Comparative Mapping and Candidate Gene Analysis of SSIIa Associated with Grain Amylopectin Content in Barley (Hordeum vulgare L.).
Comparative Mapping and Candidate Gene Analysis of SSIIa Associated with Grain Amylopectin Content in Barley (Hordeum vulgare L.).
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与大麦 (Hordeum vulgare L.) 谷物支链淀粉含量相关的 SSIIa 的比较作图和候选基因分析
DOI:
10.3389/fpls.2017.01531
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发表时间:
2017
影响因子:
5.6
通讯作者:
Xu R
中科院分区:
文献类型:
--
作者:
Fan X;Zhu J;Dong W;Sun Y;Lv C;Guo B;Xu R
Amylopectin concentration in barley endosperm has important effects on grain quality and end-use. In this study, quantitative trait locus (QTL) analysis together with genome-wide association studies (GWAS) were performed to identify markers linked to grain amylopectin content respectively using a doubled haploid (DH) population of 178 lines and a collection of 185 diverse barley germplasms both genotyped by genotyping-by-sequencing (GBS). A stable QTL on chromosome 7H and 11 associated single nucleotide polymorphisms (SNPs) were detected. In the co-localized region, the SSIIa (SSII-3) gene was predicted as the candidate gene. Then we isolated and characterized biparental SSIIa alleles of the DH population, investigated the expression pattern by quantitative real-time PCR (qRT-PCR), and revealed that a 33-bp deletion in exon 2 is responsible for reducing SSIIa transcript, thus resulting in a reduced amylopectin content. A sequence-based molecular marker was developed for the SSIIa allele and validated the effectivity, which would provide help for barley breeding.
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影响因子:
5.8
作者:
Bradbury, Peter J.;Zhang, Zhiwu;Buckler, Edward S.
通讯作者:
Buckler, Edward S.
影响因子:
6.1
作者:
Asare, Eric K.;Jaiswal, Sarita;Chibbar, Ravindra N.
通讯作者:
Chibbar, Ravindra N.
影响因子:
7.2
作者:
Denyer, K;Clarke, B;Smith, AM
通讯作者:
Smith, AM
影响因子:
2
作者:
Fan, X. Y.;Guo, M.;Yan, C. J.
通讯作者:
Yan, C. J.
影响因子:
--
作者:
Pang, JY;Zhou, MX;Shabala, S
通讯作者:
Shabala, S