About: Production of polyhaploids by facultatively apomictic Pilosella can result in formation of new genotypes via genome doubling

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Haploid parthenogenesis in facultatively apomictic Pilosella generated polyhaploid progeny (with half the maternal chromosome set) both in natural populations and garden experiments. Production of polyhaploids varied considerably among different species, hybridogenous species and hybrids. A two-step process by which new genotypes of both P. aurantiaca (tetraploid) and P. rubra (hexaploid) were formed under garden conditions during a polyploidpolyhaploidpolyploid cycle is described. In the first step, the maternal plants generated dihaploid and trihaploid F1 progeny, respectively. Consequently, the F2 progeny resulting from the second step had a double ploidy level, identical to that of the original maternal parent. The complete process was autonomous, without contribution of pollen from parent genotype. This cycle necessarilly implicates increasing homozygosity in F2 progeny when compared to original maternal polyploid plant. Haploid parthenogenesis in facultatively apomictic Pilosella generated polyhaploid progeny (with half the maternal chromosome set) both in natural populations and garden experiments. Production of polyhaploids varied considerably among different species, hybridogenous species and hybrids. A two-step process by which new genotypes of both P. aurantiaca (tetraploid) and P. rubra (hexaploid) were formed under garden conditions during a polyploidpolyhaploidpolyploid cycle is described. In the first step, the maternal plants generated dihaploid and trihaploid F1 progeny, respectively. Consequently, the F2 progeny resulting from the second step had a double ploidy level, identical to that of the original maternal parent. The complete process was autonomous, without contribution of pollen from parent genotype. This cycle necessarilly implicates increasing homozygosity in F2 progeny when compared to original maternal polyploid plant. (en)
Title	Production of polyhaploids by facultatively apomictic Pilosella can result in formation of new genotypes via genome doubling Production of polyhaploids by facultatively apomictic Pilosella can result in formation of new genotypes via genome doubling (en)
skos:prefLabel	Production of polyhaploids by facultatively apomictic Pilosella can result in formation of new genotypes via genome doubling Production of polyhaploids by facultatively apomictic Pilosella can result in formation of new genotypes via genome doubling (en)
skos:notation	RIV/00023272:_____/11:#0001840!RIV13-MK0-00023272
http://linked.open...avai/riv/aktivita	P V Z
http://linked.open...avai/riv/aktivity	P(GA206/08/0890), V, Z(AV0Z60050516)
http://linked.open...iv/cisloPeriodika	3
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Rosenbaumová, Radka
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Národní muzeum
http://linked.open...dnocenehoVysledku	224284
http://linked.open...ai/riv/idVysledku	RIV/00023272:_____/11:#0001840
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	polyploid-polyhaploid-polyploid cycle; apomixis; genome doubling (en)
http://linked.open.../riv/klicoveSlovo	genome doubling polyploid-polyhaploid-polyploid cycle apomixis
http://linked.open...odStatuVydavatele	CZ - Česká republika
http://linked.open...ontrolniKodProRIV	[B1FD54657099]
http://linked.open...i/riv/nazevZdroje	Preslia
http://linked.open...in/vavai/riv/obor	EF
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Evolutionary processes within populations of facultative apomicts
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	83
http://linked.open...iv/tvurceVysledku	Krahulec, František Plačková, Ivana Rosenbaumová, Radka Krahulcová, Anna
http://linked.open...ain/vavai/riv/wos	000295384300013
http://linked.open...n/vavai/riv/zamer	Struktura, funkce a evoluce biodiversity fotoautotrofních organismů a hub: původ a příčiny jejich proměnlivosti, dynamika populací, společenstev a ekosystémů; využití vybraných výsledků k rozvoji Průhonického parku
issn	0032-7786
number of pages	20 (xsd:int)

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