Redukce ploidie pomocí androgeneze in vitro u mezirodových hybridů Lolium-Festuca pro šlechtění trávníkových trav

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389030%3A_____%2F05%3A00024506" target="_blank" >RIV/61389030:_____/05:00024506 - 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

Reduction of ploidy level by androgenesis in intergeneric Lolium-Festuca hybrids for turf grass breeding

Popis výsledku v původním jazyce

To widen the gene pool of cool season turfgrasses, intergeneric tetraploid hybrids of Festuca pratensis Hudson with Lolium perenne L. and L. multiflorum Lam. are being screened for desirable turf characteristics. Anther culture was used to reduce their ploidy level to diploid. Of the 37 557 anthers cultured, 1986 green and 904 albino plantlets were regenerated with large differences in androgenic responses among the genotypes tested. Lolium perenne regenerated only albino plants, and that with a low frequency, while in F. pratensis x L. perenne and L. multiflorum x F. pratensis hybrids 3.7 and 25.5 green plants per 100 anthers cultured were recovered, respectively. Chromosome numbers among the progeny ranged from 13 to 56, with a majority being diploid(about 14) or tetraploid (about 28). The rates of spontaneous chromosome doubling were 50% in L. multiflorum, 25.7% in L. multiflorum X F. pratensis, and 8.3% in F. pratensis X L. perenne hybrids. In situ probing with total genomic DN...

Název v anglickém jazyce

Reduction of ploidy level by androgenesis in intergeneric Lolium-Festuca hybrids for turf grass breeding

Popis výsledku anglicky

To widen the gene pool of cool season turfgrasses, intergeneric tetraploid hybrids of Festuca pratensis Hudson with Lolium perenne L. and L. multiflorum Lam. are being screened for desirable turf characteristics. Anther culture was used to reduce their ploidy level to diploid. Of the 37 557 anthers cultured, 1986 green and 904 albino plantlets were regenerated with large differences in androgenic responses among the genotypes tested. Lolium perenne regenerated only albino plants, and that with a low frequency, while in F. pratensis x L. perenne and L. multiflorum x F. pratensis hybrids 3.7 and 25.5 green plants per 100 anthers cultured were recovered, respectively. Chromosome numbers among the progeny ranged from 13 to 56, with a majority being diploid(about 14) or tetraploid (about 28). The rates of spontaneous chromosome doubling were 50% in L. multiflorum, 25.7% in L. multiflorum X F. pratensis, and 8.3% in F. pratensis X L. perenne hybrids. In situ probing with total genomic DN...

Druh

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

CEP obor

EB - Genetika a molekulární biologie

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2005

Kód důvěrnosti údajů

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

Název periodika

Crop Science

ISSN

0011-183X

e-ISSN

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Svazek periodika

45

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

274-281

Kód UT WoS článku

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EID výsledku v databázi Scopus

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