Impact of parasitic lifestyle and different types of centromere organization on chromosome and genome evolution in the plant genus Cuscuta

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389030%3A_____%2F21%3A00535085" target="_blank" >RIV/61389030:_____/21:00535085 - isvavai.cz</a>

Alternative codes found

RIV/60077344:_____/21:00535085

Result on the web

<a href="https://nph.onlinelibrary.wiley.com/doi/10.1111/nph.17003" target="_blank" >https://nph.onlinelibrary.wiley.com/doi/10.1111/nph.17003</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/nph.17003" target="_blank" >10.1111/nph.17003</a>

Result language

angličtina

Original language name

Impact of parasitic lifestyle and different types of centromere organization on chromosome and genome evolution in the plant genus Cuscuta

Original language description

The parasitic genus Cuscuta (Convolvulaceae) is exceptional among plants with respect to centromere organization, including both monocentric and holocentric chromosomes, and substantial variation in genome size and chromosome number. We investigated 12 species representing the diversity of the genus in a phylogenetic context to reveal the molecular and evolutionary processes leading to the diversification of their genomes.nnWe measured genome sizes and investigated karyotypes and centromere organization using molecular cytogenetic techniques. We also performed low-pass whole genome sequencing and comparative analysis of repetitive DNA composition.nnA remarkable 102-fold variation in genome sizes (342-34 734 Mbp/1C) was detected for monocentric Cuscuta species, while genomes of holocentric species were of moderate sizes (533-1545 Mbp/1C). The genome size variation was primarily driven by the differential accumulation of LTR-retrotransposons and satellite DNA. The transition to holocentric chromosomes in the subgenus Cuscuta was associated with loss of histone H2A phosphorylation and elimination of centromeric retrotransposons. In addition, basic chromosome number of holocentric species (x = 7) was smaller than in monocentric (x = 15 or 16).nnWe demonstrated that the transition to holocentricity in Cuscuta was accompanied by significant changes in epigenetic marks, chromosome number and the repetitive DNA sequence composition.

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

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OECD FORD branch

10603 - Genetics and heredity (medical genetics to be 3)

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

2021

Confidentiality

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

Name of the periodical

New Phytologist

ISSN

0028-646X

e-ISSN

1469-8137

Volume of the periodical

229

Issue of the periodical within the volume

4

Country of publishing house

GB - UNITED KINGDOM

Number of pages

13

Pages from-to

2365-2377

UT code for WoS article

000588834000001

EID of the result in the Scopus database

2-s2.0-85096811099