The complete mitochondrial genomes of three imperiled cyprinid fishes Bonytail (Gila elegans), Rio Grande Silvery Minnow (Hybognathus amarus) and Loach Minnow (Tiaroga cobitis)

Abstract

Gila elegans, Hybognathus amarus, and Tiaroga cobitis (Family Cyprinidae, Order Cypriniformes) are endemic and endangered fishes in the southwestern United States. We present complete mitochondrial genomes for each species. Each mitochondrion consisted of 13 protein-coding genes, 2 ribosomal (rRNA) genes, 22 transfer RNA (tRNA) genes, and a single control region (D-loop), and gene order was consistent with other cyprinid fishes. Total genome lengths were 16,593 base pairs (bp) for G. elegans, 16,705 bp for H. amarus, and 16,802 for T. cobitis. The GC content in G. elegans and H. amarus was 44%, but higher in T. cobitis at 48%. Phylogenetic trees were generated to confirm relationships inferred via novel mitogenomes, and best-supported trees were consistent with previous research.

Keywords:

• Bonytail
• Rio Grande Silvery Minnow
• Loach Minnow
• mitogenomes
• conservation genetics

Acknowledgements

The authors gratefully acknowledge the expert assistance of George Rosenberg, Lijing Bu and Melissa Sanchez (UNM Core Facility) and Emily DeArmon (Museum of Southwestern Biology).

Disclosure statement

No potential conflict of interest was reported by the author(s). Research reported in this publication was supported in part by the National Institute of General Medical Sciences of the National Institutes of Health under award number P30 GM110907. The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health.

Data availability statement

The mitochondrial genome sequences reported here are available on Genbank using the following accession numbers:

MT364325 (https://www.ncbi.nlm.nih.gov/nuccore/MT364325)

MT364326 (https://www.ncbi.nlm.nih.gov/nuccore/MT364326)

MT364327 (https://www.ncbi.nlm.nih.gov/nuccore/MT364327).