J 2023

Phylogenomics and rapid diversification of the genus <i>Eutrema</i> on the Qinghai-Tibet Plateau and adjacent regions

WANG, Yi, Guo-Qian HAO, Xinyi GUO, Dan ZHANG, Quan-Jun HU et. al.

Základní údaje

Originální název

Phylogenomics and rapid diversification of the genus <i>Eutrema</i> on the Qinghai-Tibet Plateau and adjacent regions

Autoři

WANG, Yi, Guo-Qian HAO, Xinyi GUO (156 Čína, domácí), Dan ZHANG, Quan-Jun HU a Jian-Quan LIU

Vydání

Journal of Systematics and Evolution, Hoboken, Wiley, 2023, 1674-4918

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10611 Plant sciences, botany

Stát vydavatele

Spojené státy

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Impakt faktor

Impact factor: 3.700 v roce 2022

Kód RIV

RIV/00216224:14740/23:00133951

Organizační jednotka

Středoevropský technologický institut

DOI

UT WoS

000782012000001

Klíčová slova anglicky

Eutrema; hybridization; polyploidy; species diversification; whole-genome phylogeny

Štítky

Příznaky

Mezinárodní význam, Recenzováno
Změněno: 9. 10. 2024 13:28, Mgr. Eva Dubská

Anotace

V originále

Both geographic isolation and polyploidization are assumed to play an important role in driving species diversification. However, this is rarely illustrated through phylogenomic analyses. The genus Eutrema (Brassicaceae), which also includes the salt-resistant species, are distributed mainly in Asia with extensive species diversification in the Qinghai-Tibet Plateau (QTP) and adjacent regions. In this study, we revealed almost fully resolved backbone relationships of the genus with genome re-sequencing data for genomes of 168 individuals from 28 species. Phylogenetic analyses of both plastomes and single-copy nuclear genes from the whole genome recovered six well-supported clades with almost consistent relationships. The first two clades are mainly distributed in central China and central Asia, while the other four in the QTP and adjacent regions. All of them diversified within 12 million years. Within each clade, we recovered numerous conflicts in the interspecific relationships between nuclear and plastome phylogenies, likely suggesting hybridization and incomplete lineage sorting during species diversification. Our estimation of genome size and comparison of the number of the single-copy nuclear genes demonstrated frequent occurrences of polyploids in the genus. Except for an establishment of the backbone phylogeny, our phylogenomic analyses suggest that in addition to strong geographic isolation, polyploidization may have played an important role in species diversification of this genus.