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vol.64 issue2LAND MOLLUSCA OF CHILE. SYNONYMIES AND RELATES PROBLEMS: 1. FFAMILIES VERONICELLIDAE, PIPILLIDAE Y ACHATINELLIDAE (GASTROPODA: PULMONATA)Cu, Pb AND Zn DISTRIBUTION IN NEARSHORE WATERS IN SAN JORGE BAY, NORTHERN CHILE author indexsubject indexarticles search
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Gayana (Concepción)

Print version ISSN 0717-652XOn-line version ISSN 0717-6538

Abstract

JARA-SEGUEL, Pedro et al. QUANTITATIVE KARYOTYPE OF DIPLODON CHILENSIS (GRAY 1828) (BIVALVIA:HYRIIDAE). Gayana (Concepc.) [online]. 2000, vol.64, n.2, pp.189-193. ISSN 0717-652X.  http://dx.doi.org/10.4067/S0717-65382000000200008.

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.

Keywords : Hyriidae; Diplodon chilensis; karyotype; freshwater; bivalves; Southern Chile; Hyriidae; Diplodon chilensis; cariotipo; bivalvos dulceacuícolas; sur de Chile.

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