Comparative analyses of the mitochondrial genome of the sheep ked Melophagus ovinus (Diptera: Hippoboscidae) from different geographical origins in China

• Published in: Parasitology research (1987) Vol. 117; no. 8; pp. 2677 - 2683
• Main Authors: Tang, Jia-Min, Li, Fen, Cheng, Tian-Yin, Duan, De-Yong, Liu, Guo-Hua
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.08.2018; Springer; Springer Nature B.V
• Subjects: Amino acid sequence; Animals; Biomedical and Life Sciences; Biomedicine; China; Codons; Diptera - genetics; Distribution; Female; Genetic aspects; Genome, Mitochondrial - genetics; Genomes; Geographical distribution; Geography; Health aspects; Hippoboscidae; Immunology; Male; Medical Microbiology; Melophagus ovinus; Microbiology; Mitochondria; Molecular biology; Nucleotide sequence; Oestroidea; Oligodendrocyte-myelin glycoprotein; Phylogeny; Population genetics; Population studies; Sheep; Sheep - parasitology; Sheep Diseases - parasitology; Short Communication; China; Phylogenetic analyses; Sheep ked; Mitochondrial genome; Melophagus ovinus
• ISSN: 0932-0113; 1432-1955
• DOI: 10.1007/s00436-018-5925-4

The sheep ked Melophagus ovinus is mainly found in Europe, Northwestern Africa, and Asia. Although M. ovinus is an important ectoparasite of sheep in many countries, the population genetics, molecular biology, and systematics of this ectoparasite remain poorly understood. Herein, we determined the mitochondrial (mt) genome of M. ovinus from Gansu Province, China (MOG) and compared with that of M. ovinus Xinjiang Uygur Autonomous Region, China (MOX). The mt genome sequence (15,044 bp) of M. ovinus MOG was significantly shorter (529 bp) than M. ovinus MOX. Nucleotide sequence difference in the whole mt genome except for non-coding region was 0.37% between M. ovinus MOG and MOX. For the 13 protein-coding genes, comparison revealed sequence divergences at both the nucleotide (0–1.1%) and amino acid (0–0.59%) levels between M. ovinus MOG and MOX, respectively. Interestingly, the cox 1 gene of M. ovinus MOX is predicted to employ unusual mt start codons AAA, which has not been predicted previously for any parasite genome. Phylogenetic analyses showed that M. ovinus (Hippoboscoidea) is related to the superfamilies Oestroidea + Muscoidea. Our results have also indicated the paraphylies of the four families (Anthomyiidae, Calliphoridae, Muscidae, and Oestridae) and two superfamilies (Oestroidea and Muscoidea). This mt genome of M. ovinus provides useful molecular markers for studies into the population genetics, molecular biology, and systematics of this ectoparasite.