秦岭地区华中五味子天然居群叶、花形态变异研究-陕西师范大学学报期刊社网站

陕西师范大学学报（自然科学版）

生命科学

秦岭地区华中五味子天然居群叶、花形态变异研究

罗成1，顾蔚1,2,3 *，孙茂1，王喆之1,2,3

(1 陕西师范大学生命科学学院； 2 药用资源与天然药物化学教育部重点实验室； 3 西北濒危药材资源开发国家工程实验室，陕西西安710062)

罗成，男，硕士研究生，主要研究方向为植物遗传多样性.* 通信作者：顾蔚，男，副教授. E-mail: weigu@snnu.edu.cn.

摘要:

为评价秦岭地区华中五味子遗传多样性水平，选取3个华中五味子天然居群进行表型性状变异研究.结果表明，华中五味子除最大花瓣长宽比（LPLW）以外的其余12个表型性状在居群间和居群内均存在极显著差异；变异系数（CV）最大和最小的分别是叶柄长（PtL）2801% 和花瓣数（PN）953%；心皮数（CN）的相对极差值（R′i）高达8912%；居群间表型分化系数（VST）变异范围0～3723%，平均值1301%，表明表型变异主要存在于居群内.根据UPGMA聚类将3个天然居群分成2类，华县和太白县为一类，柞水县为一类.

关键词：

华中五味子；天然居群；形态变异；秦岭

收稿日期：

2010-01-18

中图分类号：

Q 348

文献标识码：

文章编号：

1672-4291(2010)06-0071-06

基金项目：

国家“十一五”科技支撑项目（2006BAI06A13—06）；国家自然科学基金资助项目（31070293）；陕西师范大学2009年研究生培养创新基金项目（2009CXS032）.

Doi:

Morphological variations of leaf and flower in natural populations of Schisandra sphenanthera Rehd. et Wils. in Qinling Mountain

LUO Cheng1, GU Wei1,2,3 *, SUN Mao1, WANG Zhe-zhi1,2,3

(1. College of Life Science, Shaanxi Normal University； 2. Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry；3. National Engineering laboratory for Resource Development of Endangered Crude Drugs in Northwest of China, Shaanxi Normal University, Xi′an, 710062, Shaanxi, China)

Abstract:

To evaluate the level of genetic diversity of Schisandra sphenanthera Rehd. et Wils.in Qinling mountain, 3 natural populations of Schisandra sphenanthera Rehd. et Wils. were analyzed using morphological markers. The results showed that 12 phenotypic traits excluding the largest petal length/ width (LPLW) were significantly difference in genetic variation among and within populations. The largest coefficient of variation (CV) was petiole length (PtL), 2801%, the smallest one was the petals number (PN), 953%. Carpel number (CN) of relatively range (R′i) is up to 8912%. Phenotypic differentiation coefficients (VST) ranged from 0 to 3723%, the mean value was 1301%, indicating that variation within population was dominant for total phenotypic variation. According to UPGMA cluster, the three natural populations could be divided into two groups based on 13 morphological traits, one was Huaxian county and Taibai county, the other was Zhashui county.

KeyWords:

Schisandra sphenanthera Rehd. et Wils.；natural population; morphological variation; Qinling Mountain