Přirozená hybridizace mezi dvěma allopolyploidními pýry (Elitrigie, Poaceae): ekologické a evoluční aspekty

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985939%3A_____%2F07%3A00089131" target="_blank" >RIV/67985939:_____/07:00089131 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Recent natural hybridization between two allopolyploid wheatgrasses (Elytrigia, Poaceae): Ecological and evolutionary implications

Popis výsledku v původním jazyce

In the tribe Triticeae (family Poaceae), ancient hybridisations have produced a multitude of allopolyploid taxa whose origin is rather well-known. However, the role of recent natural hybridisation and introgression under different ecological conditions and the mechanisms generating variability are much less understood. Using molecular and cytological methods we investigated natural hybridisation and gene flow between two predominantly allohexaploid wheatgrasses, weedy Elytrigia repens and steppic E. intermedia, with respect to habitats characterised by different degrees of anthropogenic disturbance. Weedy E. repens was rare in a steppic locality whereas E. intermedia was almost absent at two sites of agricultural land-use. Nevertheless, hybrids were common there whereas none were found at the steppic locality, underlining the importance of different ecological conditions for hybrid formation or establishment. At one highly disturbed site, more than 16% of randomly collected plants were

Název v anglickém jazyce

Recent natural hybridization between two allopolyploid wheatgrasses (Elytrigia, Poaceae): Ecological and evolutionary implications

Popis výsledku anglicky

In the tribe Triticeae (family Poaceae), ancient hybridisations have produced a multitude of allopolyploid taxa whose origin is rather well-known. However, the role of recent natural hybridisation and introgression under different ecological conditions and the mechanisms generating variability are much less understood. Using molecular and cytological methods we investigated natural hybridisation and gene flow between two predominantly allohexaploid wheatgrasses, weedy Elytrigia repens and steppic E. intermedia, with respect to habitats characterised by different degrees of anthropogenic disturbance. Weedy E. repens was rare in a steppic locality whereas E. intermedia was almost absent at two sites of agricultural land-use. Nevertheless, hybrids were common there whereas none were found at the steppic locality, underlining the importance of different ecological conditions for hybrid formation or establishment. At one highly disturbed site, more than 16% of randomly collected plants were

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

EF - Botanika

OECD FORD obor

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Projekt

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

Návaznosti

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

Název periodika

Annals of Botany

ISSN

0305-7364

e-ISSN

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Svazek periodika

100

Číslo periodika v rámci svazku

-

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

12

Strana od-do

249-260

Kód UT WoS článku

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EID výsledku v databázi Scopus

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