Genome-Wide Association Study Reveals a New QTL for Salinity Tolerance in Barley (Hordeum vulgare L.)

Yun Fan; Gaofeng Zhou; Sergey Shabala; Zhong-Hua Chen; Shengguan Cai; Chengdao Li; Meixue Zhou

doi:10.3389/fpls.2016.00946

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Genome-Wide Association Study Reveals a New QTL for Salinity Tolerance in Barley (Hordeum vulgare L.)

Journal article

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Peer reviewed

Genome-Wide Association Study Reveals a New QTL for Salinity Tolerance in Barley (Hordeum vulgare L.)

Yun Fan, Gaofeng Zhou, Sergey Shabala, Zhong-Hua Chen, Shengguan Cai, Chengdao Li and Meixue Zhou

Frontiers in plant science, Vol.7, 946

2016

DOI: https://doi.org/10.3389/fpls.2016.00946

PMCID: PMC4923249

PMID: 27446173

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Abstract

barley

evaluation methods

genome wide association study

Plant Science

QTL mapping

salinity tolerance

Salinity stress is one of the most severe abiotic stresses that affect agricultural production. Genome wide association study (GWAS) has been widely used to detect genetic variations in extensive natural accessions with more recombination and higher resolution. In this study, 206 barley accessions collected worldwide were genotyped with 408 Diversity Arrays Technology (DArT) markers and evaluated for salinity stress tolerance using salinity tolerance score – a reliable trait developed in our previous work. GWAS for salinity tolerance had been conducted through a general linkage model and a mixed linkage model based on population structure and kinship. A total of 24 significant marker-trait associations were identified. A QTL on 4H with the nearest marker of bPb-9668 was consistently detected in all different methods. This QTL has not been reported before and is worth to be further confirmed with bi-parental populations.

Details

Title: Genome-Wide Association Study Reveals a New QTL for Salinity Tolerance in Barley (Hordeum vulgare L.)
Authors/Creators: Yun Fan - University of Tasmania
Gaofeng Zhou - Murdoch University
Sergey Shabala - University of Tasmania
Zhong-Hua Chen - Western Sydney University
Shengguan Cai - Western Sydney University
Chengdao Li - Murdoch University
Meixue Zhou - University of Tasmania
Publication Details: Frontiers in plant science, Vol.7, 946
Publisher: Frontiers Media S.A
Identifiers: 991005570080607891
Murdoch Affiliation: Centre for Crop and Food Innovation
Language: English
Resource Type: Journal article

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Collaboration types: Domestic collaboration
Citation topics: 3 Agriculture, Environment & Ecology; 3.4 Crop Science; 3.4.96 QTL
Web Of Science research areas: Plant Sciences
ESI research areas: Plant & Animal Science