Ontology highlight
ABSTRACT:
PROVIDER: PRJNA904553 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR22413900_1.fastq.gz | Fastqsanger.gz | |||
| SRR22413900_2.fastq.gz | Fastqsanger.gz | |||
| SRR22413901_1.fastq.gz | Fastqsanger.gz | |||
| SRR22413901_2.fastq.gz | Fastqsanger.gz | |||
| SRR22413902_1.fastq.gz | Fastqsanger.gz |
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Project description:Chicken anaemia virus (CAV) causes severe anaemia and immunosuppression in young chickens. Such effects reduce the efficiency of routine vaccinations while aggravating the effects of other pathogens in chicken populations. So far, the host responses to CAV have not been studied in vivo on a whole genome-wide scale. In this study, we compared gene expression profiles of chicken tissues (thymus, bone marrow, bursa of Fabricius and spleen-in vivo) from SPF chickens at 14-day-old following intramuscular inoculation at day-old. A chicken specific-immune microarray (5k) developed at Roslin Institute was used throughout the study. Statistically significant gene expression changes occurred mainly in the thymus (in vivo).
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Project description:To realize the gene expression in response to acute heat stress in chicken testis, we have employed whole genome microarray expression profiling as we have employed whole genome microarray expression profiling as a tool to identify genes response to acute heat stress. Male B strain Taiwan country chickens were subjected to acute heat stress (38℃) for 4 h, and then exposed to 25℃, with testes collected 0, 2, and 6 h after the cessation of heat stress, using non heat-stressed roosters as a control group (n = 3 roosters per group). Based on a chicken 44K oligo microarray, 163 genes significantly differed in the testes of the heat-stressed chickens from those of the control chickens. The mRNA expressions of upregulated genes, including HSP25, HSP90AA1, HSPA2, and LPAR2, and downregulated genes, including CDH5, CTNNA3, EHF, CIRBP, SLA, and NTF3, were confirmed through quantitative real-time polymerase chain reaction (qRT-PCR).
2015-01-27 | GSE65279 | GEO
Project description:To realize the gene expression in response to acute heat stress in chicken testis, we have employed whole genome microarray expression profiling as we have employed whole genome microarray expression profiling as a tool to identify genes response to acute heat stress. Male B strain Taiwan country chickens were subjected to acute heat stress (38M-bM-^DM-^C) for 4 h, and then exposed to 25M-bM-^DM-^C, with testes collected 0, 2, and 6 h after the cessation of heat stress, using non heat-stressed roosters as a control group (n = 3 roosters per group). Based on a chicken 44K oligo microarray, 163 genes significantly differed in the testes of the heat-stressed chickens from those of the control chickens. The mRNA expressions of upregulated genes, including HSP25, HSP90AA1, HSPA2, and LPAR2, and downregulated genes, including CDH5, CTNNA3, EHF, CIRBP, SLA, and NTF3, were confirmed through quantitative real-time polymerase chain reaction (qRT-PCR). Acute heat stress induced testicular gene experssion in B strain Taiwan country chicken was measured at 0, 2, and 6 h of recovery after 4 h of 38 degree acute heat stress.
2015-01-27 | E-GEOD-65279 | biostudies-arrayexpress
Project description:The differences in reproductive processes at the molecular level between viviparous and oviparous animals are evident, and the site in the ovary that synthesizes sex hormones (androgens and oestrogens) and the trends for enriching sex hormones during follicle development in chickens are different from those in mammals, suggesting that the effect of sex hormones on follicle development in chickens is probably different from that in viviparous animals. To explore the specific role of androgen receptors (ARs) on chicken follicular development, we matched the correspondence of follicular development stages among chickens, humans, cows and identified chicken-specific genes related to follicle development (GAL-SPGs) by comparing follicle development-related genes and their biological functions among species (chickens, humans, and cows). A comparison of the core transcription factor regulatory network of granulosa cells (or ovaries) based on super enhancers among species (chicken, human, and mouse) revealed that AR is a core transcriptional regulator specific to chickens. In vivo experiments showed that inhibition of AR significantly reduced the number of syf (selected stage follicles) in chickens and decreased the expression of GAL-SPGs in F5 follicles, while in vitro experiments showed that inhibition of AR expression in chicken granulosa cells (GCs) significantly down-regulated the expression levels of GAL-SPGs, indicating that AR could regulate follicle selection through chicken-specific genes related to follicle development. A comparison among species (77 vertebrates) of the conserved genomic regions, where chicken super-enhancers are located, revealed that the chicken AR super-enhancer region is conserved in birds, suggesting that the role of AR in follicle selection may be widespread in birds. In summary, we found that AR can regulate follicle selection through chicken-specific genes related to follicle development, which also emphasizes the important role of AR in follicle selection in chickens and provides a new perspective for understanding the unique process of follicle development in chickens.
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Project description:Chicken anaemia virus (CAV) causes severe anaemia and immunosuppression in young chickens. Such effects reduce the efficiency of routine vaccinations while aggravating the effects of other pathogens in chicken populations. So far, the host responses to CAV have not been studied in vivo or in vitro on a whole genome-wide scale. In this study, we compared gene expression profiles of uninfected and CAV infected cell cultures (MDCC-MSB1 cells-in vitro) at 24, 48 and 72 hr post infection. A chicken specific-immune microarray (5k) developed at Roslin Institute was used throughout the study. Statistically significant gene expression changes occurred mainly after 72 hr (in vitro).
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Project description:Purpose: The goals of this study are to investigate the differentially expressed genes between High IMF chickens (WC) and Low IMF chickens (WRR) breast muscles by Illumina deep sequencing, to reveal the mechanism underlying chicken IMF deposition. Methods: Both WC chickens and WRR chickens were raised up to 120 d of age (D120) or 180 d of age (D180), two female birds of similar weight from each breed per age were subjected to RNA-sequencing by Illumina Hiseq 2000. So eight muscle samples in total were subjected to RNA-seq analysis, four WC chicken samples including WC.D120.B-1, WC.D120.B-3, WC.D180.B-2 and WC.D180.B-3, and four WRR chicken samples including WRR.D120.B-4, WRR.D120.B-6, WRR.D180.B-2 and WRR.D180.B-5. Results: The clean reads of each sample were over 20 million, the expressed genes ranged from 16202 to 17838, and a little higher in WRR samples than in WC samples. Differentially expresse analysis showed that there were 525, 161, 23, 87 DEGs detected in the comparisons of WRR.D120.B-VS-WC.D120.B, WRR.D180.B-VS-WC.D180.B, WC.D120.B-VS-WC.D180.B and WRR.D120.B-VS-WRR.D180.B, respectively. Many genes related to lipid catabolism were down-regulated in WC chickens. Conclusions: Our present study suggest that lower lipid catabolism exists in WC chickens but not in WRR chickens, and lower expression of SLC27A1 is through down-regulating fatty acid oxidation mediated by CPT1A to facilitate IMF deposition. Moreover, these findings indicate that reduced lipid catabolism, rather than increased lipid anabolism, contributes to chicken IMF deposition.
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