Evolutionary dynamics of rDNA clusters on chromosomes of buthid scorpions (Chelicerata: Arachnida)

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dc.authoridStahlavsky, Frantisek/0000-0002-8520-9166
dc.authoridStundlova, Jana/0000-0001-7890-1608
dc.authoridNguyen, Petr/0000-0003-1395-4287
dc.contributor.authorStahlavsky, Frantisek
dc.contributor.authorNguyen, Petr
dc.contributor.authorSadilek, David
dc.contributor.authorStundlova, Jana
dc.contributor.authorJust, Pavel
dc.contributor.authorHaddad, Charles R.
dc.contributor.authorKoc, Halil
dc.date.accessioned2025-03-23T19:34:20Z
dc.date.available2025-03-23T19:34:20Z
dc.date.issued2020
dc.departmentSinop Üniversitesi
dc.description.abstractWe examined the distribution of genes for major ribosomal RNAs (rDNA) on holokinetic chromosomes of 74 species belonging to 19 genera of scorpions from the family Buthidae using fluorescence in situ hybridization (FISH). Our analysis revealed differences between the two main evolutionary lineages within the family. The genera belonging to the `Buthus group', with a proposed Laurasian origin, possess one pair of rDNA mainly in an interstitial position, with the only exceptions being the terminal location found in some Hottentotta and Buthacus species, possibly as a result of chromosome fissions. All the remaining buthid 'groups' possess rDNA found strictly in a terminal position. However, the number of signals may increase from an ancestral state of one pair of rDNA loci to up to seven signals in Reddyanus ceylonensis Kovarik et al., 2016. Despite the differences in evolutionary dynamics of the rDNA clusters between the 'Buthus group' and other lineages investigated, we found a high incidence of reciprocal translocations and presence of multivalent associations during meiosis in the majority of the genera studied. These phenomena seem to be typical for the whole family Buthidae.
dc.description.sponsorshipGrant Agency of the Charles University [GA UK 1324217]; Ministry of Education, Youth and Sports of the Czech Republic [SVV 260571/2020]; European Regional Development Fund; state budget of the Czech Republic [CZ.1.05/4.1.00/16.0347, CZ.2.16/3.1.00/21515]; National Research Foundation of South Africa [95569, 112127]
dc.description.sponsorshipWe thank Liliana Maria Mola and two anonymous reviewers for valuable comments and suggestions that improved this paper. The study was supported by the grants of the Grant Agency of the Charles University (GA UK 1324217) and Ministry of Education, Youth and Sports of the Czech Republic (SVV 260571/2020). Microscopy was performed in the Laboratory of Confocal and Fluorescence Microscopy, co-financed by the European Regional Development Fund and the state budget of the Czech Republic, Project nos. CZ.1.05/4.1.00/16.0347 and CZ.2.16/3.1.00/21515. The specimens were collected and exported under Permit No. WL/3/2/79/14 from Department of Wildlife Conservation from Sri Lanka. South African specimens were sampled under permits from CapeNature (Western Cape, AAA007-00174-0056), Eastern Cape Parks and Tourism Agency (Eastern Cape, RA0201) and the Northern Cape Nature Conservation (Northern Cape, FAUNA 1228/2017), with fieldwork funded by the National Research Foundation of South Africa (grants #95569 and #112127).
dc.identifier.doi10.1093/biolinnean/blaa118
dc.identifier.endpage565
dc.identifier.issn0024-4066
dc.identifier.issn1095-8312
dc.identifier.issue3
dc.identifier.scopus2-s2.0-85097099306
dc.identifier.scopusqualityQ2
dc.identifier.startpage547
dc.identifier.urihttps://doi.org/10.1093/biolinnean/blaa118
dc.identifier.urihttps://hdl.handle.net/11486/5655
dc.identifier.volume131
dc.identifier.wosWOS:000605985700007
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherOxford Univ Press
dc.relation.ispartofBiological Journal of the Linnean Society
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WOS_20250323
dc.subject18S rDNA
dc.subjectFISH
dc.subjectholokinetic chromosome
dc.subjectkaryotype evolution
dc.subjectreciprocal translocation
dc.titleEvolutionary dynamics of rDNA clusters on chromosomes of buthid scorpions (Chelicerata: Arachnida)
dc.typeArticle

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