{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,12,30]],"date-time":"2025-12-30T15:38:28Z","timestamp":1767109108461,"version":"build-2065373602"},"reference-count":50,"publisher":"MDPI AG","issue":"10","license":[{"start":{"date-parts":[[2022,10,17]],"date-time":"2022-10-17T00:00:00Z","timestamp":1665964800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Talent Project of Hunan Provincial Science and Technology Department","award":["2020RC3057","32060128","2020040371B","Jdy20086","DNGC2021"],"award-info":[{"award-number":["2020RC3057","32060128","2020040371B","Jdy20086","DNGC2021"]}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["2020RC3057","32060128","2020040371B","Jdy20086","DNGC2021"],"award-info":[{"award-number":["2020RC3057","32060128","2020040371B","Jdy20086","DNGC2021"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Zhilan Foundation","award":["2020RC3057","32060128","2020040371B","Jdy20086","DNGC2021"],"award-info":[{"award-number":["2020RC3057","32060128","2020040371B","Jdy20086","DNGC2021"]}]},{"name":"Jishou University","award":["2020RC3057","32060128","2020040371B","Jdy20086","DNGC2021"],"award-info":[{"award-number":["2020RC3057","32060128","2020040371B","Jdy20086","DNGC2021"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Genes"],"abstract":"<jats:p>Mitochondrial genomes (mitogenomes) are valuable resources in molecular and evolutionary studies, such as phylogeny and population genetics. The complete mitogenomes of two crocodile newts, Tylototriton broadoridgus and Tylototriton gaowangjienensis, were sequenced, assembled, and annotated for the first time using next-generation sequencing. The complete mitogenomes of T. broadoridgus and T. gaowangjienensis were 16,265 bp and 16,259 bp in lengths, which both composed of 13 protein-coding genes (PCGs), 2 rRNA genes, 22 tRNA genes, and 1 control region. The two mitogenomes had high A + T content with positive AT-skew and negative GC-skew patterns. The ratio of non-synonymous and synonymous substitutions showed that, relatively, the ATP8 gene evolved the fastest and COI evolved the slowest among the 13 PCGs. Phylogenetic trees from BI and ML analyses resulted in identical topologies, where the Tylototriton split into two groups corresponding to two subgenera. Both T. broadoridgus and T. gaowangjienensis sequenced here belonged to the subgenus Yaotriton, and these two species shared a tentative sister group relationship. The two mitogenomes reported in this study provided valuable data for future molecular and evolutionary studies of the genus Tylotoriton and other salamanders.<\/jats:p>","DOI":"10.3390\/genes13101878","type":"journal-article","created":{"date-parts":[[2022,10,17]],"date-time":"2022-10-17T03:43:58Z","timestamp":1665978238000},"page":"1878","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["Characterization, Comparison of Two New Mitogenomes of Crocodile Newts Tylototriton (Caudata: Salamandridae), and Phylogenetic Implications"],"prefix":"10.3390","volume":"13","author":[{"given":"Jin-Xiu","family":"Wang","sequence":"first","affiliation":[{"name":"Hunan Engineering Laboratory for Chinese Giant Salamander\u2019s Resource Protection and Comprehensive Utilization, Key Laboratory of Hunan Forest Products and Chemical Industry Engineering, Jishou University, Zhangjiajie 427000, China"},{"name":"College of Biology and Environmental Sciences, Jishou University, Jishou 416000, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xiang-Ying","family":"Lan","sequence":"additional","affiliation":[{"name":"Hunan Engineering Laboratory for Chinese Giant Salamander\u2019s Resource Protection and Comprehensive Utilization, Key Laboratory of Hunan Forest Products and Chemical Industry Engineering, Jishou University, Zhangjiajie 427000, China"},{"name":"College of Biology and Environmental Sciences, Jishou University, Jishou 416000, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6361-7679","authenticated-orcid":false,"given":"Qing-Hua","family":"Luo","sequence":"additional","affiliation":[{"name":"Hunan Engineering Laboratory for Chinese Giant Salamander\u2019s Resource Protection and Comprehensive Utilization, Key Laboratory of Hunan Forest Products and Chemical Industry Engineering, Jishou University, Zhangjiajie 427000, China"},{"name":"College of Biology and Environmental Sciences, Jishou University, Jishou 416000, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zhi-Rong","family":"Gu","sequence":"additional","affiliation":[{"name":"National Nature Reserve of Badagongshan, Zhangjiajie 427100, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Qiang","family":"Zhou","sequence":"additional","affiliation":[{"name":"Hunan Engineering Laboratory for Chinese Giant Salamander\u2019s Resource Protection and Comprehensive Utilization, Key Laboratory of Hunan Forest Products and Chemical Industry Engineering, Jishou University, Zhangjiajie 427000, China"},{"name":"College of Biology and Environmental Sciences, Jishou University, Jishou 416000, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ming-Yao","family":"Zhang","sequence":"additional","affiliation":[{"name":"Hunan Engineering Laboratory for Chinese Giant Salamander\u2019s Resource Protection and Comprehensive Utilization, Key Laboratory of Hunan Forest Products and Chemical Industry Engineering, Jishou University, Zhangjiajie 427000, China"},{"name":"College of Biology and Environmental Sciences, Jishou University, Jishou 416000, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"You-Xiang","family":"Zhang","sequence":"additional","affiliation":[{"name":"College of Biology and Environmental Sciences, Jishou University, Jishou 416000, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6498-944X","authenticated-orcid":false,"given":"Wan-Sheng","family":"Jiang","sequence":"additional","affiliation":[{"name":"Hunan Engineering Laboratory for Chinese Giant Salamander\u2019s Resource Protection and Comprehensive Utilization, Key Laboratory of Hunan Forest Products and Chemical Industry Engineering, Jishou University, Zhangjiajie 427000, China"},{"name":"College of Biology and Environmental Sciences, Jishou University, Jishou 416000, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2022,10,17]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"353","DOI":"10.1007\/BF01215182","article-title":"Patterns of nucleotide composition at fourfold degenerate sites of animal mitochondrial genomes","volume":"41","author":"Perna","year":"1995","journal-title":"J. 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