Průtoková cytometrie, metoda vhodná ke studiu karyologické a reproduktivní variability v poulacích jestřábníků z podrodu Pilosella

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F07%3A00022539" target="_blank" >RIV/00216224:14310/07:00022539 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Flow cytometry, a suitable method for detection of ploidy level and reproductive variability within the hawkweeds populations, Hieracium subgen. Pilosella

Popis výsledku v původním jazyce

Hieracium subgen. Pilosella group has a high diversity of species, subspecies and hybridogenous types which is based on the reproductive diversity (clonal growth and sexual and/or apomictic seed reproduction). The study found that (1) Apomicts produced more variability than that of sexuals. Whereas progeny of sexual mothers was formed almost exclusively by hybridization via fusion of reduced gametes (n+n hybrids), the progeny of facultatively apomictic mothers has originated via four different pathways,i.e. apomixis (somatic parthenogenesis, 2n+0), hybridization via fusion either of reduced (n+n hybrids) or unreduced (2n+n hybrids) gametes and haploid parthenogenesis (n+0). (2) The high-polyploid hybrid biotypes (heptaploids, octoploids) generated a much variable progeny. (3) Higher ploidy level variability within the seeds than that within the seedlings confirmed the selection of specific progeny classes (namely polyhaploids, n+0) during germination and early development of seedlings

Název v anglickém jazyce

Flow cytometry, a suitable method for detection of ploidy level and reproductive variability within the hawkweeds populations, Hieracium subgen. Pilosella

Popis výsledku anglicky

Hieracium subgen. Pilosella group has a high diversity of species, subspecies and hybridogenous types which is based on the reproductive diversity (clonal growth and sexual and/or apomictic seed reproduction). The study found that (1) Apomicts produced more variability than that of sexuals. Whereas progeny of sexual mothers was formed almost exclusively by hybridization via fusion of reduced gametes (n+n hybrids), the progeny of facultatively apomictic mothers has originated via four different pathways,i.e. apomixis (somatic parthenogenesis, 2n+0), hybridization via fusion either of reduced (n+n hybrids) or unreduced (2n+n hybrids) gametes and haploid parthenogenesis (n+0). (2) The high-polyploid hybrid biotypes (heptaploids, octoploids) generated a much variable progeny. (3) Higher ploidy level variability within the seeds than that within the seedlings confirmed the selection of specific progeny classes (namely polyhaploids, n+0) during germination and early development of seedlings

Druh

O - Ostatní výsledky

CEP obor

EF - Botanika

OECD FORD obor

—

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2007

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů