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Cloning and Sequence Analysis of Full Length cDNAs of Growth Hormone/Insulin-Like Growth Factor-Ⅰ Axis Relative Genes of Japanese Seabass (Lateolabrax japonicus) and Siberian Sturgeon (Acipenser baerii Brandt)

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  • 1. The National Aquatic Feed Safety Assessment Center, Feed Institute Research, Chinese Academy of Agricultural Sciences, Beijing 100081, China;
    2. Animal Nutrition and Feed Center, Food Nutrition and Health Research Institute Co., Ltd., Beijing 102209, China;
    3. Key Laboratory of Feed Biotechnology, The Ministry of Agriculture, Beijing 100081, China

Received date: 2014-10-29

  Online published: 2015-04-21

Abstract

The reverse transcription-phosphatase chain reaction (RT-PCR) and rapid amplification of cDNA ends (RACE) methods were used in this experiment to clone the full-length sequences of cDNAs for growth hormone (GH) and GH receptor (GHR) of Japanese seabass (Lateolabrax japonicus) and Siberian sturgeon (Acipenser baerii Brandt). The results showed as follows: the full-length GH cDNA of Japanese seabass (GenBank accession No. JQ995145) was 949 bp, consisting of an open reading frame (ORF) of 615 bp encoding a protein of 204 amino acids with a theoretical molecular weight of 23.06 ku, and shared 36.0% to 90.2% similarity with other species. The full-length GHRⅠ cDNA of Japanese seabass (GenBank accession No. JX402001) was 3 070 bp, consisting of an ORF of 1 911 bp encoding a protein of 637 amino acids with a theoretical molecular weight of 70.79 ku, and shared 32.2% to 86.2% similarity with other species. The full-length GHRⅡ cDNA of Japanese seabass (GenBank accession No. JQ995146) was 2 926 bp, consisting of an ORF of 1 749 bp encoding a protein of 582 amino acids with a theoretical molecular weight of 64.42 ku, and shared 30.8% to 81.4% similarity with other species. The full-length GH cDNA of Siberian sturgeon (GenBank accession No. JX003684) was 999 bp, consisting of an ORF of 645 bp encoding a protein of 214 amino acids with a theoretical molecular weight of 24.14 ku, and shared 38.3% to 70.1% similarity with other species. The full-length GHR cDNA of Siberian sturgeon (GenBank accession No. JX003685) was 2 238 bp, consisting of an ORF of 1 716 bp encoding a protein of 571 amino acids with a theoretical molecular weight of 63.41 ku, and shared 39.5% to 49.2% with other species. The full-length sequences of cDNAs for GH and GHR of Japanese seabass and Siberian sturgeon will provide a scientific basis for further study on the regulatory mechanism of GH/IGF-Ⅰ axis on growth and development of fish.

Cite this article

ZHANG Zhiyong, XUE Min, WANG Jia, WU Xiufeng, ZHENG Yinhua, HAN Fang . Cloning and Sequence Analysis of Full Length cDNAs of Growth Hormone/Insulin-Like Growth Factor-Ⅰ Axis Relative Genes of Japanese Seabass (Lateolabrax japonicus) and Siberian Sturgeon (Acipenser baerii Brandt)[J]. Chinese Journal of Animal Nutrition, 2015 , 27(4) : 1278 -1292 . DOI: 10.3969/j.issn.1006-267x.2015.04.035

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