Chromosome evolution in lycosoid spiders (Araneomorphae): a scenario based on analysis of seven species of the families Lycosidae, Senoculidae and Trechaleidae

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dc.contributor.authorAraujo, Douglas
dc.contributor.authorOliveira, Edson Gabriel [UNESP]
dc.contributor.authorGiroti, Andre Marsola
dc.contributor.authorMattos, Viviane Fagundes [UNESP]
dc.contributor.authorPaula-Neto, Emygdio [UNESP]
dc.contributor.authorBrescovit, Antonio Domingos
dc.contributor.authorSchneider, Marielle Cristina
dc.contributor.authorCella, Doralice Maria [UNESP]
dc.contributor.institutionUniversidade Federal de Mato Grosso do Sul (UFMS)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionInstuto Butantan
dc.contributor.institutionUniversidade Federal de São Paulo (UNIFESP)
dc.date.accessioned2015-10-21T13:12:15Z
dc.date.available2015-10-21T13:12:15Z
dc.date.issued2015-01-01
dc.description.abstractWithin the araneomorph lineage Entelegynae, the "Higher lycosoids''("True Lycosoids''or Lycosoidea s.s.) is one of the major clades varying in its composition based on several conflicting phylogenetic hypotheses. So far, only a few species have been studied cytogenetically. In this work, the chromosomes of a senoculid spider were investigated for the first time, along with a cytogenetic analysis of six species of the families Lycosidae and Trechaleidae. Mitotic metaphase cells of the lycosid species revealed 2n male = 18 + X0 in Hogna sternalis (Bertkau 1880) and Lycosa nordenskjoldi Tullgren 1905, and 2n male = 20 + X(1)X(2)0 in Lycosa erythrognatha Lucas 1836 and Lycosa sericovittata Mello-Leitao 1939. Chromosomal analysis of the trechaleid and senoculid species showed 2n female = 22 in Neoctenus comosus Simon 1897 (Trechaleidae), and 2n male = 26 + X(1)X(2)0 in Syntrechalea syntrechaloides (Mello-Leitao 1941) (Trechaleidae) and Senoculus sp. (Senoculidae). This latter karyotype is a shared feature in most species of Lycosoidea group. The mitotic and/or meiotic cells of certain individuals of Trechaleidae exhibited one extra chromosome, which could constitute a B chromosome or represent intraspecific variability in the type of sex chromosome system. The results obtained here add new information to the discussion of the main mechanisms of chromosome evolution within this group.en
dc.description.affiliationUniv Fed Mato Grosso do Sul, Setor Biol Geral, Ctr Ciencias Biol &Saude, BR-79070900 Campo Grande, MS, Brazil
dc.description.affiliationUniv Estadual Paulista, Inst Biociencias, Dept Biol, UNESP, BR-13506900 Sao Paulo, Brazil
dc.description.affiliationInst Butantan, Lab Especial Colecoes Zool, BR-05503900 Sao Paulo, Brazil
dc.description.affiliationUniv Fed Sao Paulo, UNIFESP, Dept Ciencias Biol, BR-09972270 Sao Paulo, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Inst Biociencias, Dept Biol, UNESP, BR-13506900 Sao Paulo, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipIdFAPESP: 06/53275-3
dc.description.sponsorshipIdCNPq: ADB 301776/2004-0
dc.description.sponsorshipIdCNPq: DA 471821/2008
dc.format.extent174-181
dc.identifierhttp://www.bioone.org/doi/abs/10.1636/M14-60
dc.identifier.citationJournal Of Arachnology. College Park: Amer Arachnological Soc, v. 43, n. 2, p. 174-181, 2015.
dc.identifier.doi10.1636/M14-60
dc.identifier.issn0161-8202
dc.identifier.urihttp://hdl.handle.net/11449/128683
dc.identifier.wosWOS:000357716100006
dc.language.isoeng
dc.publisherAmer Arachnological Soc
dc.relation.ispartofJournal Of Arachnology
dc.relation.ispartofjcr1.236
dc.relation.ispartofsjr0,557
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectCytogeneticsen
dc.subjectMitosisen
dc.subjectMeiosisen
dc.subjectSex chromosome systemen
dc.subjectLycosoideaen
dc.titleChromosome evolution in lycosoid spiders (Araneomorphae): a scenario based on analysis of seven species of the families Lycosidae, Senoculidae and Trechaleidaeen
dc.typeArtigo
dcterms.rightsHolderAmer Arachnological Soc
unesp.author.orcid0000-0002-1511-5324[6]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Biociências, Rio Claropt

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