Awais Khan, Sarah B Carey, Alicia Serrano, Huiting Zhang, Heidi Hargarten, Haley Hale, Alex Harkess, Loren Honaas
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引用次数: 0
Abstract
The apple cultivar 'Honeycrisp' has superior fruit quality traits, cold hardiness, and disease resistance, making it a popular breeding parent. However, it suffers from several physiological disorders, production, and postharvest issues. Despite several available apple genome sequences, understanding of the genetic mechanisms underlying cultivar-specific traits remains lacking. Here, we present a highly contiguous, fully phased, chromosome-level genome of 'Honeycrisp' apples, using PacBio HiFi, Omni-C, and Illumina sequencing platforms, with two assembled haplomes of 674 Mbp and 660 Mbp, and contig N50 values of 32.8 Mbp and 31.6 Mbp, respectively. Overall, 47,563 and 48,655 protein-coding genes were annotated from each haplome, capturing 96.8-97.4% complete BUSCOs in the eudicot database. Gene family analysis reveals most 'Honeycrisp' genes are assigned into orthogroups shared with other genomes, with 121 'Honeycrisp'-specific orthogroups. This resource is valuable for understanding the genetic basis of important traits in apples and related Rosaceae species to enhance breeding efforts.
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