Comparative cytogenetic analysis in 13 tortoise beetles (coleoptera: chrysomelidae: cassidinae) from brazil

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dc.contributor.authorLopes, Amalia T.
dc.contributor.authorFernandes, Flavia R.
dc.contributor.authorSchneider, Marielle C. [UNIFESP]
dc.date.accessioned2019-01-21T10:29:52Z
dc.date.available2019-01-21T10:29:52Z
dc.date.issued2016
dc.description.abstractIn the present work, we have characterized the chromosomes of 13 Cassidinae beetles, belonging to four tribes, the broad aim being to increase the cytogenetic data and establish the mechanisms involved in chromosome evolution of this subfamily, which appear to be conserved karyotypically, i.e. 2n = 16 + Xy(p). The analysis of mitotic and meiotic cells revealed a high diversity of diploid numbers (2n = 18, 2n = 22, 2n = 26, 2n = 32, 2n = 36, 2n = 40, 2n = 42), and the presence of sex chromosome system of the Xy(p) type in most species, with the exception of two representatives that exhibited Xy(r) and XY systems. C-banding showed constitutive heterochromatin predominantly localized in the pericentromeric region of the chromosomes, but differences regarding the number of chromosomes with positive C-bands, intensity of the blocks, and presence of additional bands in autosomes and/or sex chromosomes were observed among the species investigated. Our data revealed that the karyotype 2n = 16 + Xy(p) does not occur in all 13 tribes of the Cassidinae characterized cytogenetically, seeming to be only a shared feature among the species of the Cassidini. Variations in the C-band pattern, mainly in closely related species, suggest that the interspecific karyotype diversification occurred as a result of changes in the quantity and distribution of constitutive heterochromatin. The occurrence of the Xy(p) sex chromosome system in the tribe Mesomphaliini, which showed the highest diversity of simple and multiple systems among the coleopteran as a whole, reinforces the view that derived systems originated by chromosome rearrangements involving the Xy(p) ancestral system.en
dc.description.affiliationUniversidade Estadual Paulista, UNESP, Departamento de Biologia, Avenida 24A, 1515, Bela Vista, 13506-900, Rio Claro, São Paulo, Brasil
dc.description.affiliationMuseu Paraense Emílio Goeldi, MPEG, Departamento de Entomologia, Avenida Perimetral, 1901, Terra Firme, 66077-830, Belém, Pará, Brasil
dc.description.affiliationUniversidade Federal de São Paulo, UNIFESP, Departamento de Ciências Biológicas, Avenida Professor Artur Riedel, 275, 09972-270, Diadema, São Paulo, Brasil [Lopes, Amalia T.] Univ Estadual Paulista, UNESP, Dept Biol, Ave 24A,1515 Bela Vista, BR-13506900 Rio Claro, SP, Brazil
dc.description.affiliation[Fernandes, Flavia R.] Museu Paraense Emilio Goeldi, MPEG, Dept Entomol, Ave Perimetral 1901, BR-66077830 Belem, Para, Brazil
dc.description.affiliation[Schneider, Marielle C.] Univ Fed Sao Paulo, UNIFESP, Dept Ciencias Biol, Ave Prof Artur Riedel 275, BR-09972270 Diadema, SP, Brazil
dc.description.affiliationUnifespUniversidade Federal de São Paulo, UNIFESP, Departamento de Ciências Biológicas, Avenida Professor Artur Riedel, 275, 09972-270, Diadema, São Paulo, Brasil
dc.description.sourceWeb of Science
dc.description.sponsorshipFundacao de Amparo a Pesquisa do Estado de Sao Paulo, FAPESP [2011/21643-1, 2012/12619-2]
dc.description.sponsorshipConselho Nacional de Desenvolvimento Cientifico e Tecnologico, CNPq [302416/2013-7]
dc.description.sponsorshipIDFAPESP: 2011/21643-1
dc.description.sponsorshipIDFAPESP: 2012/12619-2
dc.description.sponsorshipIDCNPq: 302416/2013-7
dc.format.extent352-363
dc.identifierhttp://dx.doi.org/10.14411/eje.2016.046
dc.identifier.citationEuropean Journal Of Entomology. Ceske budejovice, v. 113, p. 352-363, 2016.
dc.identifier.doi10.14411/eje.2016.046
dc.identifier.issn1802-8829
dc.identifier.urihttp://repositorio.unifesp.br/handle/11600/49444
dc.identifier.wosWOS:000380706700042
dc.language.isoeng
dc.publisherAssoc Arquivos Neuro- Psiquiatria
dc.relation.ispartofEuropean Journal Of Entomology
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectColeopteraen
dc.subjectChrysomelidaeen
dc.subjectC-Banden
dc.subjectChromosomeen
dc.subjectKaryotypeen
dc.subjectMeiosisen
dc.subjectSex Chromosome Systemen
dc.subjectConstitutive HeterochromatinSex-Determining Mechanismen
dc.subjectChromosome-Numberen
dc.subjectRepetitive Dnaen
dc.subjectElateridaeen
dc.subjectHispinaeen
dc.subjectHeterochromatinen
dc.subjectScarabaeidaeen
dc.subjectConoderinien
dc.subjectAlticinaeen
dc.subjectEvolutionen
dc.titleComparative cytogenetic analysis in 13 tortoise beetles (coleoptera: chrysomelidae: cassidinae) from brazilen
dc.typeinfo:eu-repo/semantics/article
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