The karyotype of adenomera diptyx (boettger 1885) (anura, leptodactylidae) from northeastern Argentina
In this work we analyzed the karyotype of five populations of Adenomera diptyx from Argentina after conventional staining, Ag-NOR and C-banding. All specimens presented 2n = 26 and FN = 34. The karyotype was formed by three submetacentric, one metacentric and nine telocentric pairs. Silver stainin...
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| Autores principales: | , |
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| Formato: | Artículo |
| Lenguaje: | Español |
| Publicado: |
Sociedade Brasileira de Genética
2022
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| Materias: | |
| Acceso en línea: | http://repositorio.unne.edu.ar/handle/123456789/48888 |
| Aporte de: |
| Sumario: | In this work we analyzed the karyotype of five populations of Adenomera diptyx from Argentina after conventional
staining, Ag-NOR and C-banding. All specimens presented 2n = 26 and FN = 34. The karyotype was formed by three
submetacentric, one metacentric and nine telocentric pairs. Silver staining revealed that the NOR was located on a
secondary constriction in pair 7. C- banding evidenced constitutive heterochromatin at the pericentromeric region of
all chromosomes. The karyotype of A. diptyx was similar to that of A. hylaedactyla (2n = 26, FN = 34) and different
from that of A. andreae (2n = 26, FN = 40) in the fundamental number and secondary constriction position. It also dif-
fered from the karyotypes of A. marmorata (2n = 24, FN = 34 and 36) and of A. aff. bokermanni (2n = 23, FN = 34) in
diploid number. Until a comprehensive cytogenetic analysis of all the species of the genus is performed, their chro-
mosome evolution will remain poorly understood. |
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