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AutorCastiglia, Riccardo
AutorVilella, Oscar Flores
AutorBezerra, Alexandra Maria Ramos
AutorMuñoz, Antonio
AutorGomung, Ekaterina
Fecha de acceso2015-08-19T13:49:37Z
Fecha de disponibilización2015-08-19T13:49:37Z
Fecha de publicación2013
ReferenciaCASTIGLIA, Riccardo; et al. Pattern of chromosomal changes in ‘beta’ Anolis (Norops group) (Squamata: Polychrotidae) depicted by an ancestral state analysis. Zoological Studies, 52:60, 12p. 2013.pt_BR
ISSN1810-522Xpt_BR
URIhttps://www.arca.fiocruz.br/handle/icict/11588
Idiomaengpt_BR
EditorSpringer OpenJournalpt_BR
Derechos de autoropen access
TítuloPattern of chromosomal changes in ‘beta’ Anolis (Norops group) (Squamata: Polychrotidae) depicted by an ancestral state analysispt_BR
Tipo del documentoArticle
DOI10.1186/1810-522X-52-60pt_BR
Resumen en InglésBackground: Neotropical lizards, genus Anolis (Polychrotidae), with nearly 380 species, are members of one of the most diversified genera among amniotes. Herein, we present an overview of chromosomal evolution in ‘beta’ Anolis (Norops group) as a baseline for future studies of the karyotypic evolution of anoles. We evaluated all available information concerning karyotypes of Norops, including original data on a recently described species, Anolis unilobatus. We used the phylogeny of Norops based on DNA sequence data to infer the main pattern of chromosomal evolution by means of an ancestral state analysis (ASR). Results: We identified 11 different karyotypes, of which 9 in the species had so far been used in molecular studies. The ASR indicated that a change in the number of microchromosomes was the first evolutionary step, followed by an increase in chromosome numbers, likely due to centric fissions of macrochromosomes. The ASR also showed that in nine species, heteromorphic sex chromosomes most probably originated from six independent events. Conclusions: We observed an overall good correspondence of some characteristics of karyotypes and species relationships. Moreover, the clade seems prone to sex chromosome diversification, and the origins of five of these heteromorphic sex chromosome variants seem to be recent as they appear at the tip nodes in the ancestral character reconstruction. Karyotypic diversification in Norops provides an opportunity to test the chromosomal speciation models and is expected to be useful in studying relationships among anole species and in identifying cryptic taxa.pt_BR
AfiliaciónUniversità di Roma ‘La Sapienza’. Dipartimento di Biologia e Biotecnologie ‘Charles Darwin". Rome, Italy.pt_BR
AfiliaciónUniversidad Nacional Autónoma de México. Facultad de Ciencias. Museo de Zoologia. Coyoacán, Mexico, DF, Mexico.pt_BR
AfiliaciónFundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Biologia e Parasitologia de Mamíferos Silvestres Reservatórios. Rio de Janeiro, RJ, Brasil / Universidade de Brasília. Departamento de Zoologia. Brasília, DF, Brasil.pt_BR
Afiliación5El Colegio de la Frontera Sur - San Cristóbal de las Casas Carr. Panamericana. San Cristóbal de las Casas, Chiapas, Mexico.pt_BR
AfiliaciónUniversità di Roma ‘La Sapienza’. Dipartimento di Biologia e Biotecnologie ‘Charles Darwin". Rome, Italy.pt_BR
Palavras clave en InglêsAnolept_BR
Palavras clave en InglêsAnolispt_BR
Palavras clave en InglêsChromosomal evolutionpt_BR
Palavras clave en InglêsCytogeneticspt_BR
Palavras clave en InglêsNoropspt_BR
Palavras clave en InglêsSex chromosomespt_BR
Palavras clave en InglêsSystematicspt_BR
DeCSClassificaçãopt_BR
DeCSCitogenéticapt_BR
DeCSCromossomos Sexuaispt_BR
xmlui.metadata.dc.subject.ods05 Igualdade de gênero


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