Project description:Affymetrix GeneChip miRNA Array was used to globally identify different expression miRNAs in hypothalamus, liver, breast muscle and abdominal fat between commercial broilers and indigenous chickens at seven-week old with hypertrophic pectoral muscle or normal pectoral muscle.
Project description:The growth and development of duck skeletal muscle is an important economic trait that is genetically regulated. The internal mechanism underlying the regulation of skeletal muscle growth and development in ducks remains unclear. The purpose of this study was to identify candidate genes related to growth of duck skeletal muscle. RNA-sequencing technology was used to com-pare the transcriptome of duck breast muscles in an F2 population with the high breast muscle rate (HB) and the low breast muscle rate (LB). A total of 14,522 genes were confirmed to be ex-pressed in the breast muscle, and 173 differentially expressed genes (DEGs) were identified be-tween the HB and LB groups. Functional analysis showed that these DEGs were mainly involved in biological processes and pathways of fat metabolism and muscle growth, especially the FABP3 and MYL4 involved in the PPAR signaling pathway and cardiac muscle contraction pathway. These findings deepened our understanding of the molecular mechanisms involved in muscle growth in ducks, and provided a theoretical basis for improving duck production and breeding of ducks.
Project description:Tissue samples were harvested with the Keyes biopsy punch (8 mm; manufactured by HNM) from the caudal edge of the right superficial pectoral muscle perpendicular to myofibers and to the keel bone. Total RNA was isolated from p. major samples using mirVana™ miRNA Isolation Kit. Quality checks were performed by measuring the concentration and “RNA Integrity Number” of individual RNA samples using NanoDrop 1000 and Agilent Bioanalyzer 2100. The RNA samples were normalized and sent to NanoString Inc. (Seattle, WA, USA) for the quantification of gene expression levels using NanoString nCounter® technology. For this, 192 target genes, along with 12 housekeeping genes were selected based on multiple RNA-seq experiments conducted in our laboratories.
2021-01-11 | GSE162634 | GEO
Project description:Transcriptome sequencing for candidate genes in Muscovy ducks
| PRJNA704544 | ENA
Project description:Cecal content 16S rRNA sequencing of Muscovy ducks
Project description:The liver responsible for 90% lipid synthesis in poultry thus plays important role in the growth of Muscovy duck, which obtains high-fat deposition ability in a time-dependent manner. Therefore, male Muscovy ducks at the age of 14, 28, 42, and 56 days were selected for body weight (BW), carcass weight (CW), subcutaneous fat thickness (SFT), abdominal fat weight (AFW), intramuscular fat content (IMF), breast muscle fiber (BMF) diameter and density determination. Two-dimensional electrophoresis (2-DE) combined with liquid chromatography linked to tandem mass spectrometry (LC-MS/MS) was used to analyze the differentially expressed proteins in the liver at each stage.