Abstract
ABSTRACT 1. Angiopoietin-like protein 4 (ANGPTL4) plays a key role in promoting fat metabolism and reducing blood lipid. This study characterised the ANGPTL4 gene in Muscovy ducks (Cairina moschata) and investigated its potential functions in fat metabolism in Muscovy ducks. 2. The Muscovy duck ANGPTL4 cDNA was successfully cloned for the first time, showing a length of 2591 bp. After phylogenetic analysis by RT-qPCR analysis, it was found that the ANGPTL4 gene of Anas platyrhynchos shared the highest sequence similarity with that of Muscovy ducks. 3. The ANGPTL4 gene was commonly expressed in 23 different tissues with the highest expression in the abdominal fat in Muscovy ducks. A significant association was observed between abdominal fat percentage (AFP) and the mRNA expression of the ANGPTL4 gene. Moreover, Muscovy ducks showed a peak of ANGPTL4 expression in the liver and abdominal fat at 1–2 weeks old. 4. These findings suggest that the ANGPTL4 gene is related to fat deposition and regulation in Muscovy ducks.
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