Complete mitochondrial genome of the Salt Creek pupfish, Cyprinodon salinus salinus: characterization and identification of single nucleotide polymorphisms (SNPs)

Ashley A Del Core; Catie S Cleveland; Sean C Lema

doi:10.1080/23802359.2021.1945964

Complete mitochondrial genome of the Salt Creek pupfish, Cyprinodon salinus salinus: characterization and identification of single nucleotide polymorphisms (SNPs)

Mitochondrial DNA B Resour. 2021 Jul 5;6(8):2229-2232. doi: 10.1080/23802359.2021.1945964. eCollection 2021.

Authors

Ashley A Del Core¹, Catie S Cleveland¹, Sean C Lema¹

Affiliation

¹ Biological Sciences Department, California Polytechnic State University, San Luis Obispo, CA, USA.

Abstract

The Salt Creek pupfish, Cyprinodon salinus salinus Miller, 1943 is endemic to Death Valley, California, USA, and resides as a single population within one of the most extreme inland aquatic environments capable of supporting fish. Here we report the sequencing of complete 16,499 base pair (bp) mitochondrion genomes from four C. salinus salinus individuals. The mitochondrial genome of C. salinus salinus comprises 13 protein-coding regions, 12S and 16S rRNAs, 22 tRNAs, and an 832 bp D-loop region. The first reported single nucleotide polymorphisms (SNPs) were identified within the mtDNA of C. salinus salinus, with the four mitogenomes exhibiting only 0.0485% nucleotide sequence divergence indicative of low intraspecific variation. These complete mitogenomes will facilitate future genetic analyses of intraspecific diversity between the two described subspecies of C. salinus as well as other Cyprinodon pupfishes in southwestern North America.

Keywords: Cyprinodontiformes; Pupfish; genetic variation; mitochondrial DNA; mtDNA.

Grants and funding

This research was generously supported financially by the William and Linda Frost Fund in the California Polytechnic State University College of Science and Mathematics.