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We newly sequenced the near complete mitochondrial genome ofPolypedates braueri. The total length of theP. braueripartial mitogenome is 13 144 bp, with GenBank accession no. KT921226. It consists of 11 protein-coding genes (PCGs), 2 ribosomal RNA genes (rRNA), and 18 transfer RNA genes (tRNA). Most of the genes are encoded on the H-strand, except for seven tRNA and ND6, which are encoded on the L-strand. Our mitogenomic phylogenetic tree shows that the relationships between the generaRhacophorusandPolypedateswere well supported. [ABSTRACT FROM PUBLISHER]

The entire mitogenome ofTylototriton kweichowensisis 16 727 bp in length. It consists of 13 protein-coding genes (PCGS), 2 ribosomal RNA genes (rRNA), 22 transfer RNA genes (tRNA), and 1 control region (CR). Except for ND6 subunit and 8 tRNA genes are distributed on the L-strand, all the other PCGs and tRNA genes are located on the H-strand. “ATG” and “GTG” are the start codons of the PCGs, “TAA”, “AGA”, “TA–” and “T––” are the stop codons. Most of the tRNA genes can be folded into typical clover-leaf secondary structure. The genome ofT. kweichowensishas two repeat sequences in the cob-noncoding region. Mitogenomic phylogenetic analysis (NJ tree) robustly resolved the genus-level relationship among the three generaTylototriton, Echinotriton, andPleurodeles, and which is congruent with the previous molecular phylogeny results. [ABSTRACT FROM AUTHOR]

We newly sequenced the mitochondrial genome ofTylototriton wenxianensis. The total length of theT. wenxianensismitogenome is 16 265 bp, with GenBank accession number KR733683. It consists of 13 protein-coding genes (PCGs), two ribosomal RNA genes (rRNA), 22 transfer RNA genes (tRNA), and one control region (CR). Most of the genes are encoded on the H-strand, except for eight tRNA and ND6, which are encoded on the L-strand. Our mitogenomic phylogenetic tree showed that the relationships among the generaTylototriton, Echinotriton, andPleurodeleswere well supported, and which is consistent with the previous molecular phylogeny. [ABSTRACT FROM AUTHOR]

The complete mitogenome ofTylototriton shanjingis 16,661 bp in length with GenBank accession number KR154461, which contains 13 protein-coding genes (PCGs), 22 transfer RNA genes (tRNA), 2 ribosomal RNA genes (rRNA), and 1 control region (CR). The overall base composition of this mitogenome is biased toward AT content at 59.45%. Most of the PCGs and tRNA genes are located on the H-strand, except for ND6 subunit gene and eight tRNA genes, which were distributed on the L-strand. The PCGs used “ATG” and “GTG” as the start codons, while “TAA”, “TAG”, “AGA”, and “T–” are used as stop codons. Almost all tRNA genes were folded into typical cloverleaf secondary structures. TheT. shanjinggenome had two tandem repeat sequences in the cob-noncoding region. The mitogenomic phylogenetic analyses shows that the generaEchinotriton and Tylototritonwere clustered into a strong supported monophyletic clade, which is a sister clade to the genusPleurodeles, this confirms the previous phylogenetic results. [ABSTRACT FROM AUTHOR]

Tylototriton taliangensiswas listed as a Near Threatened amphibian in IUCN red list. In this study, we sequenced the complete mitochondrial (mt) genome of this species (GenBank: KP979646) and found it contains 16,265 base pairs, which encode 13 protein-coding genes (PCGs), 22 transfer RNA genes (tRNA), 2 ribosomal RNA genes (rRNA) and 1 control region (CR). We also found that almost all PCGs and tRNA genes are located on the H-strand, except for ND6 subunit gene and eight tRNA genes, which were distributed on the L-strand. The PCGs used “ATG” and “GTG” as the start codon, while used four types of stop codons. Almost all tRNA genes were folded into typical cloverleaf secondary structures. The L-strand replication origin (OL) and a non-coding region were also found. The new mitogenomic phylogenetic tree confirms the reciprocally monophyly of the genusTylototriton, EchinotritonandPleurodeleswith high bootstrap value. The present study will provide information for future studies on the conservation genetics and phylogeny of this species and its relatives. [ABSTRACT FROM AUTHOR]