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Journal article
Genetic mapping identifies genomic regions and candidate genes for seed weight and shelling percentage in groundnut
Frontiers in genetics, Vol.14, 1128182
2023
PMID: 37007937
Abstract
Seed size is not only a yield-related trait but also an important measure to determine the commercial value of groundnut in the international market. For instance, small size is preferred in oil production, whereas large-sized seeds are preferred in confectioneries. In order to identify the genomic regions associated with 100-seed weight (HSW) and shelling percentage (SHP), the recombinant inbred line (RIL) population (Chico × ICGV 02251) of 352 individuals was phenotyped for three seasons and genotyped with an Axiom_
Arachis
array containing 58K SNPs. A genetic map with 4199 SNP loci was constructed, spanning a map distance of 2708.36 cM. QTL analysis identified six QTLs for SHP, with three consistent QTLs on chromosomes A05, A08, and B10. Similarly, for HSW, seven QTLs located on chromosomes A01, A02, A04, A10, B05, B06, and B09 were identified.
BIG SEED
locus and
spermidine synthase
candidate genes associated with seed weight were identified in the QTL region on chromosome B09. Laccase, fibre protein, lipid transfer protein, senescence-associated protein, and disease-resistant NBS-LRR proteins were identified in the QTL regions associated with shelling percentage. The associated markers for major-effect QTLs for both traits successfully distinguished between the small- and large-seeded RILs. QTLs identified for HSW and SHP can be used for developing potential selectable markers to improve the cultivars with desired seed size and shelling percentage to meet the demands of confectionery industries.
Details
- Title
- Genetic mapping identifies genomic regions and candidate genes for seed weight and shelling percentage in groundnut
- Authors/Creators
- Sunil S. Gangurde - International Crops Research Institute for the Semi-Arid TropicsJanila Pasupuleti - , , , , , , , , , , , , , ,Sejal Parmar - International Crops Research Institute for the Semi-Arid TropicsMurali T. Variath - 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 UniversityBaozhu Guo - , , , , , , , , , , , , , ,Manish K. Pandey - International Crops Research Institute for the Semi-Arid Tropics
- Publication Details
- Frontiers in genetics, Vol.14, 1128182
- Publisher
- Frontiers Media S.A
- Identifiers
- 991005601868807891
- Copyright
- © 2023 Gangurde et al.
- Murdoch Affiliation
- Centre for Crop and Food Innovation; State Agricultural Biotechnology Centre
- Language
- English
- Resource Type
- Journal article
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- Citation topics
- 3 Agriculture, Environment & Ecology
- 3.4 Crop Science
- 3.4.96 QTL
- Web Of Science research areas
- Genetics & Heredity
- ESI research areas
- Molecular Biology & Genetics