About: When fathers are instant losers: homogenization of rDNA loci in recently formed Cardamine X schulzii trigenomic allopolyploid

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About: When fathers are instant losers: homogenization of rDNA loci in recently formed Cardamine X schulzii trigenomic allopolyploid Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://onlinelibrary.wiley.com/doi/10.1111/nph.12873/epdf
Description	Recently formed allopolyploids represent an excellent system to study the impacts of hybridization and genomic duplication on genome structure and evolution. Here we explored the 35S rRNA genes (rDNA) in the Cardamine x schulzii allohexaploid that was formed by two subsequent hybridization events within the past c. 150 yr. The rDNA loci were analyzed by cloning, next generation sequencing (NGS), RT-PCR and FISH methods. The primary C. x insueta triploid hybrid derived from C. rivularis (female) and C. amara (male) had gene ratios highly skewed towards maternal sequences. Similarly, C. x schulzii, originating from the secondary hybridization event involving C. x insueta (female) and C. pratensis (male), showed a reduction in paternal rDNA homeologs despite an excess of chromosomes inherited from C. pratensis. We also identified novel rDNA loci in C. x schulzii, suggesting that lost loci might be slowly reinstalled by translocation (but not recombination) of genes from partner genomes. Recently formed allopolyploids represent an excellent system to study the impacts of hybridization and genomic duplication on genome structure and evolution. Here we explored the 35S rRNA genes (rDNA) in the Cardamine x schulzii allohexaploid that was formed by two subsequent hybridization events within the past c. 150 yr. The rDNA loci were analyzed by cloning, next generation sequencing (NGS), RT-PCR and FISH methods. The primary C. x insueta triploid hybrid derived from C. rivularis (female) and C. amara (male) had gene ratios highly skewed towards maternal sequences. Similarly, C. x schulzii, originating from the secondary hybridization event involving C. x insueta (female) and C. pratensis (male), showed a reduction in paternal rDNA homeologs despite an excess of chromosomes inherited from C. pratensis. We also identified novel rDNA loci in C. x schulzii, suggesting that lost loci might be slowly reinstalled by translocation (but not recombination) of genes from partner genomes. (en)
Title	When fathers are instant losers: homogenization of rDNA loci in recently formed Cardamine X schulzii trigenomic allopolyploid When fathers are instant losers: homogenization of rDNA loci in recently formed Cardamine X schulzii trigenomic allopolyploid (en)
skos:prefLabel	When fathers are instant losers: homogenization of rDNA loci in recently formed Cardamine X schulzii trigenomic allopolyploid When fathers are instant losers: homogenization of rDNA loci in recently formed Cardamine X schulzii trigenomic allopolyploid (en)
skos:notation	RIV/00216224:14740/14:00074135!RIV15-MSM-14740___
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(EE2.3.20.0189), P(EE2.3.30.0037), P(GBP501/12/G090)
http://linked.open...iv/cisloPeriodika	4
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Lysák, Martin Mandáková, Terezie
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	Masarykova univerzita / Středoevropský technologický institut
http://linked.open...dnocenehoVysledku	56146
http://linked.open...ai/riv/idVysledku	RIV/00216224:14740/14:00074135
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	NUCLEAR RIBOSOMAL DNA; RNA GENE SITES; CONCERTED EVOLUTION; TRAGOPOGON ASTERACEAE; NATURAL-POPULATIONS; SENECIO-CAMBRENSIS; MOLECULAR EVIDENCE; BRASSICA-NAPUS; PARENTAL RDNA; GENOME (en)
http://linked.open.../riv/klicoveSlovo	TRAGOPOGON ASTERACEAE NUCLEAR RIBOSOMAL DNA CONCERTED EVOLUTION MOLECULAR EVIDENCE GENOME BRASSICA-NAPUS NATURAL-POPULATIONS PARENTAL RDNA RNA GENE SITES SENECIO-CAMBRENSIS
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[3ED5F91B8344]
http://linked.open...i/riv/nazevZdroje	New Phytologist
http://linked.open...in/vavai/riv/obor	EB
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	7 (xsd:int)
http://linked.open...vavai/riv/projekt	Development of excellence in evolutionary cytogenomics, epigenetics and cell signalling Employment of Best Young Scientists for International Cooperation Empowerment Evolution and Function of Complex Plant Genomes
http://linked.open...UplatneniVysledku	2014
http://linked.open...v/svazekPeriodika	203
http://linked.open...iv/tvurceVysledku	Kovařík, Aleš Lysák, Martin Mummenhoff, Klaus Mandáková, Terezie Zozomová-Lihová, Judita Kovaříková, Alena Mühlhausen, Andreas
http://linked.open...ain/vavai/riv/wos	000340286000010
issn	0028-646X
number of pages	13 (xsd:int)
http://bibframe.org/vocab/doi	10.1111/nph.12873
http://localhost/t...ganizacniJednotka	14740

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