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Statements

Subject Item
n2:RIV%2F00216224%3A14310%2F06%3A00015897%21RIV10-MZE-14310___
rdf:type
n19:Vysledek skos:Concept
dcterms: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 for hybrid 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. 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 for hybrid 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.
dcterms:title
Identification of barriers to interspecific crosses in the genus Trifolium Identification of barriers to interspecific crosses in the genus Trifolium
skos:prefLabel
Identification of barriers to interspecific crosses in the genus Trifolium Identification of barriers to interspecific crosses in the genus Trifolium
skos:notation
RIV/00216224:14310/06:00015897!RIV10-MZE-14310___
n4:aktivita
n8:Z n8:P
n4:aktivity
P(1G46034), P(GD204/05/H505), Z(MSM0021622415)
n4:cisloPeriodika
1
n4:dodaniDat
n9:2010
n4:domaciTvurceVysledku
n6:9200649 n6:5004209
n4:druhVysledku
n13:J
n4:duvernostUdaju
n5:S
n4:entitaPredkladatele
n15:predkladatel
n4:idSjednocenehoVysledku
478700
n4:idVysledku
RIV/00216224:14310/06:00015897
n4:jazykVysledku
n12:eng
n4:klicovaSlova
barriers of crossability - clearing - clover - embryogenesis - interspecific hybridisation - ploidy level - Trifolium
n4:klicoveSlovo
n17:barriers%20of%20crossability
n4:kodStatuVydavatele
DK - Dánské království
n4:kontrolniKodProRIV
[EE25F0AE9AFA]
n4:nazevZdroje
Euphytica
n4:obor
n7:GG
n4:pocetDomacichTvurcuVysledku
2
n4:pocetTvurcuVysledku
3
n4:projekt
n14:GD204%2F05%2FH505 n14:1G46034
n4:rokUplatneniVysledku
n9:2006
n4:svazekPeriodika
150
n4:tvurceVysledku
Jakešová, Hana Řepková, Jana Jungmannová, Barbara
n4:wos
000241578700005
n4:zamer
n16:MSM0021622415
s:issn
0014-2336
s:numberOfPages
10
n18:organizacniJednotka
14310