Multi‐omics analyses shed lights on the evolution and fruit development of Chinese raspberries ( Rubus spp.)

作者：Ticao Zhang, Dengli Luo, Guodong Li, Huanchong Wang, Qiang Cao, Rengang Zhang, Yuran Li, Yingan Zhu, Chunhua Ma, Aaron Liston, Hang Sun, Qin Qiao · 发表于：Journal of Integrative Plant Biology · 年份：2025 · DOI：10.1111/jipb.70052 · 被引用次数：1 · 研究领域：Berry genetics and cultivation research、Plant Gene Expression Analysis、Horticultural and Viticultural Research

Rubus (raspberries and blackberries) is a large genus of over 700 species well known for its taxonomic challenges. Many of its species hold significant economic value as important edible and medicinal plants. Here, near-complete genomes for four wild diploid raspberry species were assembled, including R. ellipticus, R. niveus, as well as the highly heterozygous diploid red raspberry (R. idaeus), and its closely related species R. sachalinensis. Pan-genome analysis of Rubus identified 10,243 core gene families (64% of total), and highlights expansions of flavonoid/terpenoid pathways in Rubus, correlating with fruit bioactive compound diversity. Our discovery of shared ancestral components between R. idaeus and R. sachalinensis subgenomes provides evidence for their homoploid hybrid origin. The centromere sequence characteristics could serve as markers for subgenome assignment in R. idaeus and R. sachalinensis. Moreover, population genomic studies of 125 accessions from ca. 80 species uncovered widespread genetic introgression, particularly in red raspberries, with centromeric haplotype signatures tracing ancestral contributions to cultivated varieties. By integrating metabolome and transcriptome data, we explore the fruit quality regulatory network of Chinese raspberries. We identified a glutathione S-transferase gene that may inhibit the successful transport of anthocyanins into the vacuole and appears to be a limiting factor for the anthocyanin pigmentation in R. ellipticus ...