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Polymorphism in Growth Hormone Gene and its Association with Growth Traits in Siniperca chuatsi

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Title: Polymorphism in Growth Hormone Gene and its Association with Growth Traits in Siniperca chuatsi
Authors: Haifang Wang
Jijia Sun
Pengfei Wang
Xue Lu
Peng Xu
show 2 moreYongming Gu
Guifeng Li

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Keywords: Siniperca chuatsi
Growth hormone
High-resolution melting
SNP
Growth traits
LC Subject Headings: Fish culture--Israel.
Fish culture.
Issue Date: 2016
Abstract: Growth hormone (GH) is a candidate gene for growth traits in fish. In this study, we assessed associations between single nucleotide polymorphisms (SNPs) in GH gene with growth traits in 357 Siniperca chuatsi individuals using high-resolution melting. Two SNPs were identified in GH gene, with one mutation in exon 5 (g.5045T>C), and one mutation in intron 5 (g.5234T>G). The corrections analysis of SNPs with the four growth traits was carried out using General Linear Model (GLM) estimation. Results showed that both of them were significantly associated with growth performance in S. chuatsi. For g.5234T>G, it was significantly associated with body weight (P<0.01), body length (P<0.05), body depth (P<0.01), and body width (P<0.01), and the individuals of genotype GG grew faster than those of genotypes TT and TG (P<0.05). A further diplotype-trait association analysis confirmed that in fish with H3H2 (TC-GG) diplotype body weight, body length, and body width was greater than in those with other diplotypes (P<0.05). These results demonstrated GH gene SNPs could be used as potential genetic markers in future marker assisted selection of S. chuatsi.
Pages/Duration: 8 pages
URI/DOI: http://hdl.handle.net/10524/54935
ISSN: 0792-156X
Appears in Collections:Volume 68, 2016



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