Interspecific hybrids Trifolium pratense x Trifolium medium as the source of new diverzity

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F13%3A00065691" target="_blank" >RIV/00216224:14310/13:00065691 - 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

Interspecific hybrids Trifolium pratense x Trifolium medium as the source of new diverzity

Popis výsledku v původním jazyce

Red clover (Trifolium pratense) is very important forage crop from the leguminous family. It is an allogamous diploid with a 418 Mb genome. T. pratense is a high-quality fodder crop but shows a low persistency, which may be overcome by hybridisation withspecies that produce rhizomes. Hybrids between T. pratense (2n = 4x = 28) and T. medium (2n = 8x = 64) have been previously obtained by embryo rescue. The aim of this study was to evaluate interspecific variability of hybrids on the cytological level and on the phenotypic level via 16 characteristics. Plants of 99 families in two breeding nurseries had comparable chromosome numbers in five groups: 2n = 28 (76 and 66% of plants), bellow of 28 chromosomes (8.5 and 6.4% of plants), 2n = 29, 30 (15 and 26%of plants), 2n = 31, 40 (0.4 and 1.2% of plants) and 2n = 41 to 46 (0.1 and 0.3% of plants). The phenotypic characteristics were evaluated in three years. There were significant differences between the hybrids and T.

Název v anglickém jazyce

Interspecific hybrids Trifolium pratense x Trifolium medium as the source of new diverzity

Popis výsledku anglicky

Red clover (Trifolium pratense) is very important forage crop from the leguminous family. It is an allogamous diploid with a 418 Mb genome. T. pratense is a high-quality fodder crop but shows a low persistency, which may be overcome by hybridisation withspecies that produce rhizomes. Hybrids between T. pratense (2n = 4x = 28) and T. medium (2n = 8x = 64) have been previously obtained by embryo rescue. The aim of this study was to evaluate interspecific variability of hybrids on the cytological level and on the phenotypic level via 16 characteristics. Plants of 99 families in two breeding nurseries had comparable chromosome numbers in five groups: 2n = 28 (76 and 66% of plants), bellow of 28 chromosomes (8.5 and 6.4% of plants), 2n = 29, 30 (15 and 26%of plants), 2n = 31, 40 (0.4 and 1.2% of plants) and 2n = 41 to 46 (0.1 and 0.3% of plants). The phenotypic characteristics were evaluated in three years. There were significant differences between the hybrids and T.

Druh

O - Ostatní výsledky

CEP obor

GE - Šlechtění rostlin

OECD FORD obor

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Projekt

<a href="/cs/project/QI111A019" target="_blank" >QI111A019: Nové genomické postupy pro šlechtění cizosprašných plodin na zlepšení užitkových vlastností</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2013

Kód důvěrnosti údajů

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