Show simple item record

Dissecting the genetic basis of resistance to soybean cyst nematode combining linkage and association mapping

Author: Ying-hui Li
Author: Xue-hui Shi
Author: Huihui Li
Author: Reif, J.C.
Author: Jia-jun Wang
Author: Zhang-xiong Liu
Author: Sang He
Author: Bai-shuang Yu
Author: Li-Juan Qiu
Year: 2016
ISSN: 1940-3372
Abstract: A set of 585 informative single-nucleotide polymorphism (SNP) loci was used to genotype both a panel of diverse accessions and a set of recombinant inbred lines (RILs) bred from the cross Zhongpin03-5373 (ZP; resistant to SCN) × Zhonghuang13 (ZH; susceptible). The SNP loci are mostly sited within genic sequence in regions of the soybean [Glycine max (L.) Merr.] genome thought to harbor genes determining resistance to the soybean cyst nematode (SCN, Heterodera glycines Ichinohe). The three strongest quantitative trait nucleotides (QTNs) identified by association mapping (AM) involved the genes Glyma18 g02590 (a component of the multigene locus rhg1-b), Glyma11 g35820 and Glyma11 g35810 (an rhg1-b paralog), as well as some other loci with smaller effects. The linkage mapping (LM) analysis performed using the RILs revealed two putative quantitative trait loci (QTL): one mapping to rhg1-b and the other to an rhg1-b paralog; both of these loci were also identified by AM. The former locus explained 25.5% of the phenotypic variance for SCN resistance and the latter 5.8%. In combination, the two major loci acted nonadditively, providing a high level of SCN resistance.
Format: PDF
Language: English
Publisher: Crop Science Society of America
Copyright: CIMMYT manages Intellectual Assets as International Public Goods. The user is free to download, print, store and share this work. In case you want to translate or create any other derivative work and share or distribute such translation/derivative work, please contact indicating the work you want to use and the kind of use you intend; CIMMYT will contact you with the suitable license for that purpose.
Type: Article
Place of Publication: Madison, Wis, U.S.
Pages: 1-11
Issue: 2
Volume: 9
DOI: 10.3835/plantgenome2015.04.0020
Related Datasets:
Journal: The Plant Genome

Files in this item


This item appears in the following Collection(s)

  • Genetic Resources
    Genetic Resources including germplasm collections, wild relatives, genotyping, genomics, and IP

Show simple item record