A SNP-based Linkage Mapping Revealed a Mutant-Origin Major Quantitative Trait Locus for Seed Size in A05 Chromosome of Groundnut (arachis Hypogaea L.)

Seed size is directly involved in determining the yield of groundnut. Here, we report the identification of a main QTL for large seed size using a F2 population of ‘TG 89 × ICGV 15007’. A total of 122 F2 individuals were genotyped with a total 345 markers which included 297 of ddRAD-seq SNP, 37 AhMITE, 9 SSR and 2 gene specific markers to construct a genetic linkage map spanning 3891.3 cM. QTL analysis revealed two major QTLs, one on linkage group A05 explaining 18.07