Polyphyletic domestication and inter-lineage hybridization magnified genetic diversity of cultivated melon, <i>Cucumis melo</i> L.

ABSTRACT: Melon accessions with diverse geographical origins were classified into large and small seed-types by length of seed at the boundary of 9 mm, and into five populations based on polymorphisms in the nuclear genome. They were further divided into three maternal lineages, Ia, Ib, and Ic, by polymorphisms in the chloroplast genome. By combining these three classifications, the Europe/US subsp. melo and the East Asian subsp. agrestis were characterized as [large seed, Ib, PopA1 or A2] and [small seed, Ia, PopB1 or B2], respectively, indicating nearly perfect divergence. In South Asia, in addition to the Europe/US and East Asian types, recombinant types between the two types were detected and accounted for 34.8% of South Asian melon. The finding of such an intermixed structure of g

SUBMITTER: Tanaka K 

PROVIDER: S-EPMC12457790 | biostudies-literature | 2025 Jun

REPOSITORIES: biostudies-literature