Results 11 to 20 of about 110 (97)
Partitioning Apomixis Components to Understand and Utilize Gametophytic Apomixis [PDF]
Frontiers in Plant Science, 2019 Apomixis is a method of reproduction to generate clonal seeds and offers tremendous potential to fix heterozygosity and hybrid vigor. The process of apomictic seed development is complex and comprises three distinct components, viz., apomeiosis (leading to formation of unreduced egg cell), parthenogenesis (development of embryo without fertilization ...
Pankaj Kaushal +6 more
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Theoretical and Applied Genetics, 2023 AbstractApomixis is an asexual mode of reproduction through seeds where progeny are clones of the mother plants. Naturally apomictic modes of reproduction are found in hundreds of plant genera distributed across more than 30 plant families, but are absent in major crop plants.
Alexander Mahlandt +2 more
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Genetic mechanisms of apomixis [PDF]
Philosophical Transactions of the Royal Society of London. Series B: Biological Sciences, 2003 The introduction of apomixis to crops would allow desirable genotypes to be propagated while preventing undesirable gene flow, but so far there has been little success in transferring this trait from a natural apomict to another species. One explanation is the sensitivity of endosperm to changes in relative maternal and paternal contribution owing to ...
Melissa, Spielman +2 more
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Apomixis: A Developmental Perspective
Annual Review of Plant Biology, 2003 The term apomixis encompasses a suite of processes whereby seeds form asexually in plants. In contrast to sexual reproduction, seedlings arising from apomixis retain the genotype of the maternal parent. The transfer of apomixis and its effective utilization in crop plants (where it is largely absent) has major advantages in agriculture.
Koltunow, Anna M., Grossniklaus, Ueli
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Apomixis and strategies to induce apomixis to preserve hybrid vigor for multiple generations [PDF]
GM Crops & Food, 2020 Hybrid seeds of several important crops with supreme qualities including yield, biotic and abiotic stress tolerance have been cultivated for decades. Thus far, a major challenge with hybrid seeds is that they do not have the ability to produce plants with the same qualities over subsequent generations.
Sajid Fiaz +5 more
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The evolution of apomixis [PDF]
Heredity, 1981 The selective forces responsible for the evolution of gametophytic apomixis in outbreeding plant populations are analysed in terms of a simple single gene model. In the absence of selection, apomixis inevitably becomes fixed in a population. This conclusion holds regardless of the dominance relations of the alleles specifying apomictic versus sexual ...
D R Marshall, A H D Brown
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Molecular Basis of Apomixis in Plants [PDF]
Genes, 2021 Sexual reproduction in plants is a complex, stringently regulated process that leads to the creation of diaspores for a new generation: sexual seeds [...]
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Options for Engineering Apomixis in Plants
Frontiers in Plant Science, 2022 In plants, embryogenesis and reproduction are not strictly dependent on fertilization. Several species can produce embryos in seeds asexually, a process known as apomixis. Apomixis is defined as clonal asexual reproduction through seeds, whereby the progeny is identical to the maternal genotype, and provides valuable opportunities for developing ...
Yin, Pei Pei +3 more
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Apomixie facultative, polyploïdisation spontanée et dépression de consanguinité dans les semis de Citrus volkameriana [PDF]
, 1994 L\u27analyse de la constitution génétique de 135 plants de semis du porte-greffe Citrus volkameriana et des relations entre l\u27origine génétique et la vigueur des plants a été ...
Jacquemond, Camille +2 more
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Analyse fonctionnelle du rôle de la chromatine dans le contrôle de l apomixie et de la sexualité
, 2010 Chez les Angiospermes, l apomixie est un mode de reproduction asexuée par graines conduisant à la production de descendances génétiquement identiques à la plante mère, les embryons apomictiques étant produits sans méiose ni fécondation.
GHESQUIERE, Alain +2 more
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