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Early growth stages salinity stress tolerance in CM72 x Gairdner doubled haploid barley population
A doubled haploid (DH) population of barley (Hordeum vulgare L.) generated from salinity tolerant genotype CM72 and salinity sensitive variety Gairdner was studied for salinity stress tolerance at germination, seedling emergence and first leaf full expansion growth stages. Germination study was cond...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5480976/ https://www.ncbi.nlm.nih.gov/pubmed/28640858 http://dx.doi.org/10.1371/journal.pone.0179715 |
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author | Angessa, Tefera Tolera Zhang, Xiao-Qi Zhou, Gaofeng Broughton, Sue Zhang, Wenying Li, Chengdao |
author_facet | Angessa, Tefera Tolera Zhang, Xiao-Qi Zhou, Gaofeng Broughton, Sue Zhang, Wenying Li, Chengdao |
author_sort | Angessa, Tefera Tolera |
collection | PubMed |
description | A doubled haploid (DH) population of barley (Hordeum vulgare L.) generated from salinity tolerant genotype CM72 and salinity sensitive variety Gairdner was studied for salinity stress tolerance at germination, seedling emergence and first leaf full expansion growth stages. Germination study was conducted with deionized water, 150 mM and 300 mM NaCl treatments. Seedling stage salinity tolerance was conducted with three treatments: control, 150 mM NaCl added at seedling emergence and first leaf full expansion growth stages. Results from this study revealed transgressive phenotypic segregations for germination percentage and biomass at seedling stage. Twelve QTL were identified on chromosomes 2H–6H each explaining 10–25% of the phenotypic variations. A QTL located at 176.5 cM on chromosome 3H was linked with fresh weight per plant and dry weight per plant in salinity stress induced at first leaf full expansion growth stage, and dry weight per plant in salinity stress induced at seedling emergence. A stable QTL for germination at both 150 and 300 mM salinity stress was mapped on chromosome 2H but distantly located from a QTL linked with seedling stage salinity stress tolerance. QTL, associated markers and genotypes identified in this study play important roles in developing salinity stress tolerant barley varieties. |
format | Online Article Text |
id | pubmed-5480976 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-54809762017-07-05 Early growth stages salinity stress tolerance in CM72 x Gairdner doubled haploid barley population Angessa, Tefera Tolera Zhang, Xiao-Qi Zhou, Gaofeng Broughton, Sue Zhang, Wenying Li, Chengdao PLoS One Research Article A doubled haploid (DH) population of barley (Hordeum vulgare L.) generated from salinity tolerant genotype CM72 and salinity sensitive variety Gairdner was studied for salinity stress tolerance at germination, seedling emergence and first leaf full expansion growth stages. Germination study was conducted with deionized water, 150 mM and 300 mM NaCl treatments. Seedling stage salinity tolerance was conducted with three treatments: control, 150 mM NaCl added at seedling emergence and first leaf full expansion growth stages. Results from this study revealed transgressive phenotypic segregations for germination percentage and biomass at seedling stage. Twelve QTL were identified on chromosomes 2H–6H each explaining 10–25% of the phenotypic variations. A QTL located at 176.5 cM on chromosome 3H was linked with fresh weight per plant and dry weight per plant in salinity stress induced at first leaf full expansion growth stage, and dry weight per plant in salinity stress induced at seedling emergence. A stable QTL for germination at both 150 and 300 mM salinity stress was mapped on chromosome 2H but distantly located from a QTL linked with seedling stage salinity stress tolerance. QTL, associated markers and genotypes identified in this study play important roles in developing salinity stress tolerant barley varieties. Public Library of Science 2017-06-22 /pmc/articles/PMC5480976/ /pubmed/28640858 http://dx.doi.org/10.1371/journal.pone.0179715 Text en © 2017 Angessa et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
spellingShingle | Research Article Angessa, Tefera Tolera Zhang, Xiao-Qi Zhou, Gaofeng Broughton, Sue Zhang, Wenying Li, Chengdao Early growth stages salinity stress tolerance in CM72 x Gairdner doubled haploid barley population |
title | Early growth stages salinity stress tolerance in CM72 x Gairdner doubled haploid barley population |
title_full | Early growth stages salinity stress tolerance in CM72 x Gairdner doubled haploid barley population |
title_fullStr | Early growth stages salinity stress tolerance in CM72 x Gairdner doubled haploid barley population |
title_full_unstemmed | Early growth stages salinity stress tolerance in CM72 x Gairdner doubled haploid barley population |
title_short | Early growth stages salinity stress tolerance in CM72 x Gairdner doubled haploid barley population |
title_sort | early growth stages salinity stress tolerance in cm72 x gairdner doubled haploid barley population |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5480976/ https://www.ncbi.nlm.nih.gov/pubmed/28640858 http://dx.doi.org/10.1371/journal.pone.0179715 |
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