The complete mitochondrial genome of a marine triclad Miroplana shenzhensis (Platyhelminthes, Tricladida, Maricola)

Jia-Jie Huang; Yuan-Yuan Liao; Wei-Xuan Li; Jun-Yu Li; An-Tai Wang; Yu Zhang

doi:10.1080/23802359.2022.2079102

The complete mitochondrial genome of a marine triclad Miroplana shenzhensis (Platyhelminthes, Tricladida, Maricola)

Mitochondrial DNA B Resour. 2022 Jun 2;7(6):927-929. doi: 10.1080/23802359.2022.2079102. eCollection 2022.

Authors

Jia-Jie Huang¹, Yuan-Yuan Liao¹, Wei-Xuan Li², Jun-Yu Li¹, An-Tai Wang¹, Yu Zhang^{1

3}

Affiliations

¹ Shenzhen Key Laboratory of Marine Bioresource and Eco-environmental Science, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, Guangdong, P. R. China.
² State Key Laboratory of Protein and Plant Gene Research, Center for Bioinformatics, School of Life Sciences, Peking University, Beijing, P. R. China.
³ Guangdong Engineering Research Center for Marine Algal Biotechnology, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, Guangdong, P. R. China.

Abstract

The complete mitochondrial genome (mitogenome) of Miroplana shenzhensis Yu & Wang, 2013 is reported in the present study, representing the second mitogenome recorded in the suborder Maricola. The circular mitogenome is 14,344 bp in length, containing 12 protein-coding genes, 2 ribosomal RNAs and 22 transfer RNAs. Comparative analysis on mitochondrial gene order reveals a rearrangement in the suborder Maricola, indicating that mitochondrial gene order is conserved only in Continenticola, and is divergent across Tricladida. Phylogenetic analysis shows M. shenzhensis is clustered with an another marine triclad, forming a well-supported monophyletic group of Maricloan.

Keywords: Mitogenome; gene order; molecular phylogeny.

Grants and funding

This study was supported by Special Funds for the Cultivation of Guangdong College Students’ Scientific and Technological Innovation (“Climbing Program” Special Funds; [grant no. pdjh2021b0429, pdjh2021b0430]; a China Undergraduate Training Program for Innovation and Entrepreneurship [grant no. S202010590038], as well as grants from Scientific and Technical Innovation Council of Shenzhen and Guangdong Natural Science Foundation [JCYJ20210324093412035 and 2020A1515011117].