title: [Cytogenetic peculiarities of cell genesis in apical meristems under gametophytic apomixis (using autonomous apomicts of the Asteraceae as an example)].
abstract: Cytogenetic peculiarities of cell genesis in apical meristems of apomicts has been analyzed using a series of the Asteraceae species as an example. The extent to which aneu- and mixoploids are spread among plants in the investigated populations of the Asteraceae species is so high (up to 30-60% of the studied plants and their offspring), that it seems reasonable to suppose that their rise is a natural phenomenon. It has been shown that in the aposporous facultative apomict Pilosella officinarum microgametophyte is a relatively stable element of the seed reproduction system from the point of view of caryotypical variation.
authors.forename: A S
authors.initials: AS
authors.lastname: Kashin
authors.forename: M I
authors.initials: MI
authors.lastname: Tsvetova
authors.forename: Iu A
authors.initials: IuA
authors.lastname: Demochko
mesh_terms: D000782:Aneuploidy; D019659:Asteraceae / Q000166:cytology / Q000235:genetics* / Q000254:growth & development; D032461:Chromosomes, Plant; D055993:Germ Cells, Plant / Q000166:cytology* / Q000254:growth & development; D018519:Meristem / Q000166:cytology / Q000235:genetics* / Q000254:growth & development; D011058:Pollen; D011123:Polyploidy; D012100:Reproduction, Asexual / Q000235:genetics*; D013170:Spores / Q000166:cytology / Q000235:genetics / Q000254:growth & development