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vol.72 issue2ARCHAEOLOGICAL RECORD FOR DIPLODON (SPIX, 1827) (BIVALVIA, HYRIIDAE) IN CHILECHILEAN MARINE MOLLUSCA OF NORTHERN PATAGONIA COLLECTED DURING THE CIMAR-10 FJORDS CRUISE author indexsubject indexarticles search
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Gayana (Concepción)

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

Abstract

JARA-SEGUEL, Pedro; VALDEBENITO, Iván  and  PALMA-ROJAS, Claudio. NUCLEAR DNA CONTENT IN GALAXIAS PLATEI (STEINDACHNER, 1898) (TELEOSTEI: OSMERIFORMES: GALAXIIDAE). Gayana (Concepc.) [online]. 2008, vol.72, n.2, pp.196-201. ISSN 0717-652X.  http://dx.doi.org/10.4067/S0717-65382008000200009.

Galaxias platei is a Chilean endemic fish, with distribution in an extensive geographic area from the central-southern zone to the Chilean and Argentinean Patagonia. In this work, the somatic nuclear DNA content (2C-value) of Galaxias platei (Galaxiidae) was determined using Feulgen microdensitometry on erythrocyte nuclei. The 2C-value of G platei was, 1.88 + 0.16 pg and its C-value is equivalent to 0.94 pg (921,2 Mbp). The C-value of G platei was within the range recorded for others osmeriform species (values from 0.62 to 3.2 pg), and lower to the value previously described for G maculatus (C = 1.105 pg). These data contribute to increase the genome antecedents so far available for the genus Galaxias, which together with previous chromosome analysis, may be utile to evaluate those generic and specific relationships proposed for the family Galaxiidae.

Keywords : Osmeriformes; Galaxiidae; Galaxias platei; 2C-value.

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