Feces sample of plateau pika and yak
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PROVIDER: PRJNA590585 | ENA |
REPOSITORIES: ENA
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Project description:This study explores how yaks, an ideal animal model for studying plateau adaptability, adapt to high-altitude environments. The lung is a representative organ of the yak’s adaptation to high-altitude environments. The F1 hybrids of yak and cattle, known as dzho, also exhibit adaptability to plateau conditions. This study constructed a single-cell transcriptome atlas of the lungs in yak, dzho and cattle, containing 51 subtypes. We initially found that the differential subtypes among yak, dzho and cattle were mainly concentrated in T&NK cells and fibroblasts. Most of them belonged to new cell subtypes. Subsequently, we speculated that NKG7 and CD4 played a central regulatory role in T&NK cells, contributing to T cell activation and affecting the adaptive immune response of yaks. In fibroblasts, MYL9 and IGF2 are believed to play key regulatory roles, participating in maintaining cellular energy metabolism balance. These results provide an important scientific basis for systematically analysing the molecular regulatory mechanisms of yak adaptation to high-altitude hypoxia.
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Project description:Purpose：Yak long-term colonization and widespread distribution across the plateau can be serve as an ideal natural animal model to provide insights into the adaptive evolution of other plateau species, including humans. Methods:To exploring the molecular mechanisms of lung tissue in yak to response to hypoxia, the mRNA, lncRNA and miRNA of lung tissue from cattle and three different altitude yaks were sequenced. Results:A total of 21764 mRNAs, 14168 lncRNAs and 1209miRNAs (305 known and 904 novel miRNAs)were identifed.Compared yak with cattle, 4975 mRNAs, 3326 lncRNAs and 75 miRNAs were differentially expressed. 756 mRNAs, 346 lncRNAs and 83 miRNAs were found to be differentially expressed amongthree different altitude yaks(fold change≥2 and P-value<0.05). Conclusions:The differentially expressed genes were functionally enriched in long-chain fatty acid metabolic process and protein processing between yak and cattle, while the immune response and cell cycle were enriched among three different altitude yaks. Furthermore, the competing endogenous RNAs (ceRNAs) networks were identified to illustrate their roles.
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Project description:Purpose：Yak long-term colonization and widespread distribution across the plateau can be serve as an ideal natural animal model to provide insights into the adaptive evolution of other plateau species, including humans. Methods:To exploring the molecular mechanisms of lung tissue in yak to response to hypoxia, the mRNA, lncRNA and miRNA of lung tissue from cattle and three different altitude yaks were sequenced. Results:A total of 21764 mRNAs, 14168 lncRNAs and 1209miRNAs (305 known and 904 novel miRNAs)were identifed.Compared yak with cattle, 4975 mRNAs, 3326 lncRNAs and 75 miRNAs were differentially expressed. 756 mRNAs, 346 lncRNAs and 83 miRNAs were found to be differentially expressed amongthree different altitude yaks(fold change≥2 and P-value<0.05). Conclusions:The differentially expressed genes were functionally enriched in long-chain fatty acid metabolic process and protein processing between yak and cattle, while the immune response and cell cycle were enriched among three different altitude yaks. Furthermore, the competing endogenous RNAs (ceRNAs) networks were identified to illustrate their roles.
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Project description:Cattle-yak is the hybrid offspring of yak and cattle. It has obvious heterosis in production performance, but the male sterility of cattle-yak has always been the focus of attention. Studies have shown that non-coding RNA is involved in the regulation of spermatogenesis. We comprehensively compared the testicular transcription profiles of cattle, yak and cattle-yak. More DEGs, DECs and DEMs were found in the intersection of the two comparison groups of cattle and cattle-yak, yak and cattle-yak, with 4,968, 360 and 59, respectively. The DEGs of cattle-yak, cattle and yak were mainly enriched in biological processes such as spermatogenesis, male gamete generation and sexual reproduction. At the same time, GO and KEGG analysis suggested that DECs host genes and DEMs source genes were also involved in the regulation of spermatogenesis. The construction of potential ceRNA networks found that some differentially expressed ncRNAs may be involved in the regulation of genes related to testicular spermatogenesis, including miR-423-5p, miR-449b, miR-34b/c, miR-15b, etc., as well as unreported miR-6123, miR-1306 and some miRNA and circRNA interaction pairs. This study provides a reference for further study on the mechanism of male sterility in cattle-yak.
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