Holocentric chromosomes: from tolerance to fragmentation to colonization of the land

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F18%3A00100842" target="_blank" >RIV/00216224:14310/18:00100842 - isvavai.cz</a>

Result on the web

<a href="https://academic.oup.com/aob/article/121/1/9/4560298" target="_blank" >https://academic.oup.com/aob/article/121/1/9/4560298</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1093/aob/mcx118" target="_blank" >10.1093/aob/mcx118</a>

Result language

angličtina

Original language name

Holocentric chromosomes: from tolerance to fragmentation to colonization of the land

Original language description

Background The dispersed occurrence of holocentric chromosomes across eukaryotes implies they are adaptive, but the conditions under which they confer an advantage over monocentric chromosomes remain unclear. Due to their extended kinetochore and the attachment of spindle microtubules along their entire length, holocentric chromosomes tolerate fragmentation; hence, they may be advantageous in times of exposure to factors that cause chromosomal fragmentation (clastogens). Scope It is shown that holocentric organisms may, indeed, thrive better than monocentric organisms under clastogenic conditions and that such conditions of various duration and intensity have occurred many times throughout the history of Earth's biota. One of the most important clastogenic events in eukaryotic history, in which holocentric chromosomes may have played the key role, was the colonization of land by plants and animals half a billion years ago. In addition to arguments supporting the anticlastogenic hypothesis of holocentric chromosomes and a discussion of its evolutionary consequences, experiments and analyses are proposed to explore this hypothesis in more depth. Conclusions It is argued that the tolerance to clastogens explains the origin of holocentric lineages and may also have far-reaching consequences for eukaryotic evolution in general as exemplified by the potential role of holocentric chromosomes in terrestrialization.

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

10611 - Plant sciences, botany

Project

<a href="/en/project/GA17-21053S" target="_blank" >GA17-21053S: Success of holocentric chromosomes: natural competitive experiment on a global evolutionary scale</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2018

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

—

Volume of the periodical

121

Issue of the periodical within the volume

1

Country of publishing house

GB - UNITED KINGDOM

Number of pages

8

Pages from-to

9-16

UT code for WoS article

000423708500006

EID of the result in the Scopus database

2-s2.0-85041369117