Flavonoid Variation and Genetic Structure of Populations of Yushania niitakayamensis (Hay.)Kang f. (Bambusoideae) in Mt. Hohuan.

• Main Authors: Bing-Shin Wang, 王冰心
• Other Authors: Ju-Ying Hsiao;Chern-Hsiung Ou
• Format: Others
• Language: zh-TW
• Published: 1994
• Online Access: http://ndltd.ncl.edu.tw/handle/47256504083553285793

碩士 === 國立中興大學 === 植物學系 === 82 === Yushan cane(Bambusoideae)is a native species of Taiwan.It is widely distributed from 1,500 to 3,500 above sea level in Taiwan .It shows great phenotypic variability in different habitats.The flavonoid data of six sites at 3 different altitudes and 2 different kinds of habitates were used in a cluster analysis and a principle component analysis. The results of cluster analysis and principle component analysis indicate that flavonoid compos- ition diversifies according to habitates.Genetic variation were investigated using isozyme starch gel electrophoresis.A total of 15 enzyme systems and 24 loci were studied.Twenty out of 24 loci examined were polymorphic(99% criterion).The average proporation of polymorphic loci per site was 66.7% at the 99% criterion for polymorphism,F-statistics and gene diversity analysis,the result indicated that 6.8% of variation were distributed among sites. The estimate of gene flow (Nm) was 3.462, indicating high gene flow among sites. The Fst and Gst of 0.068 indicated that there was certain degree of diversificaton among sites.The results of a cluster analysis using Taxonomic distance matrix and a non- metric multidimensional analysis showed that, there was a tendency of grouping according to habitats.