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

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dc.contributor.authorŠtáhlavský F.
dc.contributor.authorNguyen P.
dc.contributor.authorSadílek D.
dc.contributor.authorŠtundlová J.
dc.contributor.authorJust P.
dc.contributor.authorHaddad C.R.
dc.contributor.authorKoç H.
dc.contributor.authorRanawana K.B.
dc.contributor.authorStockmann M.
dc.contributor.authorYagmur E.A.
dc.contributor.authorKovarík F.
dc.date.accessioned2024-07-22T08:07:47Z
dc.date.available2024-07-22T08:07:47Z
dc.date.issued2020
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 Kovarík 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. © 2020 The Linnean Society of London, Biological Journal of the Linnean Society, 2020.
dc.identifier.DOI-ID10.1093/BIOLINNEAN/BLAA118
dc.identifier.issn00244066
dc.identifier.urihttp://akademikarsiv.cbu.edu.tr:4000/handle/123456789/14077
dc.language.isoEnglish
dc.publisherOxford University Press
dc.subjectArachnida
dc.subjectButhacus
dc.subjectButhidae
dc.subjectButhus
dc.subjectChelicerata
dc.subjectHottentotta
dc.subjectScorpiones
dc.subjectarachnid
dc.subjectchromosome
dc.subjectDNA
dc.subjectevolutionary biology
dc.titleEvolutionary dynamics of rDNA clusters on chromosomes of buthid scorpions (Chelicerata: Arachnida)
dc.typeArticle

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