浙江农业学报

• 园艺科学 • 上一篇    下一篇

部分茶竿竹亚属竹种亲缘关系的ITS序列分析

  

  1. (1. 国家林业局竹子研究开发中心,浙江 杭州 310012;2. 浙江省竹子高效加工重点实验室,浙江 杭州 310012)
  • 出版日期:2016-02-25 发布日期:2016-03-10

Analysis on genetic relationship of some Chagan\|bamboo species by using ITS region sequence

  1. (1. China National Bamboo Research Center, Hangzhou 310012, China; 2. Key Laboratory of High Efficient Processing of Bamboo of Zhejiang Province, Hangzhou 310012, China)
  • Online:2016-02-25 Published:2016-03-10

摘要: 为了探讨怀集县铁厘茶竿竹和白水茶竿竹与其他茶竿竹亚属竹种之间在分子水平上的差异以及它们的分类地位,对包括铁厘茶竿竹和白水茶竿竹在内的9个茶竿竹亚属竹种的核糖体基因(nrDNA)的内转录间隔区(ITS)序列进行分析,并构建系统进化树。结果表明,所有供试材料ITS全长在559~648 bp,(G+C)含量变化范围为46.02%~57.65%,其中铁厘茶竿竹和白水茶竿竹ITS全长分别为559 bp和614 bp,(G+C)含量分别为55.64%和57.65%。ITS序列构建的系统进化树显示:正种茶竿竹及其变种聚为一个大支,其中铁厘茶竿竹和白水茶竿竹聚在一起。以上结果佐证了铁厘茶竿竹和白水茶竿竹是正种茶竿竹的2个变种。

关键词: 正种茶竿竹, ITS, 系统进化树

Abstract: The molecular differences among Pseudosasa amabilis var. ferrea, Pseudosasa amabilis var. peshuiensis and other Chagan\|bamboo species were identified by analyzing internal transcribed spacer sequence in nrDNA of P.amabilis var. ferrea, P.amabilis var. peshuiensis and other 7 Chagan\|bamboo species. and the phylogenetic tree was established to clarify their taxonomic status. The results showed that ITS length of all tested species ranged from 559 to 648 bp, and their (G+C) content ranged from 46.02% to 57.65%. ITS length of P.amabilis var. ferrea and P.amabilis var. peshuiensis was 559 bp and 614 bp, respectively. Their (G+C) content was 55.64% and 57.65%, respectively. The established phylogenetic tree showed that P.amabilis and its varieties were clustered in one big group, in which P.amabilis var. ferrea and P.amabilis var. peshuiensis were clustered into one small group. The above results indicated that P.amabilis var. ferrea and P.amabilis var. peshuiensis were two variants of Pseudosasa amabilis.

Key words:  Pseudosasa amabilis, ITS, phylogenetic tree