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Genome-wide association mapping of acid soil resistance in barley (Hordeum vulgare L.)


Zhou, G and Broughton, S and Zhang, X-Q and Ma, Y and Zhou, M and Li, C, Genome-wide association mapping of acid soil resistance in barley (Hordeum vulgare L.), Frontiers in Plant Science, 7 Article 406. ISSN 1664-462X (2016) [Refereed Article]


Copyright Statement

2016 Zhou, Broughton, Zhang, Ma, Zhou and Li. Licensed under Creative Commons Attribution 4.0 International (CC BY 4.0)

DOI: doi:10.3389/fpls.2016.00406


Genome-wide association studies (GWAS) based on linkage disequilibrium (LD) have been used to detect QTLs underlying complex traits in major crops. In this study, we collected 218 barley (Hordeum vulgare L.) lines including wild barley and cultivated barley from China, Canada, Australia, and Europe. A total of 408 polymorphic markers were used for population structure and LD analysis. GWAS for acid soil resistance were performed on the population using a general linkage model (GLM) and a mixed linkage model (MLM), respectively. A total of 22 QTLs (quantitative trait loci) were detected with the GLM and MLM analyses. Two QTLs, close to markers bPb-1959 (133.1 cM) and bPb-8013 (86.7 cM), localized on chromosome 1H and 4H respectively, were consistently detected in two different trials with both the GLM and MLM analyses. Furthermore, bPb-8013, the closest marker to the major Al3+ resistance gene HvAACT1 in barley, was identified to be QTL5. The QTLs could be used in marker-assisted selection to identify and pyramid different loci for improved acid soil resistance in barley.

Item Details

Item Type:Refereed Article
Keywords:barley, acid soil tolerance, GWAS, QTL, aluminum resistance, association mapping
Research Division:Agricultural, Veterinary and Food Sciences
Research Group:Crop and pasture production
Research Field:Crop and pasture improvement (incl. selection and breeding)
Objective Division:Plant Production and Plant Primary Products
Objective Group:Grains and seeds
Objective Field:Barley
UTAS Author:Ma, Y (Ms Yanling Ma)
UTAS Author:Zhou, M (Professor Meixue Zhou)
ID Code:107938
Year Published:2016
Web of Science® Times Cited:6
Deposited By:Tasmanian Institute of Agriculture
Deposited On:2016-04-01
Last Modified:2017-11-03
Downloads:297 View Download Statistics

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