Genetic mapping and quantitative trait loci analysis for disease resistance using F 2 and F 5 Generation‐based genetic maps derived from ‘Tifrunner’ × ‘GT‐C20’ in peanut

H. Wang; M.K. Pandey; L. Qiao; H. Qin; A.K. Culbreath; G. He; R.K. Varshney; B.T. Scully; B. Guo

doi:10.3835/plantgenome2013.05.0018

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Genetic mapping and quantitative trait loci analysis for disease resistance using F 2 and F 5 Generation‐based genetic maps derived from ‘Tifrunner’ × ‘GT‐C20’ in peanut

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Genetic mapping and quantitative trait loci analysis for disease resistance using F 2 and F 5 Generation‐based genetic maps derived from ‘Tifrunner’ × ‘GT‐C20’ in peanut

H. Wang, M.K. Pandey, L. Qiao, H. Qin, A.K. Culbreath, G. He, R.K. Varshney, B.T. Scully and B. Guo

The Plant Genome, Vol.6(3), pp.1-10

2013

DOI: https://doi.org/10.3835/plantgenome2013.05.0018

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Abstract

One mapping population derived from Tifrunner × GT-C20 has shown great potential in developing a high density genetic map and identifying quantitative trait loci (QTL) for important disease resistance, tomato spotted wilt virus (TSWV) and leaf spot (LS). Both F2 and F5 generation-based genetic maps were previously constructed with 318 and 239 marker loci, respectively. Higher map density could be achieved with the F2 map (5.3 cM per locus) as compared to the F5 (5.7 cM per locus). Quantitative trait loci analysis using multi-environment phenotyping data from F8 and higher generations for disease resistance identified 54 QTL in the F2 map including two QTL for thrips (12.14–19.43% phenotypic variation explained [PVE]), 15 for TSWV (4.40–34.92% PVE), and 37 for LS (6.61–27.35% PVE). Twenty-three QTL could be identified in the F5 map including one QTL for thrips (5.86% PVE), nine for TSWV (5.20–14.14% PVE), and 13 for LS (5.95–21.45% PVE). Consistent QTL identified in each map have shown higher phenotypic variance than nonconsistent QTL. As expected, the number of QTL and their estimates of phenotypic variance were lower in the F5 map. This is the first QTL study reporting novel QTL for thrips, TSWV, and LS in peanut (Arachis hypogaea L.), and therefore, future studies will be conducted to refine these QTL.

Details

Title: Genetic mapping and quantitative trait loci analysis for disease resistance using F 2 and F 5 Generation‐based genetic maps derived from ‘Tifrunner’ × ‘GT‐C20’ in peanut
Authors/Creators: H. Wang (Author/Creator) - Fujian Agriculture and Forestry University
M.K. Pandey (Author/Creator) - International Crops Research Institute for the Semi-Arid Tropics
L. Qiao (Author/Creator) - Qingdao Agricultural University
H. Qin (Author/Creator) - Hubei Academy of Agricultural Sciences
A.K. Culbreath (Author/Creator) - Plant (United States)
G. He (Author/Creator) - Tuskegee University
R.K. Varshney (Author/Creator) - International Crops Research Institute for the Semi-Arid Tropics
B.T. Scully (Author/Creator) - Agricultural Research Service
B. Guo (Author/Creator) - Agricultural Research Service
Publication Details: The Plant Genome, Vol.6(3), pp.1-10
Publisher: Wiley Periodicals LLC on behalf of Crop Science Society of America
Identifiers: 991005540792007891
Copyright: © 2013 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: Genetics & Heredity; Plant Sciences
ESI research areas: Plant & Animal Science