Autor(es): Bulau, Sandra Eloisa ; Kretschmer, Rafael ; Gunski, Ricardo Jos? ; Garnero, Anal?a del Valle ; O'Brien, Patricia C. M ; Ferguson-Smith, Malcolm A ; Oliveira, Edivaldo Herculano Correa de ; Freitas, Thales Renato Ochotorena de
Data: 2019
Origem: Oasisbr
Assunto(s): Passeriformes / gen?tica; Polimorfismo Gen?tico / gen?tica; Colora??o Cromoss?mica; Cromossomos / gen?tica; Aves; Zonotrichia capensis; Pardal-de-Bico-de-Colar
Universidade Federal do Rio Grande do Sul. Programa de P?s-gradua??o em Gen?tica e Biologia Molecular (PPGBM). Porto Alegre, RS, Brazil.
Universidade Federal do Rio Grande do Sul. Programa de P?s-gradua??o em Gen?tica e Biologia Molecular (PPGBM). Porto Alegre, RS, Brazil.
Universidade Federal do Pampa. Programa de P?s-gradua??o em Ci?ncias Biol?gicas (PPGCB). S?o Gabriel, RS, Brazil.
Universidade Federal do Pampa. Programa de P?s-gradua??o em Ci?ncias Biol?gicas (PPGCB). S?o Gabriel, RS, Brazil.
University of Cambridge. Cambridge Resource Centre for Comparative Genomics. Cambridge, United Kingdom.
University of Cambridge. Cambridge Resource Centre for Comparative Genomics. Cambridge, United Kingdom.
Universidade Federal do Par?. Instituto de Ci?ncias Exatas e Naturais. Bel?m, PA, Brazil / Minist?rio da Sa?de. Secretaria de Vigil?ncia em Sa?de. Instituto Evandro Chagas. Laborat?rio de Cultura de Tecidos e Citogen?tica. Ananindeua, PA, Brasil.
Universidade Federal do Rio Grande do Sul. Programa de P?s-gradua??o em Gen?tica e Biologia Molecular (PPGBM). Porto Alegre, RS, Brazil.
Zonotrichia capensis is widely distributed in the Neotropics. Previous cytogenetic studies demonstrated the presence of polymorphisms in two chromosome pairs (ZCA2 and ZCA4). Here, we report results based on comparative chromosome painting, using probes derived from Gallus gallus and Leucopternis albicollis, focused on characterizing the chromosome organization of Z. capensis. Our results demonstrate the conservation of ancestral syntenies as observed previously in other species of passerine. Syntenies were rearranged by a series of inversions in the second chromosome as described in other Passeriformes, but in this species, by using probes derived from L. albicollis we observed an extra inversion in the second chromosome that had not previously been reported. We also report a paracentric inversion in pair 3; this chromosome corresponds to the second chromosome in Zonotrichia albicollis and may indicate the presence of ancestral inversions in the genus. The chromosomal inversions we found might be important for understanding the phenotypic variation that exists throughout the distribution of Z. capensis
