杜鹃红山茶遗传多样性的ISSR分析(英文)

被引：41

作者：

罗晓莹 ^{[1
]}

庄雪影 ^{[1
]}

杨跃生 ^{[2
]}

机构：

[1] 华南农业大学林学院

[2] 华南农业大学生命科学学院

来源：

热带亚热带植物学报 | 2007年 / 02期

关键词：

杜鹃红山茶; 特有种; 遗传多样性; ISSR;

D O I：

暂无

中图分类号：

S685.14 [山茶];

学科分类号：

摘要：

运用ISSR分子标记技术,利用筛选的10条ISSR引物,对珍稀濒危植物杜鹃红山茶(Camellia changii Ye)2个亚种群60个单株的遗传多样性进行了研究。结果表明:物种水平上的多态位点百分率(PPB)为55.29%,Nei’s基因多样性指数(H)及Shannon多态性信息指数(I)分别为0.2191和0.3215。种群间的遗传分化系数(GST)仅为0.0922。研究结果揭示了杜鹃红山茶的遗传多样性较低,亚种群间遗传分化较小。小种群和人为活动干扰是杜鹃红山茶现存种群的主要限制因素。影响杜鹃红山茶种群发展的其它因素亟需进一步研究。

引用

页码：93 / 100

页数：8

共 8 条

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