Genetic mapping of tolerance to iron deficiency chlorosis in peanut (Arachis hypogaea L.)

A.D. Tayade; B.N. Motagi; M.P. Jadhav; A.S. Nadaf; R.V. Koti; S.S. Gangurde; V. Sharma; R.K. Varshney; M.K. Pandey; R.S. Bhat

doi:10.1007/s10681-022-02996-z

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Genetic mapping of tolerance to iron deficiency chlorosis in peanut (Arachis hypogaea L.)

Journal article

Peer reviewed

Genetic mapping of tolerance to iron deficiency chlorosis in peanut (Arachis hypogaea L.)

A.D. Tayade, B.N. Motagi, M.P. Jadhav, A.S. Nadaf, R.V. Koti, S.S. Gangurde, V. Sharma, R.K. Varshney, M.K. Pandey and R.S. Bhat

Euphytica, Vol.218(4), Art. 46

2022

DOI: https://doi.org/10.1007/s10681-022-02996-z

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Abstract

Iron deficiency chlorosis (IDC) under calcareous and alkaline soils is a significant abiotic stress affecting the growth and yield of peanut. In this study, the genomic regions governing IDC tolerance were mapped using a recombinant inbred line (RIL) population derived from TMV 2 (susceptible to IDC) and TMV 2-NLM (tolerant to IDC), which was phenotyped during the rainy seasons of 2019 and 2020 in the iron-deficient calcareous plots. The best linear unbiased prediction (BLUP) values for IDC tolerance traits like visual chlorotic rating (VCR), and SPAD chlorophyll meter reading (SCMR) were used for QTL analysis along with a genetic map carrying 700 GBS-derived SNP, AhTE and SSR markers. In total, 11 and 12 main-effect QTLs were identified for VCR and SCMR, respectively. Among them three QTLs were major with the phenotypic variance explained (PVE) of 10.3–34.4% for VCR, and two QTL were major for SCMR with PVE of 11.5–11.7%. A region (159.3–178.3 cM) on chromosome Ah13 carrying two QTLs (one each for VCR and SCMR) was consistent with the previous report. A SNP marker, Ah14_138037990 identified from single marker analysis for VCR was located in the intronic region of the gene Arahy.QA0C1, which is important for protein-binding. Overall, this study identified new QTLs and also validated QTL for IDC tolerance. These genomic resources could be useful for genomics-assisted breeding of peanut for IDC tolerance.

Details

Title: Genetic mapping of tolerance to iron deficiency chlorosis in peanut (Arachis hypogaea L.)
Authors/Creators: A.D. Tayade (Author/Creator) - University of Agricultural Sciences
B.N. Motagi (Author/Creator) - University of Agricultural Sciences
M.P. Jadhav (Author/Creator) - University of Agricultural Sciences
A.S. Nadaf (Author/Creator) - University of Agricultural Sciences
R.V. Koti (Author/Creator) - University of Agricultural Sciences
S.S. Gangurde (Author/Creator) - International Crops Research Institute for the Semi-Arid Tropics
V. Sharma (Author/Creator) - International Crops Research Institute for the Semi-Arid Tropics
R.K. Varshney (Author/Creator) - International Crops Research Institute for the Semi-Arid Tropics
M.K. Pandey (Author/Creator) - International Crops Research Institute for the Semi-Arid Tropics
R.S. Bhat (Author/Creator) - University of Agricultural Sciences
Publication Details: Euphytica, Vol.218(4), Art. 46
Publisher: Kluwer Academic Publishers
Identifiers: 991005546330707891
Murdoch Affiliation: Centre for Crop and Food Innovation; Food Futures Institute; State Agricultural Biotechnology Centre
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; 3.4.1474 Micronutrient Interactions
Web Of Science research areas: Agronomy; Horticulture; Plant Sciences
ESI research areas: Plant & Animal Science