Genetic architecture of winter hardiness and frost tolerance in triticale.

Abiotic stress experienced by autumn-sown crops during winter is of great economic importance as it can have a severe negative impact on yield. In this study, we investigated the genetic architecture of winter hardiness and frost tolerance in triticale. To this end, we used a large mapping populatio...

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Autores principales:	Wenxin Liu, Hans Peter Maurer, Guoliang Li, Matthew R Tucker, Manje Gowda, Elmar A Weissmann, Volker Hahn, Tobias Würschum
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2014
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/06444e861aea43e6824592796aaf6d22
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spelling	oai:doaj.org-article:06444e861aea43e6824592796aaf6d222021-11-18T08:15:46ZGenetic architecture of winter hardiness and frost tolerance in triticale.1932-620310.1371/journal.pone.0099848https://doaj.org/article/06444e861aea43e6824592796aaf6d222014-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24927281/?tool=EBIhttps://doaj.org/toc/1932-6203Abiotic stress experienced by autumn-sown crops during winter is of great economic importance as it can have a severe negative impact on yield. In this study, we investigated the genetic architecture of winter hardiness and frost tolerance in triticale. To this end, we used a large mapping population of 647 DH lines phenotyped for both traits in combination with genome-wide marker data. Employing multiple-line cross QTL mapping, we identified nine main effect QTL for winter hardiness and frost tolerance of which six were overlapping between both traits. Three major QTL were identified on chromosomes 5A, 1B and 5R. In addition, an epistasis scan revealed the contribution of epistasis to the genetic architecture of winter hardiness and frost tolerance in triticale. Taken together, our results show that winter hardiness and frost tolerance are complex traits that can be improved by phenotypic selection, but also that genomic approaches hold potential for a knowledge-based improvement of these important traits in elite triticale germplasm.Wenxin LiuHans Peter MaurerGuoliang LiMatthew R TuckerManje GowdaElmar A WeissmannVolker HahnTobias WürschumPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 9, Iss 6, p e99848 (2014)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Wenxin Liu Hans Peter Maurer Guoliang Li Matthew R Tucker Manje Gowda Elmar A Weissmann Volker Hahn Tobias Würschum Genetic architecture of winter hardiness and frost tolerance in triticale.
description	Abiotic stress experienced by autumn-sown crops during winter is of great economic importance as it can have a severe negative impact on yield. In this study, we investigated the genetic architecture of winter hardiness and frost tolerance in triticale. To this end, we used a large mapping population of 647 DH lines phenotyped for both traits in combination with genome-wide marker data. Employing multiple-line cross QTL mapping, we identified nine main effect QTL for winter hardiness and frost tolerance of which six were overlapping between both traits. Three major QTL were identified on chromosomes 5A, 1B and 5R. In addition, an epistasis scan revealed the contribution of epistasis to the genetic architecture of winter hardiness and frost tolerance in triticale. Taken together, our results show that winter hardiness and frost tolerance are complex traits that can be improved by phenotypic selection, but also that genomic approaches hold potential for a knowledge-based improvement of these important traits in elite triticale germplasm.
format	article
author	Wenxin Liu Hans Peter Maurer Guoliang Li Matthew R Tucker Manje Gowda Elmar A Weissmann Volker Hahn Tobias Würschum
author_facet	Wenxin Liu Hans Peter Maurer Guoliang Li Matthew R Tucker Manje Gowda Elmar A Weissmann Volker Hahn Tobias Würschum
author_sort	Wenxin Liu
title	Genetic architecture of winter hardiness and frost tolerance in triticale.
title_short	Genetic architecture of winter hardiness and frost tolerance in triticale.
title_full	Genetic architecture of winter hardiness and frost tolerance in triticale.
title_fullStr	Genetic architecture of winter hardiness and frost tolerance in triticale.
title_full_unstemmed	Genetic architecture of winter hardiness and frost tolerance in triticale.
title_sort	genetic architecture of winter hardiness and frost tolerance in triticale.
publisher	Public Library of Science (PLoS)
publishDate	2014
url	https://doaj.org/article/06444e861aea43e6824592796aaf6d22
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Genetic architecture of winter hardiness and frost tolerance in triticale.

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