Evolution of genome size and genomic GC content in carnivorous holokinetics (Droseraceae)

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F17%3A00094583" target="_blank" >RIV/00216224:14310/17:00094583 - isvavai.cz</a>

Result on the web

<a href="https://academic.oup.com/aob/article/119/3/409/2740719" target="_blank" >https://academic.oup.com/aob/article/119/3/409/2740719</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1093/aob/mcw229" target="_blank" >10.1093/aob/mcw229</a>

Result language

angličtina

Original language name

Evolution of genome size and genomic GC content in carnivorous holokinetics (Droseraceae)

Original language description

Background and Aims: Studies in the carnivorous family Lentibulariaceae in the last years resulted in the discovery of the smallest plant genomes and an unusual pattern of genomic GC content evolution. However, scarcity of genomic data in other carnivorous clades still prevents a generalization of the observed patterns. Here the aim was to fill this gap by mapping genome evolution in the second largest carnivorous family, Droseraceae, where this evolution may be affected by chromosomal holokinetism in Drosera. Methods: The genome size and genomic GC content of 71 Droseraceae species were measured by flow cytometry. A dated phylogeny was constructed, and the evolution of both genomic parameters and their relationship to species climatic niches were tested using phylogeny-based statistics. Key Results: The 2C genome size of Droseraceae varied between 488 and 10 927 Mbp, and the GC content ranged between 37.1 and 44.7 %. The genome sizes and genomic GC content of carnivorous and holocentric species did not differ from those of their non-carnivorous and monocentric relatives. The genomic GC content positively correlated with genome size and annual temperature fluctuations. The genome size and chromosome numbers were inversely correlated in the Australian clade of Drosera. Conclusions: Our results indicate that neither carnivory (nutrient scarcity) nor the holokinetism have a prominent effect on size and DNA base composition of Droseraceae genomes. However, the holokinetic drive seems to affect karyotype evolution in one of the major clades of Drosera. Our survey confirmed that the evolution of GC content is tightly connected with the evolution of genome size and also with environmental conditions.

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)

Publication year

2017

Confidentiality

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

Name of the periodical

Annals of Botany

ISSN

0305-7364

e-ISSN

1095-8290

Volume of the periodical

119

Issue of the periodical within the volume

1

Country of publishing house

GB - UNITED KINGDOM

Number of pages

8

Pages from-to

409-416

UT code for WoS article

000396935400013

EID of the result in the Scopus database

2-s2.0-85027999978