Resequencing of 297 melon accessions reveals the genomic history of improvement and loci related to fruit traits in melon.

ABSTRACT: Domestication and improvement are two important stages in crop evolution. Melon (Cucumis melo L.) is an important vegetable crop with wide phenotypic diversity in many horticultural traits, especially fruit size, flesh thickness and aroma, which are likely the results of long-term extensive selection during its evolution. However, selective signals in domestication and improvement stages for these remarkable variations remain unclear. We resequenced 297 wild, landrace and improved melon accessions and obtained 2 045 412 high-quality SNPs. Population structure and genetic diversity analyses revealed independent and two-step selections in two subspecies of melon: ssp. melo and ssp. agrestis during melon breeding. We detected 233 (~18.35 Mbp) and 159 (~17.71 Mbp) novel potential selective sig

SUBMITTER: Liu S 

PROVIDER: S-EPMC7680547 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature