The molecular cytogenetic characterization of conopophaga lineata indicates a common chromosome rearrangement in the parvorder furnariida (Aves, Passeriformes)
Oliveira, Thays Duarte de
Bertocchi, Natasha Ávila
O'Brien, Patricia C. M
Ferguson-Smith, Malcolm A
Garnero, Analía del Valle
Oliveira, Edivaldo Herculano Corrêa de
Gunski, Ricardo José
Cytogenetic analyses of the Suboscines species are still scarce, and so far, there is no karyotype description of any species belonging to the family Conopophagidae. Thus, the aim of this study is to describe and analyze the karyotype of Conopophaga lineata by chromosome painting using Gallus gallus (GGA) probes and to identify the location of the 18/28S rDNA cluster. Metaphases were obtained from fibroblast culture from two individuals of C. lineata. We observed a diploid number of 2n=78. GGA probes showed that most ancestral syntenies are conserved, except for the fission of GGA1 and GGA2, into two distinct pairs each. We identified the location of 18S rDNA genes in a pair of microchromosomes. The fission of the syntenic group corresponding to GGA2 was observed in other Furnariida, and hence may correspond to a chromosomal synapomorphy for the species of Parvorder Furnariida.
ReferenciaOLIVEIRA, Thays Duarte de et al. The molecular cytogenetic characterization of conopophaga lineata indicates a common chromosome rearrangement in the parvorder furnariida (Aves, Passeriformes). Genetics and Molecular Biology, v. 43, n. 3, e20200018, June 2020.
DeCsPasseriformes / anatomia & histologia
Passeriformes / genética
Coloração Cromossômica / métodos
Rearranjo Gênico / genética