Journal article
Characterization of heterosis and genomic prediction‐based establishment of heterotic patterns for developing better hybrids in pigeonpea
The Plant Genome, Vol.14(3), Art. e20125
2021
Abstract
Whole-genome resequencing (WGRS) of 396 lines, consisting of 104 hybrid parental lines and 292 germplasm lines, were used to study the molecular basis of mid-parent heterosis (MPH) and to identify complementary heterotic patterns in pigeonpea [Cajanus cajan (L.) Millsp.] hybrids. The lines and hybrids were assessed for yield and yield-related traits in multiple environments. Our analysis showed positive MPH values in 78.6% of hybrids, confirming the potential of hybrid breeding in pigeonpea. By using genome-wide prediction and association mapping approaches, we identified 129 single nucleotide polymorphisms and 52 copy number variations with significant heterotic effects and also established a high-yielding heterotic pattern in pigeonpea. In summary, our study highlights the role of WGRS data in the study and use of heterosis in crops where hybrid breeding is expected to boost selection gain in order to ensure global food security.
Details
- Title
- Characterization of heterosis and genomic prediction‐based establishment of heterotic patterns for developing better hybrids in pigeonpea
- Authors/Creators
- R.K. Saxena (Author/Creator) - International Crops Research Institute for the Semi-Arid TropicsY. Jiang (Author/Creator) - Leibniz-Institut für Pflanzengenetik und Kulturpflanzenforschung (IPK)A.W. Khan (Author/Creator) - International Crops Research Institute for the Semi-Arid TropicsY. Zhao (Author/Creator) - Leibniz-Institut für Pflanzengenetik und Kulturpflanzenforschung (IPK)V. Kumar Singh (Author/Creator)A. Bohra (Author/Creator) - Indian Institute of Pulses ResearchM. Sonappa (Author/Creator) - University of Agricultural Sciences RaichurA. Rathore (Author/Creator) - International Crops Research Institute for the Semi-Arid TropicsC.V.S. Kumar (Author/Creator) - Professor Jayashankar Telangana State Agricultural UniversityK. Saxena (Author/Creator) - Al Mudaredh, Al Ain, Abu Dhabi, United Arab EmiratesJ. Reif (Author/Creator) - Leibniz-Institut für Pflanzengenetik und Kulturpflanzenforschung (IPK)R.K. Varshney (Author/Creator) - International Crops Research Institute for the Semi-Arid Tropics
- Publication Details
- The Plant Genome, Vol.14(3), Art. e20125
- Publisher
- Wiley Periodicals LLC on behalf of Crop Science Society of America
- Identifiers
- 991005540367407891
- Copyright
- © 2021 The Authors.
- Murdoch Affiliation
- Food Futures Institute; Centre for Crop and Food Innovation; 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
- 3.4.96 QTL
- Web Of Science research areas
- Genetics & Heredity
- Plant Sciences
- ESI research areas
- Plant & Animal Science