Abstract
This study determined the mitochondrial genome (mitogenome) of Chanodichthys mongolicus from China's Qiantang River and analyzed its phylogenetic history in the Subfamily Cultrinae. Next-generation sequencing was used to obtain the mitogenome of C. mongolicus, GenBank Accession Number MZ032228. The mitochondrial genome length of C. mongolicus from China's Qiantang River is 16,622 bp. The genome contains 13 protein-coding genes, 22 transfer RNAs, two ribosomal RNAs, and two central noncoding regions (the control region and the origin of light strand replication). Based on BLAST comparisons, the sequence identity of C. mongolicus MZ032228 from China's Qiantang River was 99.84% to that of Ancherythroculter wangi MG783573 from China's Nei River, 99.75% to C. mongolicus AP009060 from Russia's Black River. The phylogenetic analysis is consistent with BLAST comparisons in confirming that A. wangi MG783573 and C. mongolicus MZ032228 show a high genetic similarity. This study also confirms mitochondrial DNA heteroplasmy in C. mongolicus for the first time and documents 35 heterogeneous loci that were detected.
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