文献类型：期刊文献

英文题名：Multi-Approach Unveils Potential Gene Introgression of Oil Camellias

作者：Fan, Menglong[1,2] Song, Zhixin[1] Zhang, Ying[1] Li, Xinlei[1] Sun, Zhenyuan[2]

第一作者：Fan, Menglong

通信作者：Zhang, Y[1]

机构：[1]Chinese Acad Forestry, Res Inst Subtrop Forestry, Hangzhou 311400, Peoples R China;[2]Chinese Acad Forestry, Res Inst Forestry, Beijing 100000, Peoples R China

年份：2024

卷号：10

期号：12

外文期刊名：HORTICULTURAE

收录：;Scopus(收录号：2-s2.0-85213381097);WOS:【SCI-EXPANDED(收录号:WOS:001383866100001)】；

基金：The research was supported by the Zhejiang Science and Technology Major Program on Agricultural New Variety Breeding (2021C02071-2).

语种：英文

外文关键词：phylogenomic; reticulation evolution; Camellia; anthocyanin

摘要：The complex phylogenetic relationship of polyploid species provides an opportunity for a comprehensive study of gene introgression. Oil camellias refer to a class of important woody oil plant in the camellia genus, including octoploid, hexaploid, tetraploid, and diploid plants, but the phylogeny relationship of these species remains poorly investigated. Here, based on multiple types of evidence, including phylogenetic conflict, gene flow analysis, and representative metabolite, we reconstructed the phylogenetic relationship of oil camellias. Camellia shensiensis and C. grijsii formed a distinct branch. Phylogenetic conflict suggested that hexaploid C. oleifera probably originated from hybridization and clustered with diploid C. kissi and tetraploid C. meiocarpa. Tetraploid C. confusa probably originated from crossing the ancestor of C. kissi and C. brevistyla, and C. brevistyla probably was the maternal progenitor of hexaploid C. sasanqua. Furthermore, the composition of anthocyanin in tender leaves showed a strong correlation with phylogenetic distinctions. This study proves the feasibility of using iconic metabolic components to solve phylogenetic relationships and lays a foundation for analyzing genetic breeding and utilizing oil camellia resources.