Is centromere drive reflected in chromosome size?

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F23%3A00132509" target="_blank" >RIV/00216224:14310/23:00132509 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Is centromere drive reflected in chromosome size?

Popis výsledku v původním jazyce

Previous studies have shown that the total centromere/kinetochore size per nucleus strongly correlates with the genome size across eukaryotes. Since centromere drive mediates variability of kinetochore size in seed plants and animals where only one of four products of female meiosis survives (asymmetric female meiosis), it could also be responsible for the higher chromosome size variation in these lineages compared to bryophytes, lycophytes, ferns, and fungi with symmetric female meiosis. We analyzed how the adaptive evolution of kinetochore protein CenH3 is related to chromosome size variation within groups (12 symmetric and 23 asymmetric) and within karyotypes (41 symmetric and 246 asymmetric). Symmetric groups/karyotypes had lower adaptive evolution of CenH3 and less diverged chromosome size than asymmetric. Therefore, we can confirm that centromere drive can affect the evolution of chromosome size in eukaryotes.

Název v anglickém jazyce

Is centromere drive reflected in chromosome size?

Popis výsledku anglicky

Previous studies have shown that the total centromere/kinetochore size per nucleus strongly correlates with the genome size across eukaryotes. Since centromere drive mediates variability of kinetochore size in seed plants and animals where only one of four products of female meiosis survives (asymmetric female meiosis), it could also be responsible for the higher chromosome size variation in these lineages compared to bryophytes, lycophytes, ferns, and fungi with symmetric female meiosis. We analyzed how the adaptive evolution of kinetochore protein CenH3 is related to chromosome size variation within groups (12 symmetric and 23 asymmetric) and within karyotypes (41 symmetric and 246 asymmetric). Symmetric groups/karyotypes had lower adaptive evolution of CenH3 and less diverged chromosome size than asymmetric. Therefore, we can confirm that centromere drive can affect the evolution of chromosome size in eukaryotes.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

10611 - Plant sciences, botany

Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

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