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Statements

Subject Item
n2:RIV%2F67985939%3A_____%2F06%3A00090969%21RIV08-AV0-67985939
rdf:type
skos:Concept n18:Vysledek
dcterms:description
The first attempt to artificially hybridize species of Potamogeton resulted in the hybrid P. perfoliatus x P. gramineus. The morphological features, reproductive behaviour and molecular markers of the offspring of this experimental hybridization were compared with those of the parental species and natural hybrids of the same assumed parentage. A phenotype corresponding to that of the natural hybrid P. x nitens was acquired from an experimental cross between P. perfoliatus and P. gramineus. All plants showed the ITS variants of both parental taxa, which is consistent with biparental inheritance of nuclear DNA. The experimental hybrid was used to test the maternal inheritance of chloroplast DNA in Potamogeton. Sequences of a chloroplast intergenic spacer (rpl20 -rps12) were identical with those of the female parent. Then, the directions of the crosses resulting in the natural hybrids were investigated. Of five natural populations of P. x nitens, P. gramineus was the maternal parent of two and P. perf... The first attempt to artificially hybridize species of Potamogeton resulted in the hybrid P. perfoliatus x P. gramineus. The morphological features, reproductive behaviour and molecular markers of the offspring of this experimental hybridization were compared with those of the parental species and natural hybrids of the same assumed parentage. A phenotype corresponding to that of the natural hybrid P. x nitens was acquired from an experimental cross between P. perfoliatus and P. gramineus. All plants showed the ITS variants of both parental taxa, which is consistent with biparental inheritance of nuclear DNA. The experimental hybrid was used to test the maternal inheritance of chloroplast DNA in Potamogeton. Sequences of a chloroplast intergenic spacer (rpl20 -rps12) were identical with those of the female parent. Then, the directions of the crosses resulting in the natural hybrids were investigated. Of five natural populations of P. x nitens, P. gramineus was the maternal parent of two and P. perf... Práce přináší výsledky zcela první experimentální hybridizace v rodu Potamogeton. Analýza jaderné DNA potvrdila přítomnost specifických sekvencí obou předpokládaných rodičovských druhů a analýza chloroplastové DNA její dědičnost po mateřské linii. Následně bylo zjištěno, že v přírodě dochází k hybridizaci mezi příslušnými druhy v obou směrech, tedy oplozením vajíčka na rostlině jednoho druhu pylem druhého druhu i naopak.
dcterms:title
Comparison of natural and artificial hybridization in Potamogeton Porovnání přirozené a experimentální hybridizace v rodu Potamogeton Comparison of natural and artificial hybridization in Potamogeton
skos:prefLabel
Comparison of natural and artificial hybridization in Potamogeton Porovnání přirozené a experimentální hybridizace v rodu Potamogeton Comparison of natural and artificial hybridization in Potamogeton
skos:notation
RIV/67985939:_____/06:00090969!RIV08-AV0-67985939
n4:strany
303;316
n4:aktivita
n13:P n13:Z
n4:aktivity
P(GA206/06/0593), P(GP206/03/P156), Z(AV0Z60050516)
n4:cisloPeriodika
3
n4:dodaniDat
n9:2008
n4:domaciTvurceVysledku
n5:3485498 n5:8460493
n4:druhVysledku
n12:J
n4:duvernostUdaju
n17:S
n4:entitaPredkladatele
n15:predkladatel
n4:idSjednocenehoVysledku
469296
n4:idVysledku
RIV/67985939:_____/06:00090969
n4:jazykVysledku
n7:eng
n4:klicovaSlova
hybridization; clonality; variation
n4:klicoveSlovo
n8:variation n8:clonality n8:hybridization
n4:kodStatuVydavatele
CZ - Česká republika
n4:kontrolniKodProRIV
[C2258E3C4C2A]
n4:nazevZdroje
Preslia
n4:obor
n10:EF
n4:pocetDomacichTvurcuVysledku
2
n4:pocetTvurcuVysledku
2
n4:projekt
n11:GP206%2F03%2FP156 n11:GA206%2F06%2F0593
n4:rokUplatneniVysledku
n9:2006
n4:svazekPeriodika
78
n4:tvurceVysledku
Kaplan, Zdeněk Fehrer, Judith
n4:zamer
n14:AV0Z60050516
s:issn
0032-7786
s:numberOfPages
202