Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR25265200_1.fastq.gz | Fastqsanger.gz | |||
| SRR25265200_2.fastq.gz | Fastqsanger.gz | |||
| SRR25265300_1.fastq.gz | Fastqsanger.gz | |||
| SRR25265300_2.fastq.gz | Fastqsanger.gz | |||
| SRR25265201_1.fastq.gz | Fastqsanger.gz |
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Project description:Deep sequencing of mRNA from 6 organs of yak (Bos grunniens) Analysis of ploy(A)+ RNA of brain,heart,liver,lung,spleen, and stomach of yak (Bos grunniens)
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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.
2024-02-06 | GSE254886 | GEO
Project description:On going efforts are directed at understanding the mutualism between the gut microbiota and the host in breast-fed versus formula-fed infants. Due to the lack of tissue biopsies, no investigators have performed a global transcriptional (gene expression) analysis of the developing human intestine in healthy infants. As a result, the crosstalk between the microbiome and the host transcriptome in the developing mucosal-commensal environment has not been determined. In this study, we examined the host intestinal mRNA gene expression and microbial DNA profiles in full term 3 month-old infants exclusively formula fed (FF) (n=6) or breast fed (BF) (n=6) from birth to 3 months. Host mRNA microarray measurements were performed using isolated intact sloughed epithelial cells in stool samples collected at 3 months. Microbial composition from the same stool samples was assessed by metagenomic pyrosequencing. Both the host mRNA expression and bacterial microbiome phylogenetic profiles provided strong feature sets that clearly classified the two groups of babies (FF and BF). To determine the relationship between host epithelial cell gene expression and the bacterial colony profiles, the host transcriptome and functionally profiled microbiome data were analyzed in a multivariate manner. From a functional perspective, analysis of the gut microbiota's metagenome revealed that characteristics associated with virulence differed between the FF and BF babies. Using canonical correlation analysis, evidence of multivariate structure relating eleven host immunity / mucosal defense-related genes and microbiome virulence characteristics was observed. These results, for the first time, provide insight into the integrated responses of the host and microbiome to dietary substrates in the early neonatal period. Our data suggest that systems biology and computational modeling approaches that integrate “-omic” information from the host and the microbiome can identify important mechanistic pathways of intestinal development affecting the gut microbiome in the first few months of life. KEYWORDS: infant, breast-feeding, infant formula, exfoliated cells, transcriptome, metagenome, multivariate analysis, canonical correlation analysis 12 samples, 2 groups
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Project description:The Jeryak is the hybrid offspring of yaks and Jersey cattle and exhibit improved milk and meat yields. Biomolecules carried within milk exosomes are important for cell growth, development, immune regulation, and various pathophysiological processes. Previous studies showed that miRNAs regulate mammary gland development, lactation, and milk quality. This study explored the relationship between milk exosomes miRNAs and lactation performance. A comparison of the milk content showed that yak milk was of a better quality compared to Jeryak milk (casein, fat, TS, SNF, lactose). Milk collected in December was superior to that collected in June for both yak and Jeryak, except for lactose concentrations. Exosomes were extracted by density gradient centrifugation and miRNA expression profiles in milk exosomes from three yaks and three Jeryaks collected in June and December were detected by small RNA sequencing. In all, 22, 120, 78, and 62 differentially expressed miRNAs (DEMs) were identified in Jun_ JY vs. Jun_ Y (P1: Jeryak in June vs. Yak in June), Jun_ JY vs. Dec_ JY (P2: Jeryak in June vs. Jeryak in December), Dec_ JY vs. Dec_ Y (P3: Jeryak in December vs. Yak in December), and Jun_ Y vs. Dec_ Y (P4: Yak in June vs. Yak in December) groups. These DEMs were enriched in functions and signaling pathways related to lactation performance. In conclusion, these findings are a reference tool to study the molecular basis of lactation performance.
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