Genome size discriminates between closely related taxa Elytrigia repens and E. intermedia (Poaceae: Triticeae) and their hybrid

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985939%3A_____%2F05%3A00025628" target="_blank" >RIV/67985939:_____/05:00025628 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Genome size discriminates between closely related taxa Elytrigia repens and E. intermedia (Poaceae: Triticeae) and their hybrid

Original language description

Flow cytometric and karyological investigations were performed on closely related taxa Elytrigia repens and E. intermedia (Poaceae: Triticeae) from the Czech Republic. DNA-hexaploids clearly prevailed among 238 examined plants and amounted to 96.2% of all samples. 2C-values SD for hexaploid Elytrigia repens and E. intermedia were estimated to 23.27 0.20 pg and 27.04 0.24 pg, respectively. Genome size thus allowed reliable separation of both species (difference ca 16%) as well as the discrimination of hybrid individuals. Natural hybridisation in E. repens ? intermedia alliance seems to be quite a common phenomenon as indicated from a large proportion (one sixth) of hexaploid samples with intermediate 2C-values. Previously, the crosses were most probablyneglected or misidentified due to their weak morphological differentiation. New nonaploid cytotypes (2n=9x=63) were revealed for both species as well as for the hybrids (determined on the basis of morphological characters), representing

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

EF - Botany

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2005

Confidentiality

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

Name of the periodical

Folia Geobotanica

ISSN

1211-9520

e-ISSN

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Volume of the periodical

40

Issue of the periodical within the volume

-

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

18

Pages from-to

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UT code for WoS article

000233038100005

EID of the result in the Scopus database

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