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@article{1445556,
author = {Kolodin, Pavel and Cempírková, Hana and Bureš, Petr and Horová, Lucie and Veleba, Adam and Francová, Jana and Adamec, Lubomír and Zedek, František},
article_number = {10},
doi = {http://dx.doi.org/10.1007/s00606-018-1546-8},
keywords = {Aldrovanda;Dionaea;Drosera;Drosophyllum;Flow cytometry;Gamma irradiation;Holocentric chromosomes;Holokinetic chromosomes;Karyotype evolution;carnivory},
language = {eng},
issn = {0378-2697},
journal = {Plant Systematics and Evolution},
title = {Holocentric chromosomes may be an apomorphy of Droseraceae},
url = {https://link.springer.com/content/pdf/10.1007%2Fs00606-018-1546-8.pdf},
volume = {304},
year = {2018}
}
TY - JOUR
ID - 1445556
AU - Kolodin, Pavel - Cempírková, Hana - Bureš, Petr - Horová, Lucie - Veleba, Adam - Francová, Jana - Adamec, Lubomír - Zedek, František
PY - 2018
TI - Holocentric chromosomes may be an apomorphy of Droseraceae
JF - Plant Systematics and Evolution
VL - 304
IS - 10
SP - 1289-1296
EP - 1289-1296
PB - Springer
SN - 03782697
KW - Aldrovanda;Dionaea;Drosera;Drosophyllum;Flow cytometry;Gamma irradiation;Holocentric chromosomes;Holokinetic chromosomes;Karyotype evolution;carnivory
UR - https://link.springer.com/content/pdf/10.1007%2Fs00606-018-1546-8.pdf
N2 - 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.
ER -
KOLODIN, Pavel, Hana CEMPÍRKOVÁ, Petr BUREŠ, Lucie HOROVÁ, Adam VELEBA, Jana FRANCOVÁ, Lubomír ADAMEC and František ZEDEK. Holocentric chromosomes may be an apomorphy of Droseraceae. \textit{Plant Systematics and Evolution}. Springer, 2018, vol.~304, No~10, p.~1289-1296. ISSN~0378-2697. Available from: https://dx.doi.org/10.1007/s00606-018-1546-8.
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