Unveiled chromosomal diversity in the Araneidae (Araneomorphae): the highest diploid number among entelegynes and the first record of the X1X2X3X4 sex chromosome system in the family

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dc.contributorLab. Coleções Zoológicaspt_BR
dc.contributor.authorSouza, Lucas Henrique Bonfimpt_BR
dc.contributor.authorCosta, Caroline Correiapt_BR
dc.contributor.authorSilva, Bruno Cansançãopt_BR
dc.contributor.authorDutra, Debora Duartept_BR
dc.contributor.authorMontanholi, Arthur dos Santospt_BR
dc.contributor.authorOliveira, Beatrizpt_BR
dc.contributor.authorRoghanian, Susanpt_BR
dc.contributor.authorPontes, Larissa Candido Lemospt_BR
dc.contributor.authorPontes, Henrique Ranieri Covalipt_BR
dc.contributor.authorPádua, Aline Agatha dept_BR
dc.contributor.authorDias, Rebeca Rocha Sobrinho dos Santospt_BR
dc.contributor.authorBrescovit, Antonio Domingospt_BR
dc.contributor.authorAraujo, Douglaspt_BR
dc.date.accessioned2022-05-19T12:44:58Z-
dc.date.available2022-05-19T12:44:58Z-
dc.date.issued2022pt_BR
dc.identifier.citationSouza LHB, Costa CC, Silva BC, Dutra DD, Montanholi AS, Oliveira B, et al. Unveiled chromosomal diversity in the Araneidae (Araneomorphae): the highest diploid number among entelegynes and the first record of the X1X2X3X4 sex chromosome system in the family. The J. of Arachnology. 2022 Mar; 50(1):13-22. doi:10.1636/JoA-S-20-071.pt_BR
dc.identifier.urihttps://repositorio.butantan.gov.br/handle/butantan/4348-
dc.description.abstractThe Araneidae is among the most speciose spider families, but there are few karyotype studies (1.9%) and some species-rich clades are without any chromosomal study. Understanding the evolution of chromosome number and Sex Chromosome Systems is made more difficult by many uncertain evolutionary relationships within the family. In this work, the chromosomal analysis of eight araneid species (Acacesia benigna Glueck, 1994, Actinosoma pentacanthum (Walckenaer, 1841), Alpaida bicornuta (Taczanowski, 1878), Dubiepeira Levi, 1991 sp., Gasteracantha cancriformis (Linnaeus, 1758), Parawixia bistriata (Rengger, 1836), Verrucosa meridionalis (Keyserling, 1892) and Verrucosa scapofracta Lise, Kesster & Silva, 2015), contribute to discussions of some evolutionary scenarios of chromosome evolution. The gonads were submitted to colchicine treatment, hypotonization, slide preparation, and Giemsa staining. The species analyzed showed 2n♂ = 24 (11II + X1X2), except Dubiepeira sp. with 2n♂ = 41 (19II + X1X2X3), and both Verrucosa species, which presented 2n♂ = 47 (22II + X1X2X3) in V. meridionalis and 2n♂ = 50 (23II + X1X2X3X4) in V. scapofracta. The species analyzed possess all chromosomes with acro/telocentric chromosomal morphology. The 2n♂ = 24, X1X2 found in most species studied here is the most frequent karyotype in the Araneidae. This study presents the first chromosomal data for the diverse clade “Micrathenines”, the highest diploid number among entelegynes (2n♂ = 50), and the first record of an X1X2X3X4 in the Araneidae. The chromosome data suggest a series of fission events in the origin of Verrucosa karyotypes, and a close relationship between Dubiepeira sp. and Araneus ventricosus (L. Koch, 1878). Moreover, Alpaida bicornuta can be cytotaxonomically distinguished of other Alpaida species karyotyped up to now.pt_BR
dc.format.extent13-22pt_BR
dc.language.isoEnglishpt_BR
dc.relation.ispartofThe Journal of Arachnologypt_BR
dc.rightsRestricted accesspt_BR
dc.titleUnveiled chromosomal diversity in the Araneidae (Araneomorphae): the highest diploid number among entelegynes and the first record of the X1X2X3X4 sex chromosome system in the familypt_BR
dc.typeArticlept_BR
dc.identifier.doi10.1636/JoA-S-20-071pt_BR
dc.identifier.urlhttps://doi.org/10.1636/JoA-S-20-071pt_BR
dc.contributor.external(UFMS) Universidade Federal de Mato Grosso do Sulpt_BR
dc.identifier.citationvolume50pt_BR
dc.identifier.citationissue1pt_BR
dc.relation.ispartofabbreviatedThe J. of Arachnologypt_BR
dc.identifier.citationabntv. 50, n. 1, p. 13-22, mar. 2022pt_BR
dc.identifier.citationvancouver2022 Mar; 50(1):13-22pt_BR
dc.contributor.butantanBrescovit, Antonio Domingos|:Pesquisador|:Lab. Coleções Zoológicaspt_BR
dc.identifier.bvsccBR78.1pt_BR
dc.identifier.bvsdbIBProdpt_BR
dc.description.dbindexedYespt_BR
item.grantfulltextnone-
item.languageiso639-1English-
item.openairetypeArticle-
item.fulltextSem Texto completo-
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