Data/hora: 08/06/2024 19:07:08

Provedor de dados: | 74
País: | Brazil
Título: | Comparative analyses of three swallow species (Aves, Passeriformes, Hirundinidae): Insights on karyotype evolution and genomic organization
Autores: | Barcellos,Suziane Alves; Kretschmer,Rafael; Souza,Marcelo Santos de; Costa,Alice Lemos; Degrandi,Tiago Marafiga; Lopes,Cassiane Furlan; Ferguson-Smith,Malcolm A.; Pereira,Jorge; Oliveira,Edivaldo Herculano Correa de; Gunski,Ricardo José; Garnero,Analía del Valle.
Data: | 2020-01-01
Ano: | 2020
Palavras-chave: | Homology; Molecular cytogenetics; Fluorescent in situ hybridization; Hirundinidae.
Resumo: | Abstract Despite the richness of species in the Hirudinidae family, little is known about the genome organization of swallows. The Progne tapera species presents genetic and morphological difference when compared to other members of the same genus. Hence, the aims of this study were to analyze the chromosomal evolution of three species Progne tapera, Progne chalybea and Pygochelidon cyanoleuca - by comparative chromosome painting using two sets of probes, Gallus gallus and Zenaida auriculata, in order to determine chromosome homologies and the relationship between these species. All karyotypes exhibited 76 chromosomes with similar morphology, except for the 5th, 6th and 7th chromosome pairs in P. cyanoleuca. Additionally, comparative chromosome painting demonstrated the same hybridization pattern in the two Progne, which was similar to the putative avian ancestral karyotype, except for the centric fission in the first pair, as found in other Passeriformes. Thus, these data display a close relationship between the Progne species. Although P. cyanoleuca demonstrated the same fission in the first pair of the ancestral syntenic (GGA1), it also showed an additional chromosomal rearrangement for this species, namely a fusion with a microchromosome in the seventh pair.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000100201
Editor: | Sociedade Brasileira de Genética
Relação: | 10.1590/1678-4685-gmb-2019-0232
Formato: | text/html
Fonte: | Genetics and Molecular Biology  v.43 n.1 2020
Fonte: | info:eu-repo/semantics/openAccess