Fast satellite DNA evolution in Nothobranchius annual killifishes

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Authors	VOLENIKOVA Anna LUKSIKOVA Karolina MORA Pablo PAVLICA Tomas ALTMANOVA Marie STUNDLOVA Jana PELIKANOVA Sarka SIMANOVSKY Sergey A JANKASEK Marek REICHARD Martin NGUYEN Petr SEMBER Alexandr
Year of publication	2023
Type	Article in Periodical
Magazine / Source	Chromosome Research
MU Faculty or unit	Faculty of Science
Citation
Web	https://doi.org/10.1007/s10577-023-09742-8
Doi	http://dx.doi.org/10.1007/s10577-023-09742-8
Keywords	Centromere drive; Constitutive heterochromatin; RepeatExplorer; Repetitive sequences; satDNA
Description	Satellite DNA (satDNA) is a rapidly evolving class of tandem repeats, with some monomers being involved in centromere organization and function. To identify repeats associated with (peri)centromeric regions, we investigated satDNA across Southern and Coastal clades of African annual killifishes of the genus Nothobranchius. Molecular cytogenetic and bioinformatic analyses revealed that two previously identified satellites, designated here as NkadSat01-77 and NfurSat01-348, are associated with (peri)centromeres only in one lineage of the Southern clade. NfurSat01-348 was, however, additionally detected outside centromeres in three members of the Coastal clade. We also identified a novel satDNA, NrubSat01-48, associated with (peri)centromeres in N. foerschi, N. guentheri, and N. rubripinnis. Our findings revealed fast turnover of satDNA associated with (peri)centromeres and different trends in their evolution in two clades of the genus Nothobranchius.
Related projects:	e-Infrastruktura CZ Czech National Infrastructure for Biological Data