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Polymorphisms in the bovine ghrelin precursor ( GHRL ) and Syndecan-1 ( SDC1 ) genes that are associated with growth traits in cattle

Polymorphisms in the bovine ghrelin precursor ( GHRL ) and Syndecan-1 ( SDC1 ) genes that are associated with growth traits in cattle,10.1007/s11033-0

Polymorphisms in the bovine ghrelin precursor ( GHRL ) and Syndecan-1 ( SDC1 ) genes that are associated with growth traits in cattle   (Citations: 5)
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Transgenically expressed Syndecan-1 was found in the hypothalamic nuclei that control energy balance, and was associated with maturity-onset obesity, while ghrelin has been shown to play important roles in the control of food intake, gastric acid secretion, energy homeostasis, and glucose and lipid metabolism. However, the roles of genetic variations of Syndecan-1 and ghrelin on growth trait have few been reported in cattle. Herein, five Chinese cattle breeds were analyzed by PCR–SSCP and DNA sequencing methods. The bovine ghrelin gene showed eleven SNPs g.[267G>A, 271G>A, 290C>T, 326A>G, 327T>C, 420C>A, 569A>G, 945C>T, 993C>T, 4491A>G, 4644G>A] and three SNPs g.[420C>A, 569 A>G, 945C>T] were firstly detected in cattle. The bovine Syndecan-1 gene showed two SNPs. One SNP showed a transition C>G at position 21514, resulting in a synonymous mutation p.G(GGC)169G(GGG) and another showed a transversion C>T at position 22591, resulting in a synonymous mutation p.D(GAC)283D(GAT). In ghrelin gene, no significant associations were revealed between any variant sites and body weight, average daily gain, body sizes for different growth periods (6, 12, 18, and 24 months old), as well as for the milk yield at 305 days, milk protein rate and milk fat percentage. However, the polymorphism of Syndecan-1 gene was significantly associated with bovine birth weight and body length. Hence, we first suggested that Syndecan-1 gene could be regarded as molecular marker for superior birth weight and body length.
Journal: Molecular Biology Reports - MOL BIOL REP , vol. 38, no. 5, pp. 3153-3160, 2011
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