Journal article
Development and deployment of a high-density linkage map identified quantitative trait loci for plant height in peanut (Arachis hypogaea L.)
Scientific Reports, Vol.6(1), Art. 39478
2016
Abstract
Plant height is one of the most important architecture traits in crop plants. In peanut, the genetic basis of plant height remains ambiguous. In this context, we genotyped a recombinant inbred line (RIL) population with 140 individuals developed from a cross between two peanut varieties varying in plant height, Zhonghua 10 and ICG 12625. Genotyping data was generated for 1,175 SSR and 42 transposon polymorphic markers and a high-density genetic linkage map was constructed with 1,219 mapped loci covering total map length of 2,038.75 cM i.e., accounted for nearly 80% of the peanut genome. Quantitative trait locus (QTL) analysis using genotyping and phenotyping data for three environments identified 8 negative-effect QTLs and 10 positive-effect QTLs for plant height. Among these QTLs, 8 QTLs had a large contribution to plant height that explained ≥10% phenotypic variation. Two major-effect consensus QTLs namely cqPHA4a and cqPHA4b were identified with stable performance across three environments. Further, the allelic recombination of detected QTLs proved the existence of the phenomenon of transgressive segregation for plant height in the RIL population. Therefore, this study not only successfully reported a high-density genetic linkage map of peanut and identified genomic region controlling plant height but also opens opportunities for further gene discovery and molecular breeding for plant height in peanut.
Details
- Title
- Development and deployment of a high-density linkage map identified quantitative trait loci for plant height in peanut (Arachis hypogaea L.)
- Authors/Creators
- L. Huang (Author/Creator) - Oil Crops Research InstituteX. Ren (Author/Creator) - Oil Crops Research InstituteB. Wu (Author/Creator) - Oil Crops Research InstituteX. Li (Author/Creator) - Oil Crops Research InstituteW. Chen (Author/Creator) - Oil Crops Research InstituteX. Zhou (Author/Creator) - Oil Crops Research InstituteY. Chen (Author/Creator) - Oil Crops Research InstituteM.K. Pandey (Author/Creator) - International Crops Research Institute for the Semi-Arid TropicsY. Jiao (Author/Creator) - Oil Crops Research InstituteH. Luo (Author/Creator) - Oil Crops Research InstituteY. Lei (Author/Creator) - Oil Crops Research InstituteR.K. Varshney (Author/Creator) - International Crops Research Institute for the Semi-Arid TropicsB. Liao (Author/Creator) - Oil Crops Research InstituteH. Jiang (Author/Creator) - Oil Crops Research Institute
- Publication Details
- Scientific Reports, Vol.6(1), Art. 39478
- Publisher
- Springer Nature
- Identifiers
- 991005542278807891
- Copyright
- © 2016 The Authors.
- Murdoch Affiliation
- Murdoch University
- Language
- English
- Resource Type
- Journal article
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- Collaboration types
- Domestic collaboration
- International collaboration
- Citation topics
- 3 Agriculture, Environment & Ecology
- 3.4 Crop Science
- 3.4.96 QTL
- Web Of Science research areas
- Plant Sciences
- ESI research areas
- Plant & Animal Science