4.7 Article

Integrated multi-omics analysis reveals insights into Chinese forest musk deer (Moschus berezovskii) genome evolution and musk synthesis

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Publisher

FRONTIERS MEDIA SA
DOI: 10.3389/fcell.2023.1156138

Keywords

Moschus berezovskii; musk gland; integrated analysis; single cell sequencing; cell composition

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This study analyzed the musk gland tissues of Chinese forest musk deer and identified three expanded gene families related to musk synthesis. Transcriptional analysis and single-cell sequencing revealed a prostate-like mRNA expression pattern and seven distinguishable cell types in the musk gland. The findings provide insights into musk gland formation and the process of musk synthesis.
Among the artiodactyls, male animals belonging to the Family Moschidae have a unique tissue, the musk gland, with the capability of musk synthesis. However, the genetic basis of musk gland formation and musk production are still poorly understood. Here, musk gland tissues from two juvenile and three adult Chinese forest musk deer (Moschus berezovskii) were utilized to analyze genomic evolution events, evaluate mRNA profiles and investigate cell compositions. By performing genome reannotation and comparison with 11 ruminant genomes, three expanded gene families were identified in the Moschus berezovskii genome. Transcriptional analysis further indicated that the musk gland displayed a prostate-like mRNA expression pattern. Single-cell sequencing revealed that the musk gland is composed of seven distinguishable cell types. Among them, sebaceous gland cells and luminal epithelial cells play important roles in musk synthesis, while endothelial cells master the regulation of cell-to-cell communication. In conclusion, our study provides insights into musk gland formation and the musk-synthesizing process.

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