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Construction and Comparative Analysis of Yeast Two-hybrid cDNA Libraries of Two Rice Cultivars (Strains)
Author(s): LU Lian-ming, QIN Mei-ling, NIU Xiao-qing, LAN Han-hong, WANG Ping, XIE Li-yan, WU Zu-jian, XIE Lian-hui
Pages: 656-
662
Year: 2008
Issue:
5
Journal: ACTA LASER BIOLOGY SINICA
Keyword: 水稻; SMART技术; 酵母双杂交; cDNA文库;
Abstract: "武育粳3号"和"KT95-418"为两个遗传背景基本一致而对水稻条纹叶枯病表现为明显抗性差异的粳稻(Oryza sativa L.ssp. japonica)品种(系).利用SMART技术合成双链cDNA后,通过SfiⅠ酶切位点将cDNA片段定向插入到改造的载体NpGADT7中,构建了两品种(系)水稻的酵母双杂交cDNA文库.检测结果表明:所构建的两个文库库容量均大于1.0×106 cfu;初始文库滴度分别为1.0×1010 cfu/mL和5.0×1010 cfu/mL,扩增文库滴度均为1.0×1011 cfu/mL;两文库重组率均大于95 %;"武育粳3号"文库cDNA插入片段长度集中分布在700 bp~800 bp之间,"KT95-418"集中分布在750 bp~1 000 bp之间;小规模测序结果表明两文库中全长基因的比例均超过60 %.两品种(系)水稻酵母双杂交cDNA文库的构建为筛选分离抗病相关的变异基因及开展寄主与水稻条纹病毒(Rice stripe virus, RSV)互作的研究奠定了基础.
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