Phylotranscriptomic Analyses Resolve Evolutionary History of Eremopyrum (Triticeae; Poaceae)

被引：0

作者：

Fan, Shu-Qi ^{[1
,2
]}

Yan, Hao ^{[3
]}

Zhang, Yue ^{[3
]}

Ma, Xiao ^{[2
]}

Zhao, Jun-Ming ^{[2
]}

Zhang, Hai-Qin ^{[2
]}

Zhou, Yong-Hong ^{[3
]}

Fan, Xing ^{[3
]}

Wen, Yong-Xian ^{[1
]}

Sha, Li-Na ^{[2
]}

机构：

[1] Fujian Agr & Forestry Univ, Coll Comp & Informat Sci, Fuzhou, Fujian, Peoples R China

[2] Sichuan Agr Univ, Coll Grassland Sci & Technol, Chengdu, Sichuan, Peoples R China

[3] Sichuan Agr Univ, Triticeae Res Inst, Chengdu, Sichuan, Peoples R China

来源：

ECOLOGY AND EVOLUTION | 2025年 / 15卷 / 02期

基金：

中国国家自然科学基金;

关键词：

<italic>Eremopyrum</italic>; hybridization; introgression; polyploid; speciation; COPY NUCLEAR ACC1; PHYLOGENETIC ANALYSIS; GENOME ORIGIN; INTROGRESSION; POLYPLOIDY; TOOL;

D O I：

10.1002/ece3.70840

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

Disentangling the phylogenetic relationship of polyploid species is essential for understanding how such polyploid species evolved following their origin. To investigate the speciation and evolutionary history of Eremopyrum, we analyzed 36 transcriptomes from 9 polyploid accessions of Eremopyrum and 27 diploid taxa representing 12 basic genomes in Triticeae. Phylogenetic reconstruction, divergence time, and introgression event demonstrated that (1) Eremopyrum and Agropyron shared a common ancestor; (2) Eremopyrum has undergone ongoing evolutionary diversification since its origin in Late Miocene; (3) the diploid E. triticeum and E. distans were the genome donors of the tetraploid species of Eremopyrum; (4) both Eremopyrum and Agropyron contribute to the nonmonophyletic origin of tetraploid E. orientale via introgression events. Our results shed new light on our understanding of the diversity and ecological adaptation of the species in Eremopyrum.

引用

页数：8

共 49 条

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