豆科胡枝子属ITS致同进化不完全研究

来源 :中国植物学会八十周年年会 | 被引量 : 0次 | 上传用户：cykic

【摘要】

：

东亚-北美间断分布的豆科胡枝子属包含40种,分为胡枝子亚属和大胡枝子亚属.作者在对胡枝子属的前期研究中发现:胡枝子属ITS序列在基因组内存在多个不同拷贝,证明其致同进化过程不完全;最有趣的是,胡枝子亚属内同一个种的克隆序列往往在系统树上形成单系的支,但大胡枝子亚属内同一个种的克隆序列则与其他种的克隆序列混杂在一起,说明ITS致同进化在两个亚属中进化式样截然不同.

【作者】

：

徐波高信芬张丽兵

【机构】

：

中国科学院成都生物研究所成都 610041 密苏里植物园美国圣路易斯 63166

【出处】

：

中国植物学会八十周年年会

【发表日期】

：

2013年4期

【关键词】

：

致同进化 nrDNA ITS 胡枝子属杂交渐渗低拷贝核基因

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豆科胡枝子属ITS致同进化不完全研究

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