基于ITS的我国桑科植物分子系统学研究

目的]基于ITS序列初步探讨我国桑科植物的分子系统学。方法]测定33份桑科材料的ITS序列,通过最大简约法分析它们的分子系统学,并将分析结果与经典分类做比较。结果]在原始类群和单系类群的确定上与经典分类基本一致;"刺桑、叶被木、圆叶刺桑与桑属的亲缘关系近"这一结果与经典分类不一致。结论]该研究为我国桑科植物的系统学分析积累了分子生物学资料。

Study on Molecular Phylogeny of Moraceae in China Based on ITS

Objective] To analyze molecular phylogeny of Moraceae in China based on ITS.Method] The ITS sequences of 33 individuals were determined, and the molecular phylogeny was alalyzed by maximum parsimonious.Then we compared the results of the analysis with the classical classification.Result] The determination of primitive and monophyletic groups is basically consistent with the classical classification.The result showed that Taxotrophis ilicifolius, Streblus taxoides, Taxotrophis aquifolioides were close to Morus Linn.is not consistent with the classical classification.Conclusion] This research had accumulated molecular biology data for the classification of Moraceae in China.