Gayana (Jan 2000)

QUANTITATIVE KARYOTYPE OF DIPLODON CHILENSIS (GRAY 1828) (BIVALVIA:HYRIIDAE) CARIOTIPO CUANTITATIVO DE DIPLODON CHILENSIS (GRAY 1828) (BIVALVIA:HYRIIDAE)

  • Pedro Jara-Seguel,
  • Santiago Peredo,
  • Claudio Palma-Rojas,
  • Esperanza Parada,
  • Gladys Lara

Journal volume & issue
Vol. 64, no. 2
pp. 189 – 193

Abstract

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The karyotype of a freshwater population of Diplodon chilensis located in La Poza area of the Villarrica Lake (39º18'S; 72º05'W), Southern Chile, was studied. The chromosomes were obtained by squash of cleaving embryos, previously treated with colchicine and fixed in ethanol-acetic acid 3:1 at 4ºC and stained using the Feulgen reaction. Diplodon chilensis showed a diploid karyotype of 2n = 34, with metacentric and submetacentric chromosomes. This work is the first approach to cytogenetic characterization of Chilean populations of this species.

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