Genetic diversity and population structure analysis of European hexaploid bread wheat (Triticum aestivum L.) varieties.

Progress in plant breeding is facilitated by accurate information about genetic structure and diversity. Here, Diversity Array Technology (DArT) was used to characterize a population of 94 bread wheat (Triticum aestivum L.) varieties of mainly European origin. In total, 1,849 of 7,000 tested markers...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Nanna Hellum Nielsen, Gunter Backes, Jens Stougaard, Stig Uggerhøj Andersen, Ahmed Jahoor
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2014
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/5972ec124a9444908092760be948b8dd
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:5972ec124a9444908092760be948b8dd
record_format	dspace
spelling	oai:doaj.org-article:5972ec124a9444908092760be948b8dd2021-11-18T08:24:13ZGenetic diversity and population structure analysis of European hexaploid bread wheat (Triticum aestivum L.) varieties.1932-620310.1371/journal.pone.0094000https://doaj.org/article/5972ec124a9444908092760be948b8dd2014-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24718292/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203Progress in plant breeding is facilitated by accurate information about genetic structure and diversity. Here, Diversity Array Technology (DArT) was used to characterize a population of 94 bread wheat (Triticum aestivum L.) varieties of mainly European origin. In total, 1,849 of 7,000 tested markers were polymorphic and could be used for population structure analysis. Two major subgroups of wheat varieties, GrI and GrII, were identified using the program STRUCTURE, and confirmed by principal component analysis (PCA). These subgroups were largely separated according to origin; GrI comprised varieties from Southern and Eastern Europe, whereas GrII contained mostly modern varieties from Western and Northern Europe. A large proportion of the markers contributing most to the genetic separation of the subgroups were located on chromosome 2D near the Reduced height 8 (Rht8) locus, and PCR-based genotyping suggested that breeding for the Rht8 allele had a major impact on subgroup separation. Consistently, analysis of linkage disequilibrium (LD) suggested that different selective pressures had acted on chromosome 2D in the two subgroups. Our data provides an overview of the allele composition of bread wheat varieties anchored to DArT markers, which will facilitate targeted combination of alleles following DArT-based QTL studies. In addition, the genetic diversity and distance data combined with specific Rht8 genotypes can now be used by breeders to guide selection of crossing parents.Nanna Hellum NielsenGunter BackesJens StougaardStig Uggerhøj AndersenAhmed JahoorPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 9, Iss 4, p e94000 (2014)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Nanna Hellum Nielsen Gunter Backes Jens Stougaard Stig Uggerhøj Andersen Ahmed Jahoor Genetic diversity and population structure analysis of European hexaploid bread wheat (Triticum aestivum L.) varieties.
description	Progress in plant breeding is facilitated by accurate information about genetic structure and diversity. Here, Diversity Array Technology (DArT) was used to characterize a population of 94 bread wheat (Triticum aestivum L.) varieties of mainly European origin. In total, 1,849 of 7,000 tested markers were polymorphic and could be used for population structure analysis. Two major subgroups of wheat varieties, GrI and GrII, were identified using the program STRUCTURE, and confirmed by principal component analysis (PCA). These subgroups were largely separated according to origin; GrI comprised varieties from Southern and Eastern Europe, whereas GrII contained mostly modern varieties from Western and Northern Europe. A large proportion of the markers contributing most to the genetic separation of the subgroups were located on chromosome 2D near the Reduced height 8 (Rht8) locus, and PCR-based genotyping suggested that breeding for the Rht8 allele had a major impact on subgroup separation. Consistently, analysis of linkage disequilibrium (LD) suggested that different selective pressures had acted on chromosome 2D in the two subgroups. Our data provides an overview of the allele composition of bread wheat varieties anchored to DArT markers, which will facilitate targeted combination of alleles following DArT-based QTL studies. In addition, the genetic diversity and distance data combined with specific Rht8 genotypes can now be used by breeders to guide selection of crossing parents.
format	article
author	Nanna Hellum Nielsen Gunter Backes Jens Stougaard Stig Uggerhøj Andersen Ahmed Jahoor
author_facet	Nanna Hellum Nielsen Gunter Backes Jens Stougaard Stig Uggerhøj Andersen Ahmed Jahoor
author_sort	Nanna Hellum Nielsen
title	Genetic diversity and population structure analysis of European hexaploid bread wheat (Triticum aestivum L.) varieties.
title_short	Genetic diversity and population structure analysis of European hexaploid bread wheat (Triticum aestivum L.) varieties.
title_full	Genetic diversity and population structure analysis of European hexaploid bread wheat (Triticum aestivum L.) varieties.
title_fullStr	Genetic diversity and population structure analysis of European hexaploid bread wheat (Triticum aestivum L.) varieties.
title_full_unstemmed	Genetic diversity and population structure analysis of European hexaploid bread wheat (Triticum aestivum L.) varieties.
title_sort	genetic diversity and population structure analysis of european hexaploid bread wheat (triticum aestivum l.) varieties.
publisher	Public Library of Science (PLoS)
publishDate	2014
url	https://doaj.org/article/5972ec124a9444908092760be948b8dd
work_keys_str_mv	AT nannahellumnielsen geneticdiversityandpopulationstructureanalysisofeuropeanhexaploidbreadwheattriticumaestivumlvarieties AT gunterbackes geneticdiversityandpopulationstructureanalysisofeuropeanhexaploidbreadwheattriticumaestivumlvarieties AT jensstougaard geneticdiversityandpopulationstructureanalysisofeuropeanhexaploidbreadwheattriticumaestivumlvarieties AT stiguggerhøjandersen geneticdiversityandpopulationstructureanalysisofeuropeanhexaploidbreadwheattriticumaestivumlvarieties AT ahmedjahoor geneticdiversityandpopulationstructureanalysisofeuropeanhexaploidbreadwheattriticumaestivumlvarieties
_version_	1718421862154764288

Genetic diversity and population structure analysis of European hexaploid bread wheat (Triticum aestivum L.) varieties.

Ejemplares similares