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ANALYSIS OF LEGINSULIN GENE IN SOYBEAN CULTIVAR (GLYCINE MAX) AND WILD SPECIES (GLYCINE SOJA)

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Author:
No author available
Journal Title:
CHINESE JOURNAL OF APPLIED & ENVIRONMENTAL BIOLOGY
Issue:
3
DOI:
10.3321/j.issn:1006-687X.1999.03.005
Key Word:
栽培大豆;野生大豆;豆类胰岛素;基因分析

Abstract: 以栽培大豆和野生大豆的基因组DNA为材料,利用PCR技术扩增并克隆了豆类胰岛素基因,分析了两者的DNA序列.结果表明,测定的DNA序列分别为841 bp和903 bp,有4个核苷酸差异;在信号肽编码区域内各存在一个内含子,大小分别为368和370个核苷酸;在ORF范围内,与前人报导的cDNA序列分别有1个和2个位点的核苷酸差异,从而导致相应位点的氨基酸发生变化.Southern杂交表明,栽培大豆和野生大豆的豆类胰岛素基因分别以单拷贝和多拷贝形式存在于基因组中.

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