2016 Zhou et al GWAS AL F-PS.pdf (894.11 kB)
Genome-wide association mapping of acid soil resistance in barley (Hordeum vulgare L.)
journal contribution
posted on 2023-05-18, 18:27 authored by Zhou, G, Broughton, S, Zhang, X-Q, Ma, Y, Meixue ZhouMeixue Zhou, Li, CGenome-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.
Funding
Grains Research & Development Corporation
History
Publication title
Frontiers in Plant ScienceVolume
7Article number
406Number
406Pagination
1-10ISSN
1664-462XDepartment/School
Tasmanian Institute of Agriculture (TIA)Publisher
Frontiers Research FoundationPlace of publication
SwitzerlandRights statement
© 2016 Zhou, Broughton, Zhang, Ma, Zhou and Li. Licensed under Creative Commons Attribution 4.0 International (CC BY 4.0) http://creativecommons.org/licenses/by/4.0/Repository Status
- Open