Holocentric chromosomes may be an apomorphy of Droseraceae

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F18%3A00101233" target="_blank" >RIV/00216224:14310/18:00101233 - isvavai.cz</a>
Alternative codes found
RIV/67985939:_____/18:00503064
Result on the web
<a href="https://link.springer.com/content/pdf/10.1007%2Fs00606-018-1546-8.pdf" target="_blank" >https://link.springer.com/content/pdf/10.1007%2Fs00606-018-1546-8.pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s00606-018-1546-8" target="_blank" >10.1007/s00606-018-1546-8</a>

Result language
angličtina
Original language name
Holocentric chromosomes may be an apomorphy of Droseraceae
Original language description
Holocentric chromosomes have evolved in various plant and animal taxa, which suggests they may confer a selective advantage in certain conditions, yet their adaptive potential has scarcely been studied. One of the reasons may reside in our insufficient knowledge of the phylogenetic distribution of holocentric chromosomes across eukaryotic phylogeny. In the present study, we focused on Droseraceae, a carnivorous plant family with an unknown chromosomal structure in monotypic genera Dionaea and Aldrovanda, and a closely related monotypic family Drosophyllaceae. We used flow cytometry to detect holocentric chromosomes by measuring changes in the ratio of the number of G2 nuclei to the number of G1 nuclei in response to gamma irradiation and determined chromosomal structures in Aldrovanda vesiculosa, Dionaea muscipula, Drosera tokaiensis, and Drosera ultramafica from Droseraceae and Drosophyllum lusitanicum from Drosophyllaceae. We confirmed monocentric chromosomes in D. lusitanicum and detected holocentric chromosomes in all four Droseraceae. Our novel finding of holocentric chromosomes in monotypic genera Aldrovanda and Dionaea suggests that all Droseraceae may be holocentric, but to confirm that further research is needed due to previously reported conflicting results in Drosera rotundifolia.
Czech name
—
Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
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

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