First chromosomal analysis in Deinopidae (Araneae) reveals sex Chromosome system X1X2X3X4, B chromosomes and polymorphism for centric fusion

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dc.contributorLaboratório Especial de Coleções Zoológicas (LECZ)pt_BR
dc.contributor.authorSouza, Lucas Henrique Bonfimpt_BR
dc.contributor.authorSilva, Bruno Cansançãopt_BR
dc.contributor.authorCosta, Caroline Correiapt_BR
dc.contributor.authorBrescovit, Antonio Domingospt_BR
dc.contributor.authorRincão, Matheus Pirespt_BR
dc.contributor.authorDias, Ana Lúciapt_BR
dc.contributor.authorAraujo, Douglaspt_BR
dc.date.accessioned2021-03-08T13:04:39Z-
dc.date.available2021-03-08T13:04:39Z-
dc.date.issued2021-
dc.identifier.citationSouza LHB, Silva BC, Costa CC, Brescovit AD, Rincão MP, Dias AL, et al. First chromosomal analysis in Deinopidae (Araneae) reveals sex Chromosome system X1X2X3X4, B chromosomes and polymorphism for centric fusion. Zoology. 2021 June;146:125906. doi:10.1016/j.zool.2021.125906.pt_BR
dc.identifier.urihttps://repositorio.butantan.gov.br/handle/butantan/3613-
dc.description.abstractHere we present the first cytogentic study concerning Deinopidae and their controversial phylogenetic position. This study karyologically analyzed one population of Deinopis biaculeata Simon, 1906 and five populations of Deinopis plurituberculata Mello-Leitão, 1925. The majority of specimens of D. plurituberculata exhibited 2n♂ = 40 and 2n♀ = 44 telocentric chromosomes (however some of them showed B chromosomes, belongs to Aquidauana and Botucatu population). The Deinopis biaculeata and D. plurituberculata meiosis of males showed 18 autosomal bivalents + X1X2X3X4, n = 22 and n = 18, a rare sex chromosome system (SCS) in spiders. Some individuals of D. plurituberculata from the Campo Grande population exhibited 2n♂ = 39 and 2n♀ = 43, with a metacentric chromosome (heterozygotes for centric fusion). The D. plurituberculata males with the rearrangement exhibit diplotenes with 16 autosomal bivalents + 1 autosomal trivalent + X1X2X3X4 and metaphases II with n = 22 (18 telocentric autosomes + X1X2X3X4), n = 21 (16 telocentric autosomes + a metacentric autosome + X1X2X3X4), n = 18 (18 telocentric autosomes) and n = 17 (16 telocentric autosomes + a metacentric autosome). The Ag-NORs (silver impregnation) are terminally located in a pair, coinciding with secondary constriction, which is the most common configuration for Araneae. The relatively high diploid number in Deinopis corroborates phylogenies that place it in a basal position among Entelegynes, in the UDOH grade (Uloboridae, Deinopidae, Oecobiidae and Hersiliidae). Centric fusion in only one population of D. plurituberculata suggests low dispersion capacity of this species and an absence of homozygotes for fusion suggests their low viability or a need to increase the population sampling of D. plurituberculata exhibiting the rearrangement. B chromosomes were detected in D. plurituberculata, with interpopulacional, intrapopulacional and intraindividual numerical variation, with cells presenting 0 - 3 and 0 - 6 B chromosomes in populations of Aquidauana and Botucatu, respectively.pt_BR
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)pt_BR
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)pt_BR
dc.description.sponsorshipInstituto Chico Mendes de Conservação da Biodiversidade (ICMBio)pt_BR
dc.format.extent125906pt_BR
dc.languageengpt_BR
dc.relation.ispartofZoology: Analysis of Complex Systemspt_BR
dc.titleFirst chromosomal analysis in Deinopidae (Araneae) reveals sex Chromosome system X1X2X3X4, B chromosomes and polymorphism for centric fusionpt_BR
dc.typeArticlept_BR
dc.identifier.doi10.1016/j.zool.2021.125906pt_BR
dc.identifier.urlhttps://doi.org/10.1016/j.zool.2021.125906pt_BR
dc.contributor.externalUniversidade Federal de Mato Grosso do Sul (UFMS)pt_BR
dc.contributor.externalUniversidade Estadual de Londrina (UEL)pt_BR
dc.identifier.citationvolume146pt_BR
dc.subject.keywordChromosomal rearrangementpt_BR
dc.subject.keywordNORspt_BR
dc.subject.keywordsupernumerary chromosomespt_BR
dc.subject.keywordDeinopispt_BR
dc.relation.ispartofabbreviatedZoologypt_BR
dc.identifier.citationabntv. 146, 125906, jun. 2021pt_BR
dc.identifier.citationvancouver2021 June;146:125906pt_BR
dc.contributor.butantanBrescovit, Antonio Domingos|:Pesquisador|:Laboratório Especial de Coleções Zoológicas (LECZ)pt_BR
dc.sponsorship.butantanCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)¦¦001pt_BR
dc.sponsorship.butantanConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)¦¦303903/2019-8pt_BR
dc.sponsorship.butantanInstituto Chico Mendes de Conservação da Biodiversidade (ICMBio)¦¦64541pt_BR
dc.sponsorship.butantanInstituto Chico Mendes de Conservação da Biodiversidade (ICMBio)¦¦15382-1pt_BR
dc.identifier.bvsccBR78.1pt_BR
dc.identifier.bvsdbIBProdpt_BR
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