Identification of barriers to interspecific crosses in the genus Trifolium

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F06%3A00015897" target="_blank" >RIV/00216224:14310/06:00015897 - isvavai.cz</a>

Result on the web

—

DOI - Digital Object Identifier

—

Result language

angličtina

Original language name

Identification of barriers to interspecific crosses in the genus Trifolium

Original language description

Study of pre- and post-fertilisation barriers after interspecific crosses of diploid and tetraploid Trifolium pratense L. and wild species T. alpestre L., T. medium L. and T. sarosiense Hazsl. was aimed to the finding of a cross combination promising forhybrid obtaining. Growth of pollen tubes was arrested in interspecific crosses mainly when T. pratense was on diploid level. To investigate the post-fertilisation barriers in detail, hybrid embryo viability was traced by two clearing treatments of immature seeds, using either chloral hydrate which showed to be most suitable or a mixture of benzyl benzoate and dibutyl phthalate. In interspecific combinations T. pratense (4x) x either T. alpestre or T. sarosiense, enlargement of immature seeds occurred,but no hybrid embryo was traced. Of the wild species used as a male parent for crosses, T. medium was the only exception from the point of view of fertilisation. Globular, heart and early torpedo stages of hybrid embryos were observed 7 d

Czech name

Identifikace bariér křižitelnosti u rodu Trifolium

Czech description

Obsahem práce je studium prezygotických a postzygotických bariér křižitelnosti po mezidruhové hybridizaci Trifolium pratense L. a planých druhů T. alpestre L., T. medium L. a T. sarosiense Hazsl. Růst pylových láček po mezidrových kříženích byl zablokován jen v malém rozsahu. Ke studiu postzygotických bariér a životaschopnosti embrya bylo použito projasňování chloralhydrátem nebo směsí benzyl benzoátu a dibutyl phtalátu.

Type

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

CEP classification

GG - Zootechnics

OECD FORD branch

—

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

2006

Confidentiality

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

Name of the periodical

Euphytica

ISSN

0014-2336

e-ISSN

—

Volume of the periodical

150

Issue of the periodical within the volume

1

Country of publishing house

DK - DENMARK

Number of pages

10

Pages from-to

39-48

UT code for WoS article

—

EID of the result in the Scopus database

—