You are in the accessibility menu

Please use this identifier to cite or link to this item:
Full metadata record
DC FieldValueLanguage
dc.contributor.authorPaula-Neto, E.-
dc.contributor.authorAraujo, D.-
dc.contributor.authorCarvalho, L. S.-
dc.contributor.authorCella, D. M.-
dc.contributor.authorSchneider, M. C.-
dc.identifier.citationGenetics and Molecular Research, v. 12, n. 3, p. 3726-3734, 2013.-
dc.description.abstractWe analyzed mitotic and meiotic cells of a Brazilian amblypygid, Heterophrynus longicornis, using conventional and molecular cytogenetic techniques (Giemsa staining, C-banding, Ag-NOR, and FISH with rDNA probe). This is the first study that focuses solely on amblypygid chromosomes; it was undertaken to add data on cytogenetic knowledge of this group and contribute to the understanding of chromosome evolution in the Arachnida. We found 2n = 66 for male and female individuals, monocentric chromosomes, and absence of morphologically differentiated sex chromosomes. C-banding showed heterochromatin in the pericentromeric region of most chromosomes. Mitotic and meiotic nuclei submitted to silver impregnation and FISH revealed, respectively, Ag-NORs and ribosomal genes in the terminal region of two chromosome pairs. Most chromosome features that we observed in H. longicornis are shared with species of other arachnid orders; however, the absence of morphologically differentiated sex chromosomes in amblypygid contrasts with the remarkable variety of sex chromosome systems recorded for the Araneae. Consequently, we conclude that analysis of species of the Tetrapulmonata clade is useful for understanding the trends of sex chromosome evolution in this arachnid group. © FUNPEC-RP.en
dc.subjectChromosome evolution-
dc.subjectDiploid number-
dc.subjectHeterophrynus longicornis-
dc.subjectSex chromosome system-
dc.titleChromosomal characteristics of a Brazilian whip spider (Amblypygi) and evolutionary relationships with other arachnid ordersen
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.contributor.institutionUniversidade Federal de Mato Grosso do Sul (UFMS)-
dc.contributor.institutionUniversidade Federal do Piauí (UFPI)-
dc.contributor.institutionUniversidade Federal de São Paulo (UNIFESP)-
dc.description.affiliationDepartamento de Biologia Universidade Estadual Paulista, Rio Claro, SP-
dc.description.affiliationSetor de Biologia Geral Centro de Ciências Biológicas e da Saúde Universidade Federal de Mato Grosso do Sul, Campo Grande, MS-
dc.description.affiliationUniversidade Federal do Piauí, Campus Amílcar Ferreira Sobral, Floriano, PI-
dc.description.affiliationUniversidade Federal de São Paulo, Diadema, SP-
dc.description.affiliationUnespDepartamento de Biologia Universidade Estadual Paulista, Rio Claro, SP-
dc.rights.accessRightsAcesso aberto-
dc.relation.ispartofGenetics and Molecular Research-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

There are no files associated with this item.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.