Comparative cytogenetic analysis among filistatid spiders (Araneomorphae: Haplogynae)

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dc.citation.issue1
dc.citation.volume45
dc.contributor.authorPaula-Neto, Emygdio
dc.contributor.authorCella, Doralice Maria
dc.contributor.authorAraujo, Douglas
dc.contributor.authorBrescovit, Antonio Domingos
dc.contributor.authorSchneider, Marielle Cristina [UNIFESP]
dc.coverageCollege Park
dc.date.accessioned2020-07-31T12:46:43Z
dc.date.available2020-07-31T12:46:43Z
dc.date.issued2017
dc.description.abstractThe family Filistatidae is considered sister to Synspermiata or sister to Hypochilidae. Cytogenetic knowledge of this family could be useful for understanding the mechanism of chromosome evolution that has occurred within the group. In this work, two filistatid species belonging to distinct subfamilies, Kukulcania hibernalis (Hentz, 1842) (Filistatinae) and Misionella mendensis (Mello-Leitao, 1920) (Prithinae), were investigated using standard and differential chromosome staining. Analysis of mitotic and meiotic cells revealed the diploid 2n male = 25 for K. hibernalis and 2n male = 21 for M. mendensis. Both species exhibited a sex chromosome system of the X1X2Y type and metacentric/submetacentric chromosomes. In prophase I cells, the sex chromosomes were in a trivalent configuration with all elements associated without chiasma through their terminal regions. Both species revealed six nucleolar organizer regions on the terminal region of three autosomal pairs. In K. hibernalis, constitutive heterochromatin was located mainly in the terminal regions of autosomes and sex chromosomes while in M. mendensis, the heterochromatin occurred in the pericentromeric region of all chromosomes. Despite the scarcity of cytogenetic information for Filistatidae, the available results show the occurrence of high variability in the diploid number but with the maintenance of the X1X2Y sex chromosome system. Additionally, the karyotype differentiation in the species of this family seems to have involved not only the number of autosomes but also specific chromosomal sites, such as the constitutive heterochromatic regions.en
dc.description.affiliationUniv Estadual Paulista, UNESP, Inst Biociencias, Dept Biol, Ave 24-A,1515,Caixa Postal 199, BR-13506900 Rio Claro, SP, Brazil
dc.description.affiliationUniv Fed Mato Grosso do Sul UFMS, CCBS, BR-79070900 Campo Grande, MG, Brazil
dc.description.affiliationInst Butantan, Lab Especial Colecoes Zool, Av Vital Brasil 1500, BR-05503900 Sao Paulo, SP, Brazil
dc.description.affiliationUniv Fed Sao Paulo UNIFESP, Dept Ciencias Biol, Av Prof Artur Riedel 275, BR-09972270 Diadema, SP, Brazil
dc.description.affiliationUnifespUniversidade Federal de São Paulo (UNIFESP), Departamento de Ciências Biológicas, Av. Prof. Artur Riedel, 275, 09972-270, Diadema, São Paulo, Brazil
dc.description.sourceWeb of Science
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIDFAPESP: 2010/14193-7
dc.description.sponsorshipIDFAPESP: 2011/21643-1
dc.description.sponsorshipIDFAPESP: 2011/50689-0
dc.format.extent123-128
dc.identifierhttp://dx.doi.org/10.1636/M14-69.1
dc.identifier.citationJournal Of Arachnology. College Park, v. 45, n. 1, p. 123-128, 2017.
dc.identifier.doi10.1636/M14-69.1
dc.identifier.issn0161-8202
dc.identifier.urihttps://repositorio.unifesp.br/handle/11600/56322
dc.identifier.wosWOS:000399219300007
dc.language.isoeng
dc.publisherAmer Arachnological Soc
dc.relation.ispartofJournal Of Arachnology
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subjectconstitutive heterochromatinen
dc.subjectkaryotypeen
dc.subjectmeiosisen
dc.subjectnucleolar organizer regionen
dc.subjectsexual trivalenten
dc.titleComparative cytogenetic analysis among filistatid spiders (Araneomorphae: Haplogynae)en
dc.typeinfo:eu-repo/semantics/article
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