J 2021

Linked by Ancestral Bonds: Multiple Whole-Genome Duplications and Reticulate Evolution in a Brassicaceae Tribe

GUO, Xinyi, Terezie MALÍK MANDÁKOVÁ, Karolína TRACHTOVÁ, B. OZUDOGRU, J.Q. LIU et. al.

Basic information

Original name

Linked by Ancestral Bonds: Multiple Whole-Genome Duplications and Reticulate Evolution in a Brassicaceae Tribe

Authors

GUO, Xinyi (156 China, belonging to the institution), Terezie MALÍK MANDÁKOVÁ (203 Czech Republic, belonging to the institution), Karolína TRACHTOVÁ (203 Czech Republic, belonging to the institution), B. OZUDOGRU, J.Q. LIU and Martin LYSÁK (203 Czech Republic, guarantor, belonging to the institution)

Edition

Molecular Biology and Evolution, OXFORD, OXFORD UNIV PRESS, 2021, 0737-4038

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10608 Biochemistry and molecular biology

Country of publisher

United Kingdom of Great Britain and Northern Ireland

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 8.800

RIV identification code

RIV/00216224:14740/21:00119671

Organization unit

Central European Institute of Technology

UT WoS

000654668800001

Keywords in English

hybridization; polyploidy; whole-genome duplication; reticulate evolution; diploidization; dysploidy; chromosome rearrangements; phylogenetics

Tags

Tags

International impact, Reviewed
Změněno: 24/2/2022 16:11, Mgr. Pavla Foltynová, Ph.D.

Abstract

V originále

Pervasive hybridization and whole-genome duplications (WGDs) influenced genome evolution in several eukaryotic lineages. Although frequent and recurrent hybridizations may result in reticulate phylogenies, the evolutionary events underlying these reticulations, including detailed structure of the ancestral diploid and polyploid genomes, were only rarely reconstructed. Here, we elucidate the complex genomic history of a monophyletic clade from the mustard family (Brassicaceae), showing contentious relationships to the early-diverging clades of this model plant family. Genome evolution in the crucifer tribe Biscutelleae (similar to 60 species, 5 genera) was dominated by pervasive hybridizations and subsequent genome duplications. Diversification of an ancestral diploid genome into several divergent but crossable genomes was followed by hybridizations between these genomes. Whereas a single genus (Megadenia) remained diploid, the four remaining genera originated by allopolyploidy (Biscutella, Lunaria, Ricotia) or autopolyploidy (Heldreichia). The contentious relationships among the Biscutelleae genera, and between the tribe and other early diverged crucifer lineages, are best explained by close genomic relatedness among the recurrently hybridizing ancestral genomes. By using complementary cytogenomics and phylogenomics approaches, we demonstrate that the origin of a monophyletic plant clade can be more complex than a parsimonious assumption of a single WGD spurring postpolyploid cladogenesis. Instead, recurrent hybridization among the same and/or closely related parental genomes may phylogenetically interlink diploid and polyploid genomes despite the incidence of multiple independent WGDs. Our results provide new insights into evolution of early-diverging Brassicaceae lineages and elucidate challenges in resolving the contentious relationships within and between land plant lineages with pervasive hybridization and WGDs.

Links

GJ20-03419Y, research and development project
Name: Post-polyploidní evoluce genomů v tribu Microlepidieae (Brassicaceae)
Investor: Czech Science Foundation
LM2018140, research and development project
Name: e-Infrastruktura CZ (Acronym: e-INFRA CZ)
Investor: Ministry of Education, Youth and Sports of the CR
LQ1601, research and development project
Name: CEITEC 2020 (Acronym: CEITEC2020)
Investor: Ministry of Education, Youth and Sports of the CR