玉米T型细胞质雄性不育系与相应保持系线粒体蛋白质组中的差异蛋白

被引:21
作者
张维佳
李纯正
黄海泉
王振英
彭永康
机构
[1] 天津师范大学生物系
关键词
线粒体蛋白质组; 花粉败育; MALDI-TOF-MS; 玉米; T型细胞质雄性不育;
D O I
暂无
中图分类号
Q943 [植物细胞遗传学];
学科分类号
071007 [遗传学];
摘要
利用固相pH3-10梯度双向凝胶电泳,对玉米T型细胞质雄性不育系(T-CMS)及其相应保持系叶片(苗期、拔节期、孕穗期),胚轴,胚根和花药(花粉母细胞减数分裂期、花粉粒小孢子单一双核期)线粒体蛋白质组中的差异蛋白进行分析。PDQuest 2D图像软件分析表明,苗期和拔节期叶片约有150个蛋白质斑点,胚轴和胚根中可识别出150个线粒体蛋白质斑点,花药中约有100个斑点。利用MALDI-TOF-MS方法,运用MASCOT软件于NCBI进行数据查询,对T-CMS与相应保持系中存在的差异蛋白进行归属鉴定,在T-CMS中存在,保持系中缺失的线粒体蛋白质有:r40c1 protein(胚轴中),mature anther-specific protein,DNA-directed RNA polymerase 23kD subunit,hex- okinaseⅡ和T-CMS中缺失而在保持系中存在的有:glutathione S-transferase,putative protein。其中T-CMS与相应保持系间,线粒体蛋白质组呈现出差异的组织有胚轴、胚根和小孢子单-双核期的花药。叶片的不同发育时期线粒体蛋白质组呈现明显变化,但T-CMS与保持系间没有差异。在小孢子单-双核期(花粉败育期)的花药中,T-CMS与保持系间线粒体蛋白质组出现明显差异,线粒体蛋白质组出现变异的时期与花粉败育时期相一致。
引用
收藏
页码:410 / 418
页数:9
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