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Journal article
Genetic mapping identified major main‐effect and three co‐localized quantitative trait loci controlling high iron and zinc content in groundnut
The plant genome, Vol.16(4), e20361
2023
Abstract
Malnutrition is a major challenge globally, and groundnut is a highly nutritious self-pollinated legume crop blessed with ample genomic resources, including the routine deployment of genomic-assisted breeding. This study aimed to identify genomic regions and candidate genes for high iron (Fe) and zinc (Zn) content, utilizing a biparental mapping population (ICGV 00440 × ICGV 06040;). Genetic mapping and quantitative trait locus (QTL) analysis (474 mapped single-nucleotide polymorphism loci; 1536.33 cM) using 2 seasons of phenotypic data together with genotypic data identified 5 major main-effect QTLs for Fe content. These QTLs exhibited log-of-odds (LOD) scores ranging from 6.5 to 7.4, explaining phenotypic variation (PVE) ranging from 22% (qFe-Ah01) to 30.0% (qFe-Ah14). Likewise, four major main effect QTLs were identified for Zn content, with LOD score ranging from 4.4 to 6.8 and PVE ranging from 21.8% (qZn-Ah01) to 32.8% (qZn-Ah08). Interestingly, three co-localized major and main effect QTLs (qFe-Ah01, qZn-Ah03, and qFe-Ah11) were identified for both Fe and Zn contents. These genomic regions harbored key candidate genes, including zinc/iron permease transporter, bZIP transcription factor, and vacuolar iron transporter which likely play pivotal roles in the accumulation of Fe and Zn contents in seeds. The findings of this study hold potential for fine mapping and diagnostic marker development for high Fe and Zn contents in groundnut.
Details
- Title
- Genetic mapping identified major main‐effect and three co‐localized quantitative trait loci controlling high iron and zinc content in groundnut
- Authors/Creators
- Sejal Parmar - International Crops Research Institute for the Semi-Arid TropicsPasupuleti Janila - International Crops Research Institute for the Semi-Arid TropicsSunil S. Gangurde - International Crops Research Institute for the Semi-Arid TropicsMurali T. Variath - International Crops Research Institute for the Semi-Arid TropicsVinay Sharma - International Crops Research Institute for the Semi-Arid TropicsDeekshitha Bomireddy - International Crops Research Institute for the Semi-Arid TropicsSurendra S. Manohar - International Crops Research Institute for the Semi-Arid TropicsRajeev K. Varshney - Murdoch University, Food Futures InstitutePrashant Singam - Osmania UniversityManish K. Pandey - International Crops Research Institute for the Semi-Arid Tropics
- Publication Details
- The plant genome, Vol.16(4), e20361
- Publisher
- Wiley Periodicals LLC on behalf of Crop Science Society of America.
- Identifiers
- 991005593759307891
- Copyright
- © 2023 The Authors.
- Murdoch Affiliation
- Centre for Crop and Food Innovation
- 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
- Genetics & Heredity
- Plant Sciences
- ESI research areas
- Plant & Animal Science