Project description:Twelve midlactation cows received 4 diets differing in forage-to-concentrate ration (High (HF) versus Low (LF) forage supplemented or not with lipids (HF with whole intact rapeseeds (HF-RS) and LF with sunflower oil (LF-SO)) 12 cows got into 4 groups, each cow was received 4 different diets in a latin square design Green*txt and Red_*txt raw data files contain Cy3 and Cy5 signal intensities, respectively.
Project description:Here we present a high-density in situ synthesized microarray for Ovis aries, named Aristaeus, designed by means of a pipeline of software instruments that, starting from non-annotated redundant EST sequences, selects oligonucleotides suitable for in situ generation on chip. The chip was tested by comparing the gene expression profiles of two sheep breeds with different phenotype, Sarda and Gentile di Puglia. We carried out microarray experiments on liver and udder tissues from lactating individuals and identified a relevant number of differentially expressed genes, all involved in metabolism pathways. The results are consistent with literature knowledge, while selected differential gene expressions have been confirmed by quantitative real-time polymerase chain reaction analyses. Tissue samples of liver were collected from 4 lactating individuals of two sheep (Ovis aries) breeds, Gentile di Puglia and Sarda. Biopsies of liver tissue were taken at second lactation stage (first record, stage 01: 6 days after lambing; second record, stage 02: 44 days after lambing) in both breeds. Tissues from liver were immersed in RNAlater (Sigma) immediately after biopsy and stored at -20°C. Samples were pooled by breed and then reverse labeled (cy5 and cy3), resulting in four raw data sets.
Project description:Milk and dairy products are an essential food and an economic resource in many countries. Milk component synthesis and secretion by the mammary gland involve expression of a large number of genes whose nutritional regulation remains poorly defined. We aim at understanding the genomic influence on milk quality and synthesis by comparing two sheep breeds, with different milking attitude, Sarda and Gentile di Puglia, using sheep-specific microarray technology. From sheep ESTs deposited at NCBI, we generated the first annotated microarray developed for sheep with a covering of most of the genome. Whole tissue samples of mammary gland were collected from 4 lactating individuals of two sheep (Ovis aries) breeds, Gentile di Puglia and Sarda. Biopsies of lactating mammary tissue were taken at two lactation stages (first record, stage 01: 6 days after lambing; second record, stage 02: 44 days after lambing) in both breeds. Tissues from mammary gland were immersed in RNAlater (Sigma) immediately after biopsy and stored at -20°C.
Project description:Animal nutrition considerably affects milk composition that influences its nutritional quality. Milk component synthesis and secretion by the mammary gland involve the expression of a large number of genes whose nutritional regulation remains poorly defined. In this study, 16 lactating goats received 4 experimental diets differing in either forage to concentrate ratio (high forage, HF, or low forage, LF) supplemented, or not, with lipids (whole rapeseeds, RS, or sunflower oil, SO) in a 4 x 4 Latin Square design. To investigate the pathways regulated by nutrition, we examined the effect of these diets on the expression of approximately 8400 genes in caprine mammary gland using a bovine oligonucleotide microarray.
Project description:The heart plays a crucial role in the adaptation of Tibetan sheep to hypoxia. In the present study, we utilized proteomic technologies to comprehensively analyze and identify the proteins, pathways, and Gene Ontology (GO) terms associated with hypoxic adaptation in Tibetan sheep at three different altitudes (2500m, 3500m, and 4500m).
2023-11-20 | PXD047077 |
Project description:Tibetan sheep muscle mRNA sequencing data
Project description:To reveal the protein expression patterns in Tibetan sheep lungs at different altitudes, proteome sequencing was performed in this study.