| chromosomal variability between populations of electrophorus electricus gill, 1864 (pisces: gymnotiformes: gymnotidae). | the electric eel, electrophorus electricus, the only species of its genus, has a wide distribution in the amazon and orinoco drainages. there is little previous information regarding the population variation in e. electricus, with only basic karyotype data from two populations (amazon and araguaia rivers). karyotypic description and analysis of co1 barcode sequences were performed for e. electricus from three localities (caripetuba, irituia, and maicuru rivers). all samples share the 2n=52 (42 m ... | 2015 | 25695141 |