About: Ploidy level selection during germination and early stage of seedling growth in the progeny of allohexaploid facultative apomict, Hieracium rubrum (Asteraceae)     Goto   Sponge   NotDistinct   Permalink

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  • Pomocí průtokové cytometrie byla studována selekce potomstva v embryonální fázi v semenech a v semenáčcích. Potomstvo vzniklé z redukovaných vaječných buněk fakultativně apomiktického Hieracium rubrum mělo vyšší úmrtnost během klíčení a časné fáze růstu semenáčků, než potomstvo vzniklé z neredukovaných vaječných buněk. Tento trend byl zjištěn jak v potomstvu kastrovaných rostlin, tak v potomstvu rostlin křížených s H. pilosella. Výsledky naznačují, že alespoň část sexuálně vzniklého potomstva H. rubrum má nižší schopnost přežití, než apomikticky vzniklé potomstvo. (cs)
  • Selection within progeny was studied using flow cytometry of embryos in seeds and seedlings. Progeny originated from reduced egg cells of a facultatively apomictic Hieracium rubrum have higher mortality during germination and early establishment phase than the progeny arisen from unreduced egg cells. This trend was detected as within the progeny of emasculated plants, as well as of those crossed with H. pilosella. The results suggests that at least a proportion of the sexually derived progeny of H. rubrum have a lower survival rate than apomictically derived progeny.
  • Selection within progeny was studied using flow cytometry of embryos in seeds and seedlings. Progeny originated from reduced egg cells of a facultatively apomictic Hieracium rubrum have higher mortality during germination and early establishment phase than the progeny arisen from unreduced egg cells. This trend was detected as within the progeny of emasculated plants, as well as of those crossed with H. pilosella. The results suggests that at least a proportion of the sexually derived progeny of H. rubrum have a lower survival rate than apomictically derived progeny. (en)
Title
  • Ploidy level selection during germination and early stage of seedling growth in the progeny of allohexaploid facultative apomict, Hieracium rubrum (Asteraceae)
  • Selekce mezi ploidiemi v průběhu klíčení a rané fáze růstu semenáčků v potomstvu allohexaploidního fakultativně apomiktického druhu Hieracium rubrum (Asteraceae) (cs)
  • Ploidy level selection during germination and early stage of seedling growth in the progeny of allohexaploid facultative apomict, Hieracium rubrum (Asteraceae) (en)
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  • Ploidy level selection during germination and early stage of seedling growth in the progeny of allohexaploid facultative apomict, Hieracium rubrum (Asteraceae)
  • Selekce mezi ploidiemi v průběhu klíčení a rané fáze růstu semenáčků v potomstvu allohexaploidního fakultativně apomiktického druhu Hieracium rubrum (Asteraceae) (cs)
  • Ploidy level selection during germination and early stage of seedling growth in the progeny of allohexaploid facultative apomict, Hieracium rubrum (Asteraceae) (en)
skos:notation
  • RIV/67985939:_____/06:00050149!RIV07-AV0-67985939
http://linked.open.../vavai/riv/strany
  • 407;416
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  • P(IAA6005203), Z(AV0Z60050516)
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  • 492331
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  • RIV/67985939:_____/06:00050149
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  • facultative apomixis; hybrids; polyhaploids (en)
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  • CZ - Česká republika
http://linked.open...ontrolniKodProRIV
  • [76B17A171231]
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  • Folia Geobotanica
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http://linked.open...v/svazekPeriodika
  • 41
http://linked.open...iv/tvurceVysledku
  • Krahulec, František
  • Krahulcová, Anna
  • Papoušková, S.
http://linked.open...n/vavai/riv/zamer
issn
  • 1211-9520
number of pages
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