Year: 2026
Type: data-paper
Abstract: Malus robusta Rehd. is widely used as an apple rootstock owing to its strong cold tolerance and desirable rootstock traits. Here, we report Haplotype-resolved, chromosome-level genome assemblies of the cultivar M. robusta, generated using an integrated strategy combining PacBio HiFi sequencing, Hi-C data, and Ultra-long ONT data. Two phased assemblies were produced, with HapA spanning 628.38 Mb and a contig N50 of 36.35 Mb, and HapB spanning 664.60 Mb with a contig N50 of 39.05 Mb. Repetitive elements accounted for 65.12% and 66.52% of the HapA and HapB genomes, respectively. A total of 49,268 and 51,070 protein-coding genes were predicted in HapA and HapB. Genome-wide synteny analysis revealed differential collinearity between the two haplotypes of M. robusta and the genomes of M. baccata and M. prunifolia, respectively. These Haplotype-resolved genome assemblies provide a comprehensive genomic resource for studies of cold tolerance-related traits, comparative genomics, and apple rootstock improvement.
Source: Scientific Data
Authors: Mingxuan Sun, Haibo Wang, Lingtong Kong, Jingyuan Zhang, Jinrong Li, Yi Zheng, Sen Wang
Institution: Beijing University of Agriculture
Language: English
Subfield: Plant Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: gold
Estimated APC paid: $2,490
Award: G2035420081
OpenAlex ID: W7165882285
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