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REPOSITORIES: ENA
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Project description:NextGen project variation for Ovis aries
| PRJEB6025 | ENA
Project description:The sheep (Ovis aries) plays a major socio-economic role in the world. Copy number variations (CNVs) are increasingly recognized as a key and potent source of genetic variation and phenotypic diversity, but little is known about the extent to which CNVs contribute to genetic variation in Chinese sheep breeds. Analyses of CNVs in the genomes of eight sheep breeds were performed using the sheep SNP50 BeadChip genotyping array. A total of 111 CNV regions (CNVRs) were obtained from 160 Chinese sheep breeds. These CNVRs covered 13.75 Mb of the sheep genome sequence. A total of 22 Go terms and 17 candidate genes were obtained from the functional analysis. Ten CNVRs were selected for validation, of which 7 CNVRs were further experimentally confirmed by quantitative PCR. Four candidate genes were selected to confirm the results of the functional analysis. These results provide a resource for furthering understanding of ruminant biology, and for further improving the genetic quality of sheep breeds.
2017-10-01 | GSE71584 | GEO
Project description:Infection of sheep with Brucella ovis results in ovine brucellosis, a disease characterized by infertility in rams, abortion in ewes and increased perinatal mortality in lambs. During the course of the infection both the ovine immune response and host cell gene expression are modified. The objective of this research was to conduct a preliminary characterization of differential gene expression in rams experimentally infected with B. ovis by microarray hybridization and real-time RT-PCR. Six hybridizations were conducted using total RNA from three individual infected sheep at 15 and 60 days post infection. In each comparison, the control channels contained total RNA from each of the same three sheep at 0 days post infection. Ratios were calculated as B. ovis-infected sheep at 15 and 60 dpc versus uninfected animals at 0 dpc.
2008-07-02 | E-GEOD-11928 | biostudies-arrayexpress