Journal article
Identification of main effect and epistatic quantitative trait loci for morphological and yield-related traits in peanut (Arachis hypogaea L.)
Molecular breeding, Vol.38(1), pp.1-12
2018
Abstract
An effort was made in the present study to identify the main effect and epistatic quantitative trait locus (QTL) for the morphological and yield-related traits in peanut. A recombinant inbred line (RIL) population derived from TAG 24 × GPBD 4 was phenotyped in seven environments at two locations. QTL analysis with available genetic map identified 62 main-effect QTLs (M-QTLs) for ten morphological and yield-related traits with the phenotypic variance explained (PVE) of 3.84–15.06%. Six major QTLs (PVE > 10%) were detected for PLHT, PPP, YPP, and SLNG. Stable M-QTLs appearing in at least two environments were detected for PLHT, LLN, YPP, YKGH, and HSW. Five M-QTLs governed two traits each, and 16 genomic regions showed co-localization of two to four M-QTLs. Intriguingly, a major QTL reported to be linked to rust resistance showed pleiotropic effect for yield-attributing traits like YPP (15.06%, PVE) and SLNG (13.40%, PVE). Of the 24 epistatic interactions identified across the traits, five interactions involved six M-QTLs. Three interactions were additive × additive and remaining two involved QTL × environment (QE) interactions. Only one major M-QTL governing PLHT showed epistatic interaction. Overall, this study identified the major M-QTLs for the important productivity traits and also described the lack of epistatic interactions for majority of them so that they can be conveniently employed in peanut breeding.
Details
- Title
- Identification of main effect and epistatic quantitative trait loci for morphological and yield-related traits in peanut (Arachis hypogaea L.)
- Authors/Creators
- Yogendra Khedikar - International Crops Research Institute for the Semi-Arid TropicsManish K. Pandey - International Crops Research Institute for the Semi-Arid TropicsV. Sujay - University of Agricultural Sciences, DharwadSube Singh - International Crops Research Institute for the Semi-Arid TropicsSpurthi N. Nayak - International Crops Research Institute for the Semi-Arid TropicsHenry W. Klein-Gebbinck - Agriculture and Agri-Food CanadaCholin Sarvamangala - Plant (United States)Ganapati Mukri - University of Agricultural Sciences, DharwadVanika Garg - International Crops Research Institute for the Semi-Arid TropicsHari D. Upadhyaya - International Crops Research Institute for the Semi-Arid TropicsH. L. Nadaf - University of Agricultural Sciences, DharwadM. V. C. Gowda - University of Agricultural Sciences, DharwadRajeev K. Varshney - International Crops Research Institute for the Semi-Arid TropicsRamesh S. Bhat - University of Agricultural Sciences, Dharwad
- Publication Details
- Molecular breeding, Vol.38(1), pp.1-12
- Publisher
- Springer Nature
- Number of pages
- 12
- Grant note
- World Bank - Government of Karnataka (GoK), India; The World Bank India National Funds for Basic Strategic and Frontier Application Research in Agriculture (NFBSFARA) of Indian Council of Agricultural Research (ICAR), New Delhi, India
- Identifiers
- 991005609376607891
- Copyright
- © Springer Nature 2017
- Murdoch Affiliation
- Food Futures Institute; State Agricultural Biotechnology Centre; Centre for Crop and Food Innovation
- Language
- English
- Resource Type
- Journal article
UN Sustainable Development Goals (SDGs)
This output has contributed to the advancement of the following goals:
Metrics
31 Record Views
InCites Highlights
These are selected metrics from InCites Benchmarking & Analytics tool, related to this output
- 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
- Agronomy
- Genetics & Heredity
- Horticulture
- Plant Sciences
- ESI research areas
- Plant & Animal Science