Chromosome-scale genome assembly of a natural diploid kiwifruit (Actinidia chinensis var. deliciosa).

ABSTRACT: The most commercialized kiwifruit, Actinidia chinensis var. deliciosa (Acd), is an allohexaploid (2n = 6x = 174), making high-quality assemblage genome challenging. We previously discovered a rare naturally occurring diploid Acd plant. Here, chromosome-level de novo genome assembly for this diploid Acd was reported, reaching approximately 621.98 Mb in length with contig and scaffold N50 values of 10.08 and 21.09 Mb, respectively, 99.66% of the bases anchored to 29 pseudochromosomes, and 38,990 protein-coding genes and 42.29% repetitive elements annotated. The divergence time of A. chinensis cv. 'Red5' and 'Hongyang' (11.1-27.7 mya) was more recent compared with the divergence time of them and Acd (19.9-41.2 mya), with the divergence time of A. eriantha cv. 'White' being the earliest (22.9-

SUBMITTER: Xia H 

PROVIDER: S-EPMC9929245 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature