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Morphometric and molecular data on two mitochondrial genes of a newly discovered chimaeran fish (Hydrolagus melanophasma, Chondrichthyes) |
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| Authors: | José De La Cruz-Agüero Francisco Javier García-Rodríguez Víctor Manuel Cota-Gómez Felipe Neri Melo-Barrera Rogelio González-Armas |
| Institution: | 1. Colecci??n Ictiol??gica, Centro Interdisciplinario de Ciencias Marinas, Instituto Polit??cnico Nacional, Baja California Sur, La Paz, 23096, Mexico 2. Lab de Din??mica Poblacional, Centro Interdisciplinario de Ciencias Marinas, Instituto Polit??cnico Nacional, Baja California Sur, La Paz, 23096, Mexico 3. Lab de Ictioplancton, Centro Interdisciplinario de Ciencias Marinas, Instituto Polit??cnico Nacional, Baja California Sur, La Paz, 23096, Mexico |
| Abstract: | Fresh and preserved (type material) specimens of the black ghost chimaera Hydrolagus melanophasma were compared for morphometric characteristics. A molecular comparison was also performed on two mitochondrial gene sequences (12S rRNA and 16S rRNA gene sequences). While significant differences in measurements were found, the differences were not attributable to sexual dimorphism or the quality of the specimens, but to the sample size and the type of statistical tests. The result of the genetic characterization showed that 12S rRNA and 16S rRNA genes represented robust molecular markers that characterized the species. |
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