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Position: Home > Articles > Cloning and Sequence Analysis of an ω-3 Fatty Acid Desaturase Gene from High-oil and Low-oil Soybean Cultivars Soybean Science 2008,27 (4) 25-27

ω-3脂肪酸脱氢酶在高、低油大豆品种中的克隆与序列分析

作  者:
刘文浩;李伟;陈相艳;戴海英;张礼凤
单  位:
山东省农业科学院牛研究中心;山东省农业科学院作物研究所;山东省业科学院
关键词:
大豆;亚麻酸;ω-3脂肪酸脱氢酶;序列差异
摘  要:
α-亚麻酸(ALA)被称为必需脂肪酸,对人体有一系列的保健作用。ω-3脂肪酸脱氢酶(FAD)催化亚油酸(LA)生成ALA。大豆种子中ALA含量较高,为了比较高、低油大豆ω-3FAD的序列差异,用RT-PCR方法从大豆品种鲁豆11和郑9525的未成熟种子中扩增GmFAD3C的cDNA,获得的cDNA长度为1174bp,编码380个氨基酸。在推测的氨基酸序列中发现19处差异,为研究GmFAD3C基因在高、低油大豆种质中的差异表达奠定了基础。
译  名:
Cloning and Sequence Analysis of an ω-3 Fatty Acid Desaturase Gene from High-oil and Low-oil Soybean Cultivars
作  者:
LIU Wen-hao1,LI Wei2,CHEN Xiang-yan3,DAI Hai-ying2,Zhang Li-feng2 (1Dairy Cow Research Centre,Shandong Academy of Agriculture Science,Jinan 250100;2Crop Institute,Shandong Academy of Agriculture Science,Jinan 250100;3Shandong Academy of Agriculture Science,Jinan 250100,Shandong,China)
关键词:
Soybean;Linolenic acid;ω-3 fatty acid desaturase;Sequence difference
摘  要:
α-linolenic acid(ALA)is an essential fatty acid which has a lot of healthcare functions to human.In plants,ω-3 fatty acid desaturases(FAD)catalyze linoleic acid(LA)to form ALA.The seed oil of soybean contains high level of ALA.RT-PCR was used to amplify the cDNA of GmFAD3C from the cultivars of Ludou11 and Zheng 9525.The length of the acquired cDNA,containing 380 amino acids,was 1174bp.Nineteen different amino acids were detected in the amino acid sequences of GmFAD3C from Ludou11 and Zheng 9525.These differences will help us to research the differential expression of GmFAD3C between high-oil and low-oil soybean.

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