Results 11 to 20 of about 4,672,682 (301)
Extent of cross-fertilization in Orobanche cumana Wallr.
Sunflower broomrape (Orobanche cumana Wallr.) is considered a self-fertilizing species, but there is no indication as to whether it is strictly self-fertilized or that it presents some extent of cross-fertilization.
M. I. Rodríguez-Ojeda +3 more
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Comparing levels of geitonogamous visitation by honey bees and other pollinators
Geitonogamy, the transfer of pollen from one flower to another on the same plant, is often the primary means of self-pollination in flowering plants.
Dillon Travis, Joshua Kohn
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Self-Fertilization and the Evolution of Recombination [PDF]
Abstract In this article, we study the effect of self-fertilization on the evolution of a modifier allele that alters the recombination rate between two selected loci. We consider two different life cycles: under gametophytic selfing, a given proportion of fertilizations involves gametes produced by the same haploid individual, while ...
Denis, Roze, Thomas, Lenormand
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Balancing selection in self‐fertilizing populations [PDF]
Self-fertilization commonly occurs in hermaphroditic species, either occasionally or as the main reproductive mode. It strongly affects the genetic functioning of a population by increasing homozygosity and genetic drift and reducing the effectiveness of recombination.
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Hybridization is a major source of evolutionary innovation. In plants, epigenetic mechanisms can help to stabilize hybrid genomes and contribute to reproductive isolation, but the relationship between genetic and epigenetic changes in animal hybrids is ...
Waldir M. Berbel-Filho +7 more
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Fifty specimens of five strains (10 per strain) of Helisoma duryi from Lima (Peru), St. Croix (Virgin Islands), Formosa (Brazil), Cartago (Costa Rica) and St. Vincent (Lesser Antilles), reared in isolation for about 150 days, laid 103 eggs.
W. Lobato Paraense, Lygia R. Corrêa
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Hybridization generates a hopeful monster: a hermaphroditic selfing cichlid [PDF]
Compared with other phylogenetic groups, self-fertilization (selfing) is exceedingly rare in vertebrates and is known to occur only in one small clade of fishes.
Ola Svensson +3 more
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Fertilization is one of the most important events in living organisms to generate a new life with a mixed genetic background. To achieve successful fertilization, sperm and eggs must undergo complex processes in a sequential order.
Takako Saito +2 more
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Protein-carbohydrate interactions during fertilization [PDF]
Interaction between gametes during fertilization is at least in part regulated by carbohydrate moieties of the zona pellucida (ZP) and carbohydrate binding proteins of the sperm surface. This review focuses on the protein-carbohydrate interactions during
Plendl, J., Sinowatz, Fred, Kolle, S.
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Premise of the study: We developed 24 nuclear microsatellite primers from an enriched genomic library for the Pacific coastal dune endemic Camissoniopsis cheiranthifolia to study the consequences of mating system differentiation, the genetics of species'
Adriana López-Villalobos +2 more
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