Dataset Information

Complete mitochondrial genome of Siberian musk deer Moschus moschiferus (Artiodactyla: Moschidae) and phylogenetic relationship with other moschus species.

ABSTRACT: The Siberian musk deer, Moschus moschiferus, is an Endangered species in South Korea due to its decreasing population size caused by illegal hunting and habitat destruction. In this study, the complete mitochondrial genome of M. moschiferus was determined using next-generation sequencing. Total length of its mitogenome is 16,356?bp in length, encoding 13 protein-coding genes, 22 transfer RNA genes, two ribosomal RNA genes, and one control region. Its AT contents are 62.4%, which are higher than its GC contents (37.7%) (A, 34.1%; C, 24.9%; G, 12.8%; and T, 28.3%). Phylogenetic relationship of genus Moschus showed topologies similar to those reported in previous studies. Sequence comparison between two M. moschiferus from South Korea indicated high sequence variations with 122 nucleotide differences. These results provide useful information necessary for further phylogenetic studies of Moschus species.

SUBMITTER: Kim SI

PROVIDER: S-EPMC7800829 | biostudies-literature | 2017 Nov

REPOSITORIES: biostudies-literature

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Complete mitochondrial genome of Siberian musk deer Moschus moschiferus (Artiodactyla: Moschidae) and phylogenetic relationship with other moschus species.

Kim Sang-In SI Lee Mu-Yeong MY Jeon Hey Sook HS Han Sang-Hoon SH An Junghwa J

Mitochondrial DNA. Part B, Resources 20171125 2

The Siberian musk deer, Moschus moschiferus, is an Endangered species in South Korea due to its decreasing population size caused by illegal hunting and habitat destruction. In this study, the complete mitochondrial genome of M. moschiferus was determined using next-generation sequencing. Total length of its mitogenome is 16,356 bp in length, encoding 13 protein-coding genes, 22 transfer RNA genes, two ribosomal RNA genes, and one control region. Its AT contents are 62.4%, which ar ...[more]

PMID: 33474012

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Project description:BACKGROUND: The musk glands of adult male Chinese forest musk deer (Moschus berezovskii Flerov, 1929) (FMD), which are considered as special skin glands, secrete a mixture of sebum, lipids, and proteins into the musk pod. Together, these components form musk, which plays an important role in attracting females during the breeding season. However, the relationship between the musk glands and skin of Chinese FMD remains undiscovered. Here, the musk gland and skin of Chinese FMD were examined using histological analysis and RNA sequencing (RNA-seq), and the expression of key regulatory genes was evaluated to determine whether the musk gland is derived from the skin. METHODS: A comparative analysis of musk gland anatomy between juvenile and adult Chinese FMD was conducted. Then, based on the anatomical structure of the musk gland, skin tissues from the abdomen and back as well as musk gland tissues were obtained from three juvenile FMD. These tissues were used for RNA-seq, hematoxylin-eosin (HE) staining, immunohistochemistry (IHC), western blot (WB), and quantitative real-time polymerase chain reaction (qRT-PCR) experiments. RESULTS: Anatomical analysis showed that only adult male FMD had a complete glandular organ and musk pod, while juvenile FMD did not have any well-developed musk pods. Transcriptomic data revealed that 88.24% of genes were co-expressed in the skin and musk gland tissues. Kyoto Encyclopedia of Genes and Genomes (KEGG) signaling pathway analysis found that the genes co-expressed in the abdomen skin, back skin, and musk gland were enriched in biological development, endocrine system, lipid metabolism, and other pathways. Gene Ontology (GO) enrichment analysis indicated that the genes expressed in these tissues were enriched in biological processes such as multicellular development and cell division. Moreover, the Metascape predictive analysis tool demonstrated that genes expressed in musk glands were skin tissue-specific. qRT-PCR and WB revealed that sex-determining region Y-box protein 9 (Sox9),Caveolin-1 (Cav-1), andandrogen receptor (AR) were expressed in all three tissues, although the expression levels differed among the tissues. According to the IHC results, Sox9 and AR were expressed in the nuclei of sebaceous gland, hair follicle, and musk gland cells, whereas Cav-1 was expressed in the cell membrane. CONCLUSIONS: The musk gland of Chinese FMD may be a derivative of skin tissue, and Sox9, Cav-1, and AR may play significant roles in musk gland development.

Dataset Information

Complete mitochondrial genome of Siberian musk deer Moschus moschiferus (Artiodactyla: Moschidae) and phylogenetic relationship with other moschus species.

Publications

Complete mitochondrial genome of Siberian musk deer <i>Moschus moschiferus</i> (Artiodactyla: Moschidae) and phylogenetic relationship with other <i>moschus</i> species.

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