基于ITS序列云南老虎须(Tacca chantrieri)居群遗传多样性的探讨Discussion on Genetic Diversity of Tacca chantrieri Population in Yunnan Province Based on ITS Sequence Analysis
赵月梅;张玲;
摘要(Abstract):
[目的]研究9个云南老虎须居群的亲缘关系,为该种质资源的合理利用和保护提供理论依据。[方法]利用ITS序列分析技术,对采自云南省的9个老虎须居群共118个样品进行遗传多样性研究。[结果]9个老虎须居群的样品的ITS序列被分成了2个大组,滇南4个居群聚为一组,滇东南的5个居群聚为另一组。9个居群共6个单倍型,两组之间无重合单倍型。[结论]老虎须的遗传多样性很低,遗传变异主要存在于居群之间。这可能是因为云南分布的老虎须是以自交为主的植物,因此对老虎须进行迁地保护时应该是尽量引种多个居群。
关键词(KeyWords): 老虎须;ITS序列;遗传多样性
基金项目(Foundation): 中国科学院知识创新工程重要方向项目(KSCX2-YW-Z-0904);; 科技部大科学装置工程项目(2009-LSF-GBOWS-01)
作者(Author): 赵月梅;张玲;
Email:
DOI: 10.13989/j.cnki.0517-6611.2011.34.218
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