Genome diploidization associates with cladogenesis, trait disparity, and plastid gene evolution

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14740%2F22%3A00126244" target="_blank" >RIV/00216224:14740/22:00126244 - isvavai.cz</a>

Result on the web

<a href="https://academic.oup.com/plphys/advance-article/doi/10.1093/plphys/kiac268/6603700?login=true" target="_blank" >https://academic.oup.com/plphys/advance-article/doi/10.1093/plphys/kiac268/6603700?login=true</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1093/plphys/kiac268" target="_blank" >10.1093/plphys/kiac268</a>

Result language

angličtina

Original language name

Genome diploidization associates with cladogenesis, trait disparity, and plastid gene evolution

Original language description

Differently paced postpolyploid diploidization is mirrored by intra-tribal cladogenesis and associates with variation in morphological disparity and plastid-nuclear genome coevolution. Angiosperm genome evolution was marked by many clade-specific whole-genome duplication events. The Microlepidieae is one of the monophyletic clades in the mustard family (Brassicaceae) formed after an ancient allotetraploidization. Postpolyploid cladogenesis has resulted in the extant c. 17 genera and 60 species endemic to Australia and New Zealand (10 species). As postpolyploid genome diploidization is a trial-and-error process under natural selection, it may proceed with different intensity and be associated with speciation events. In Microlepidieae, different extents of homoeologous recombination between the two parental subgenomes generated clades marked by slow ("cold") versus fast ("hot") genome diploidization. To gain a deeper understanding of postpolyploid genome evolution in Microlepidieae, we analyzed phylogenetic relationships in this tribe using complete chloroplast sequences, entire 35S rDNA units, and abundant repetitive sequences. The four recovered intra-tribal clades mirror the varied diploidization of Microlepidieae genomes, suggesting that the intrinsic genomic features underlying the extent of diploidization are shared among genera and species within one clade. Nevertheless, even congeneric species may exert considerable morphological disparity (e.g. in fruit shape), whereas some species within different clades experience extensive morphological convergence despite the different pace of their genome diploidization. We showed that faster genome diploidization is positively associated with mean morphological disparity and evolution of chloroplast genes (plastid-nuclear genome coevolution). Higher speciation rates in perennials than in annual species were observed. Altogether, our results confirm the potential of Microlepidieae as a promising subject for the analysis of postpolyploid genome diploidization in Brassicaceae.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10611 - Plant sciences, botany

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2022

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

PLANT PHYSIOLOGY

ISSN

0032-0889

e-ISSN

—

Volume of the periodical

190

Issue of the periodical within the volume

1

Country of publishing house

US - UNITED STATES

Number of pages

18

Pages from-to

403-420

UT code for WoS article

000815083000001

EID of the result in the Scopus database

2-s2.0-85137138425