ï»¿Phylogenomics reveal Populusgonggaensis as a hybrid between P.lasiocarpa and P.cathayana (Salicaceae).

Du, Wenyan; Wang, Yachao; Xie, Dajun; Li, Enze; Bai, Yuran; Shang, Ce; Zhang, Zhixiang

ï»¿Phylogenomics reveal Populusgonggaensis as a hybrid between P.lasiocarpa and P.cathayana (Salicaceae).

Du, Wenyan; Wang, Yachao; Xie, Dajun; Li, Enze; Bai, Yuran; Shang, Ce; Zhang, Zhixiang.

Afiliación

Du W; Laboratory of Systematic Evolution and Biogeography of Woody Plants, School of Ecology and Nature Conservation, Beijing Forestry University, Beijing 100083, China Beijing Forestry University Beijing China.
Wang Y; School of Life Science, Fudan University, Shanghai 200433, China Fudan University Shanghai China.
Xie D; Sichuan Academy of Forestry, Chengdu 610000, China Sichuan Academy of Forestry Chengdu China.
Li E; Laboratory of Systematic Evolution and Biogeography of Woody Plants, School of Ecology and Nature Conservation, Beijing Forestry University, Beijing 100083, China Beijing Forestry University Beijing China.
Bai Y; Laboratory of Systematic Evolution and Biogeography of Woody Plants, School of Ecology and Nature Conservation, Beijing Forestry University, Beijing 100083, China Beijing Forestry University Beijing China.
Shang C; Laboratory of Systematic Evolution and Biogeography of Woody Plants, School of Ecology and Nature Conservation, Beijing Forestry University, Beijing 100083, China Beijing Forestry University Beijing China.
Zhang Z; Laboratory of Systematic Evolution and Biogeography of Woody Plants, School of Ecology and Nature Conservation, Beijing Forestry University, Beijing 100083, China Beijing Forestry University Beijing China.

PhytoKeys ; 237: 161-177, 2024.

Article en En | MEDLINE | ID: mdl-38298498

ABSTRACT

ABSTRACT

High levels of intra-specific polymorphism and frequent hybridisation make it difficult to define species and correctly apply their scientific names. Populus L. is a challenging genus with plentiful natural and artificial hybrids. This study is a part of the project 'Flora of Pan-Himalaya' and aims to determine the taxonomic identity of P.gonggaensis N. Chao & J.R. He and to find out whether it is of hybrid origin. Whole-genome sequencing data were obtained from 57 samples. The SNP matrix was developed for phylogenetic reconstruction, ABBA-BABA statistics, PCA and ADMIXTURE analysis. The results indicate that P.gonggaensis is a spontaneous hybrid between P.lasiocarpa and P.cathayana. This study points out the importance of SNP data and comprehensive analyses for discovering the potential interspecific hybridisation and clarifies the usage of the name. In addition, the lectotype of P.gonggaensis was designated.

Palabras clave

Populusgonggaensis; hybrid origin; whole genome resequencing

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