Dissecting the Genetic Basis of Resistance to Soybean Cyst Nematode Combining Linkage and Association Mapping
| Autor: | Sang He, Huihui Li, Shi Xuehui, Bai-shuang Yu, Jochen C. Reif, Lijuan Qiu, Zhangxiong Liu, Jia-jun Wang, Yinghui Li |
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| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
0301 basic medicine lcsh:QH426-470 Nematoda Genetic Linkage Quantitative Trait Loci Soybean cyst nematode Locus (genetics) Plant Science Quantitative trait locus Biology lcsh:Plant culture 01 natural sciences Polymorphism Single Nucleotide 03 medical and health sciences Inbred strain Genetic linkage Genotype Genetics Animals lcsh:SB1-1110 Association mapping Gene Genetic Association Studies Disease Resistance Chromosome Mapping biology.organism_classification lcsh:Genetics 030104 developmental biology Soybeans Agronomy and Crop Science 010606 plant biology & botany |
| Zdroj: | The Plant Genome, Vol 9, Iss 2 (2016) |
| ISSN: | 1940-3372 |
| Popis: | 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 [ (L.) Merr.] genome thought to harbor genes determining resistance to the soybean cyst nematode (SCN, Ichinohe). The three strongest quantitative trait nucleotides (QTNs) identified by association mapping (AM) involved the genes (a component of the multigene locus ), and (an 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 and the other to an 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. |
| Databáze: | OpenAIRE |
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