28, no. 3 (2008): 181–200. http://dx.doi.org/10.2190/iq.28.3.b.

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Entertainment-education programs promote health and development goals throughout the world. This study looks specifically at a radio serial drama designed to provide behavioral role models for HIV prevention and reproductive health in Botswana as part of the behavior-change strategy, Modeling and Reinforcement to Combat HIV/AIDS (MARCH). The purpose of this qualitative study is to elucidate regular listeners' involvement and identification with three different types of fictional characters in the drama. Regular listeners were interviewed using a semi-structured guide; 31 interviews were analyz

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Frankham, R. "Are responses to artificial selection for reproductive fitness characters consistently asymmetrical?" Genetical Research 56, no. 1 (1990): 35–42. http://dx.doi.org/10.1017/s0016672300028858.

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SummaryNon-linear offspring-parent regressions and heritabilities are expected for characters showing genetic asymmetry due to directional dominance and/or asymmetrical gene frequencies. Since reproductive fitness characters exhibit these characteristics, they should show consistently nonlinear heritabilities, with greater heritabilities in the direction of lower fitness. As a consequence, responses to bi-directional selection on fitness traits should be asymmetrical in the same direction. This prediction has been tested by an analysis of published bi-directional selection experiments for repr

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Thawara, Nicha, Panida Kongsawadworakul, Piyakaset Suksathan, et al. "An overview of floral and vegetative evolution in the Asian clade of Bulbophyllum (Orchidaceae)." Plant Ecology and Evolution 157, no. (3) (2024): 313–26. https://doi.org/10.5091/plecevo.114642.

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Background and aims – <i>Bulbophyllum</i>, the largest genus in Orchidaceae, exhibits a diverse morphology in both reproductive and vegetative characters. While trait diversity and evolution has been extensively studied in Malagasy species and within the <i>Cirrhopetalum</i> alliance clade, the evolution of reproductive and vegetative characters at the whole level of the Asian clade remains largely unexplored. Material and methods – We reconstructed the phylogeny of approximately 11% of all Asian <i>Bulbophyllum</i> species using Bayesian inference and maximum likelihood estimation based on nu

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Kuswantoro, Heru, Rina Artari, Wiwit Rahajeng, Erliana Ginting, and Agus Supeno. "Genetic Variability, Heritability, and Correlation of Some Agronomical Characters of Soybean Varieties." Biosaintifika: Journal of Biology & Biology Education 10, no. 1 (2018): 9–15. http://dx.doi.org/10.15294/biosaintifika.v10i1.11014.

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Genetic diversity and inheritance of the traits determine the success of the breeding program. Analysis of genetic variability and heritability assist breeders to decide a strategy and appropriate selection criteria that will be used to repair the desired character. The purpose of this study was to obtain information about genetic diversity, heritability and correlation of nine agronomic characters of soybean varieties. The materials were 16 soybean varieties that arranged in a randomized block design with three replications. The results showed that days to flowering, number of branches per pl

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R.C, MISRA. "SELECTION INDICES IN GREENGRAM." Madras Agricultural Journal 72, june (1985): 311–16. http://dx.doi.org/10.29321/maj.10.a02377.

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Selection indices for yield were constructed on the basis of five different criteria (Viz, ha, G.A., rg, h-rg and P values) based on 1-9 characters using 30 varieties of greengram (Vigna radiata Wilczek,). Expected genetic gain in yield due to the indices were computed and their efficiency over direct selection for yield per se was assessed. In all the five groups the efficiency of the indices increased gradually with addition of characters to the indices, Combined direct and indirect selection was found to be more effective than indirect selection alone. The direct effect component (p.) of th

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R.C, MISRA. "CRITERIA FOR CHOICE OF CHARACTERS FOR CONSTRUCTION OF SELECTION INDICES IN GREENGRAM." Madras Agricultural Journal 72, May (1985): 265–71. http://dx.doi.org/10.29321/maj.10.a02373.

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Five genetle parameters viz. heritability (h), genetic advance (GA.), genotypic correlation of characters with yield (rg). h.rg and path-coefficient of the characters on yield (p) were estimated using 30 varieties of greengram (Vigna radiata Wilczek). Based on these parameters as the criteria five groups of 1 to 9 characters selection indices were constructed. Expected genetic gain in yield due to the indices were com- puted and their efficiency over direct selection for yield per se was assessed. In all the five groups the efficiency of the ludices increased gradually with addition of char- a

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Montanucci, Richard R. "A morphological study on the question of the hybrid origin of Astrophytum coahuilense (Cactaceae)." Journal of the Botanical Research Institute of Texas 18, no. 1 (2024): 163–85. http://dx.doi.org/10.17348/jbrit.v18.i1.1346.

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Two alternative hypotheses may explain the origin of Astrophytum coahuilense. One hypothesis is that A. coahuilense is an ancient diploid hybrid derived from interbreeding between A. capricorne and A. myriostigma. An alternative is that A. coahuilense arose via allopatric speciation and its similarity to A. myriostigma in vegetative characters is due to convergent evolution. The two hypotheses are tested, applying univariate analysis and Non-metric Multidimensional Scaling analysis to morphological datasets. Univariate analysis, which is based on 13 vegetative and 10 reproductive characters, s

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A. Dhakite, Pravin. "Chemical Mutagenic Effect on the Growth, Physioecological and Reproductive Parameter of Coriander sativum (Linnaeus)." International Journal of Current Microbiology and Applied Sciences 13, no. 12 (2024): 354369. https://doi.org/10.20546/ijcmas.2024.1312.038.

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The aim of this study was to modify the growth, physioecological and reproductive parameter of Coriander sativum by mutagenesis. The seeds of the plant were treated chemical mutagens with sodium azide in concentration of 0.5%, 0.1%, 1.5% and 2% respectively. The growth features was observed at an interval of one week to 7th week of their growth period. The data showed that seed germination value and lethality of plants were 75 and 80%, respectively and highest in control plants. The vegetative growth parameters such as stem length, root length, stem diameter and root diameter was highest at 2%

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Devlin, B. "The Effects of Stress on Reproductive Characters of Lobelia Cardinalis." Ecology 69, no. 6 (1988): 1716–20. http://dx.doi.org/10.2307/1941149.

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N., Bolbhat Sadashiv. "Multilocation Trails for Stability of Reproductive Characters of Horsegram Mutants." International Journal for Research in Applied Science and Engineering Technology 9, no. 4 (2021): 1338–45. http://dx.doi.org/10.22214/ijraset.2021.33945.

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Ciptadi, G., M. N. Ihsan, A. Budiarto, M. Mudawamah, A. I. Putri, and M. N. A Naufal. "Reproductive characters of senduro goat at lumajang district east java." Journal of Physics: Conference Series 1146 (January 2019): 012033. http://dx.doi.org/10.1088/1742-6596/1146/1/012033.

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Carter, Anthony M., and Andrea Mess. "Evolution of the placenta and associated reproductive characters in bats." Journal of Experimental Zoology Part B: Molecular and Developmental Evolution 310B, no. 5 (2008): 428–49. http://dx.doi.org/10.1002/jez.b.21216.

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