High-resolution genome assembly and population genetic study of the endangered maple <i>Acer pentaphyllum</i> (Sapindaceae): implications for conservation strategies.

ABSTRACT: Acer pentaphyllum Diels (Sapindaceae), a highly threatened maple endemic to the dry-hot valleys of the Yalong River in western Sichuan, China, represents a valuable resource for horticulture and conservation. This study presents the first chromosomal-scale genome assembly of A. pentaphyllum (~626 Mb, 2n = 26), constructed using PacBio HiFi and Hi-C sequencing technologies. Comparative genomic analyses revealed significant recent genomic changes through rapid amplification of transposable elements, particularly long terminal repeat retrotransposons, coinciding with the dramatic climate change during recent uplift of the Hengduan Mountains. Genes involved in photosynthesis, plant hormone signal transduction, and plant-pathogen interaction showed expansion and/or positive

SUBMITTER: Li X 

PROVIDER: S-EPMC11891484 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature