芹菜种质资源亲缘关系的ISSR分析

采用ISSR分子标记技术，利用5对优选引物，分析了105份芹菜资源的遗传多样性。聚类分析结果将105份芹菜资源分为5大类。在5大类资源中，大部分资源（81.9 %）都聚在第2组（西芹类），表明收集到的芹菜资源亲缘关系较近。主成分分析结果表明：我国芹菜资源大体上包括了西芹类和本芹类两个大的类别。在本芹类中，实心白芹与实心本芹的亲缘关系较紧密，推测实心白芹是由实心本芹变异而来。根据主成分分析结果和田间观察，又可将西芹类分为两大类：一类为生育期长、直立性强且耐抽薹的类型，另一类为生育期短、直立性弱且不耐抽薹的类型。

ISSR Analysis of Celery Germplasm Genetic Relationships

This study used 5 ISSR primer combinations to analyze genetic diversities among 105 celery(Apium graveolens L.var.dulce DC.)germplasm.The result showed that the cluster analysis based on ISSR data classified the celery germplasm into 5 major groups.In these groups,most of the samples(81.9 %)were gathered in group 2,indicating the collected germplasm with close blood relationship.The results of principle component analysis suggested that in China,celery cultivars include 2 categories which are the imported c...