Haplotype-resolved genome assembly provides insights into evolutionary history of the Actinidia arguta tetraploid.

ABSTRACT: Actinidia arguta, known as hardy kiwifruit, is a widely cultivated species with distinct botanical characteristics such as small and smooth-fruited, rich in beneficial nutrients, rapid softening and tolerant to extremely low temperatures. It contains the most diverse ploidy types, including diploid, tetraploid, hexaploid, octoploid, and decaploid. Here we report a haplotype-resolved tetraploid genome (A. arguta cv. 'Longcheng No.2') containing four haplotypes, each with 40,859, 41,377, 39,833 and 39,222 protein-coding genes. We described the phased genome structure, synteny, and evolutionary analyses to identify and date possible WGD events. K_s calculations for both allelic and paralogous genes pairs throughout the assembled haplotypic individuals showed its tetraploidization is

SUBMITTER: Zhang F 

PROVIDER: S-EPMC10845759 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature