2014
The X Chromosome Is Necessary for Somatic Development in the Dioecious Silene latifolia: Cytogenetic and Molecular Evidence and Sequencing of a Haploid Genome
SOUKUPOVÁ, Magda; Eva NEVRTALOVÁ; Jana ČÍŽKOVÁ; Ivan VOGEL; Radim CEGAN et al.Základní údaje
Originální název
The X Chromosome Is Necessary for Somatic Development in the Dioecious Silene latifolia: Cytogenetic and Molecular Evidence and Sequencing of a Haploid Genome
Autoři
SOUKUPOVÁ, Magda; Eva NEVRTALOVÁ; Jana ČÍŽKOVÁ; Ivan VOGEL; Radim CEGAN; Roman HOBZA a Boris VYSKOT
Vydání
Cytogenetic and Genome research, Basel, Karger, 2014, 1424-8581
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
Genetika a molekulární biologie
Stát vydavatele
Švýcarsko
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 1.561
Označené pro přenos do RIV
Ano
Kód RIV
RIV/00216224:14740/14:00074437
Organizační jednotka
Středoevropský technologický institut
UT WoS
EID Scopus
Klíčová slova anglicky
Anther culture; Cytometry; Dihaploids; Genome sequencing; Haploid female plants; Sex chromosomes; Silene latifolia
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 4. 3. 2015 16:28, Martina Prášilová
Anotace
V originále
Silene latifolia (or white campion) possesses a well-established sex determination system with a dominant Y chromosome in males (the mammalian type). The heteromorphic sex chromosomes X and Y in S. latifolia largely stopped recombination; thus, we can expect a gradual genetic degeneration of the Y chromosome. It is well proven that neither diploid nor polyploid S. latifolia sporophytes can survive without at least one X, so the only life stage possessing the Y as the sole sex chromosome is the male gametophyte (pollen tube), while the female gametophyte seems to be X-dependent. Previous studies on anther-derived plants of this species showed that the obtained plants (largely haploid or dihaploid) were phenotypically and cytologically female. In this paper, we provide molecular evidence for the inviability of plants lacking the X chromosome. Using sex-specific PCR primers, we show that all plantlets and plants derived from anther cultures are female. In studying anther-derived diploid females by sequencing of X-linked markers, we demonstrate that these plants are really homozygous dihaploids. A haploid regenerant plant was sequenced (8x genome coverage) using Illumina technology. Genome data are disposable in the EMBL database as a standard for full genome and X chromosome assembly in this model species. Homozygous dihaploids were back-crossed with males to yield a progeny useful for the study of the evolution of the Y chromosome. (C) 2014 S. Karger AG, Basel
Návaznosti
| GBP501/12/G090, projekt VaV |
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