Journal Article
The complete mitochondrial genome of the Mexican blind brotula Typhlias pearsei (Ophidiiformes: Dinematichthydae): an endemic and troglomorphic cavefish from the Yucatán Peninsula karst aquifer
Arroyave, J., Mar‐Silva, A.,F. and Díaz-Jaimes, P.
Record Number:
5862
Year:
2022
Journal:
Mitochondrial DNA Part B
Pages:
1151-1153
Volume:
7:6
Notes:
Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is cited
Abstract:
In this study we report the first complete and annotated mitochondrial genome of the Mexican blind
brotula, Typhlias pearsei, a troglobitic cavefish endemic to the Yucatan peninsula karst aquifer in southeastern
Mexico. Genomic sequencing was accomplished via next generation sequencing (NGS). The
resulting mitogenome is 16,813 bp long and, as in most vertebrates, consists of a total of 37 genes (13
PCGs, 2 rRNAs, 22 tRNAs) and two non-coding regions (control region and origin of the light strand
replication). Other than a rearrangement in the position of two tRNAs (shuffling between tRNA-Ile and
tRNA-Gln), the mitogenome of T. pearsei exhibits a genomic composition and organization similar to
that of most teleost mitogenomes. Besides offering this valuable genomic resource for future studies,
the resulting mitogenome was used in a comparative context to test the current higher-level taxonomy
of ophidiiform fishes and to examine the phylogenetic position of T. pearsei among viviparous brotulas.
Our phylogenetic results confirm those from the most comprehensive molecular phylogenetic study of
the group.
Times Cited:
2