Haplotype-resolved genome assembly and genome-wide association study identifies the candidate gene closely related to sugar content and tuber yield in <i>Solanum tuberosum</i>.

ABSTRACT: As an important noncereal food crop grown worldwide, the genetic improvement of potato in tuber yield and quality is largely constrained due to the lacking of a high-quality reference genome and understanding of the regulatory mechanism underlying the formation of superior alleles. Here, a chromosome-scale haplotype-resolved genome assembled from an anther-cultured progeny of 'Ningshu 15', a tetraploid variety featured by its high starch content and drought resistance was presented. The assembled genome size was 1.653 Gb, with a contig N50 of approximately 1.4 Mb and a scaffold N50 of 61 Mb. The long terminal repeat assembly index score of the two identified haplotypes of 'Ningshu 15' was 11.62 and 11.94, respectively. Comparative genomic analysis revealed that positive selection occurred

SUBMITTER: Gong L 

PROVIDER: S-EPMC12038253 | biostudies-literature | 2025 Jun

REPOSITORIES: biostudies-literature