![Sample our Bioscience journals, sign in here to start your access, Latest two full volumes FREE to you for 14 days]({"type":"image" , "src" : "/sda/5925/TOC-Subject-Sample-2021-Bioscience.jpg"})
Abstract
The complete mitochondrial genome of the Chinese lake gudgeon Sarcocheilichthys sinensis was first determined in this study. It is a circular DNA double strand of 16,684 bp in length, encodes genes for 13 proteins, 2 ribosomal RNA subunits, 22 transfer RNAs and an A + T-rich control region with the typical gene order in vertebrate mitogenomes. Overall nucleotide composition is 30.5% A, 26.6% C, 16.7% G and 26.3% T. Three start codons (ATG, GTG and ATA) and three stop codons (TAG, TAA and T) were found in all protein-coding genes. The tRNA-SerAGY lacked the dihydrouridine arm and could not fold into typical cloverleaf secondary structure. The origin of L-strand replication was identified between the tRNA-Asn and tRNA-Cys genes.
Declaration of interest
This study was supported by the Natural Science Foundation of Zhangzhou City (ZZ2012J16). The authors report no conflicts of interest. The authors alone are responsible for the content and writing of the paper.