Artículo
Cytogenetics of four foam-nesting frog species of the Physalaemus gracilis group (Anura, Leptodactylidae)
Ferro, Juan Martín
; Taffarel, Alberto
; Tomatis, Cristian Gabriel
; Borteiro, Claudio; Kolenc, Francisco; Pretto Gatto, Kaleb; Lourenço, Luciana B.; Baldo, Juan Diego
Fecha de publicación:
06/2022
Editorial:
Academia Brasileira de Ciencias
Revista:
Anais da Academia Brasileira de Ciencias
ISSN:
0001-3765
e-ISSN:
1678-2690
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Intending to increase the knowledge about cytogenetics of Physalaemus and the sparsely studied P. gracilis group, we analyzed the karyotypes of P. carrizorum, P. gracilis, P. lisei, and P. sp. aff. gracilis. We studied chromosome morphology, heterochromatin patterns, Ag-NORs location and mapped the repetitive DNA sequence PcP190. All species showed diploid karyotypes composed of 22 bi-armed chromosomes and similar C- bands and Ag-NOR patterns. C-bands were mainly centromeric and pericentromeric; non-centromeric C-bands were detected on the telomeres of pair 1 in P. lisei, although polymorphic, and interstitially on pair 10 of P. gracilis. This last character is useful to distinguish P. gracilis from its sibling species P. sp. aff. gracilis. The Ag- NOR sites were detected on the long arms of chromosome pair 8 but with a variable position among species. Clusters of PcP190 showed centromeric and pericentromeric positions coincident with conspicuous C-bands, on pairs 2 and 9 in P. gracilis and P. sp. aff. gracilis, pair 3 in P. carrizorum, and pair 7 in P. lisei. These results significantly increase the knowledge about Physalaemus cytogenetics and encourage further studies on the satellite PcP190 in other genera of Leiuperinae to better understand its taxonomic distribution and the evolutionary dynamics.
Palabras clave:
AG-NORS
,
C-BANDS
,
LEIUPERINAE
,
PCP190
,
SATDNA
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(IBS)
Articulos de INSTITUTO DE BIOLOGIA SUBTROPICAL
Articulos de INSTITUTO DE BIOLOGIA SUBTROPICAL
Citación
Ferro, Juan Martín; Taffarel, Alberto; Tomatis, Cristian Gabriel; Borteiro, Claudio; Kolenc, Francisco; et al.; Cytogenetics of four foam-nesting frog species of the Physalaemus gracilis group (Anura, Leptodactylidae); Academia Brasileira de Ciencias; Anais da Academia Brasileira de Ciencias; 94; e202; 6-2022; 1-20
Compartir
Altmétricas