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Apomixis

Current Biology, 2023
Wang and Underwood introduce apomixis in plants.
Yazhong, Wang, Charles J, Underwood
openaire   +2 more sources

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.
Uell Grossniklaus
exaly   +3 more sources

Developmental genetics of gametophytic apomixis

open access: yesTrends in Genetics, 2001
Some higher plants reproduce asexually by apomixis, a natural way of cloning through seeds. Apomictic plants produce progeny that are an exact genetic replica of the mother plant. The replication is achieved through changes in the female reproductive pathway such that female gametes develop without meiosis and embryos develop without fertilization ...
Daniel Grimanelli   +2 more
exaly   +4 more sources

Genetic mechanisms of apomixis [PDF]

open access: yesPhilosophical Transactions of the Royal Society 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
exaly   +3 more sources

Apomixis and Parthenogenesis

1980
Asexual reproduction occurs in plants as well as in animals. In plants, asexual reproduction is commonly known as apomixis.
openaire   +1 more source

Apomixis in Distant Hybridization

1992
As plants evolved to become large and complex, they did so in full multicellularity, sexuality, and structure. The evolution of complexity in the plant kingdom is nowhere better seen than in the elaboration of structures for sexual reproduction in plants as diverse as the algae and the angiosperms.
C. Ramachandran, V. Raghavan
openaire   +1 more source

Apomixis bei Archegoniaten

1967
Apogamie ist nach Winkler (1908) die Entstehung eines Sporophyten aus einer oder mehreren vegetativen Zellen des Gametophyten ohne einen dabei erfolgenden Befruchtungsvorgang, Parthenogenese die Entwicklung eines Sporophyten aus einer unbefruchteten Eizelle. Beide Vorgange zusammen mit der vegetativen Propagation bezeichnet Winkler (1908) als Apomixis.
openaire   +1 more source

Apomixis and amphimixis in flowering plants

Cytology and Genetics, 2008
The light microscopic and ultrastuctural events of apomictic seed development from the earliest stages through the embryo and endosperm development to maturity were compared with those of the sexual one. The problem of autonomous endosperm formation was postulated as the main problem in low apomictic seed set.
openaire   +2 more sources

Apomixis

Taxon, 1969
Askell Love, A. Rutishauser
openaire   +1 more source

Apomixis in Crop Improvement

2015
Apomixis is a method of asexual reproduction in plants with three main variants, viz., apospory, diplospory, and adventitious embryony. Genetic understanding of apomixis has been handicapped for a long time due to lack of techniques for a rapid and accurate identification of apomictic and normal plants.
Tavva S. S. Mohan Dev   +3 more
openaire   +1 more source

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