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Genetic mapping identifies genomic regions and candidate genes for seed weight and shelling percentage in groundnut

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Relation http://oar.icrisat.org/12388/
https://www.frontiersin.org/articles/10.3389/fgene.2023.1128182/full
https://doi.org/10.3389/fgene.2023.1128182
 
Title Genetic mapping identifies genomic regions and candidate
genes for seed weight and shelling percentage in groundnut
 
Creator Gangurde, S S
Pasupuleti, J
Parmar, S
Variath, M T
Bomireddy, D
Manohar, S S
Varshney, R K
Singam, P
Guo, B
Pandey, M K
 
Subject Groundnut
Genetics and Genomics
 
Description 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 largeseeded 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.
 
Publisher Frontiers Media
 
Date 2023-03-16
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Rights cc_by
 
Identifier http://oar.icrisat.org/12388/1/Frontiers%20in%20Genetics_14_01-15_2023.pdf
Gangurde, S S and Pasupuleti, J and Parmar, S and Variath, M T and Bomireddy, D and Manohar, S S and Varshney, R K and Singam, P and Guo, B and Pandey, M K (2023) Genetic mapping identifies genomic regions and candidate genes for seed weight and shelling percentage in groundnut. Frontiers in Genetics (TSI), 14. 01-15. ISSN 1664-8021