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攀枝花地区麻疯树天然群体表型多样性研究
引用本文:罗建勋,和献峰,辜云杰,唐平,曹小军,杨培金.攀枝花地区麻疯树天然群体表型多样性研究[J].西南林学院学报,2008,28(6):31-35.
作者姓名:罗建勋  和献峰  辜云杰  唐平  曹小军  杨培金
作者单位:1. 四川省林业科学研究院,四川,成都,610081
2. 攀枝花市农林科学研究院,四川,攀枝花,617027
3. 四川省长江造林局凉山分局,四川,西昌,615608
基金项目:国家科技攻关计划,四川省科技攻关项目 
摘    要:为揭示攀枝花地区麻疯树现有天然群体的表型变异程度和变异规律,采用巢式方差分析、相关分析、聚类分析等方法,对该地区麻疯树天然分布区具有代表性的5个群体、云南元谋的1个群体种子及叶片性状进行比较分析.结果表明:该地区麻疯树表型性状在群体间和群体内存在丰富的遗传变异;群体间表型分化系数的变幅为22.00%-72.63%,均值为42.01%,群体间变异(42.01%)小于群体内变异(57.99%);米易和鳃鱼群体的平均变异系数较大,分别为12.81%和12.70%,而拉蚱和同德群体的平均变异系数较小,分别为10.50%和10.36%;鲢鱼和米易群体的重复力分别为0.27和0.29,均低于平均值0.35;利用群体间欧氏距离进行UPGMA聚类分析,把攀枝花地区麻疯树天然群体分为5类,只有鳃鱼和米易群体聚合为一类,其余群体均单独聚为一类.

关 键 词:麻疯树  天然群体  表型多样性

Study on Phenotypic Diversity of Natural Populations of Jatropha curcas in Panzhihua Area, Sichuan Province
LUO Jian-xun,HE Xian-feng,GU Yun-jie,TANG Ping,CAO Xiao-jun,YANG Pei-jin.Study on Phenotypic Diversity of Natural Populations of Jatropha curcas in Panzhihua Area, Sichuan Province[J].Journal of Southwest Forestry College,2008,28(6):31-35.
Authors:LUO Jian-xun  HE Xian-feng  GU Yun-jie  TANG Ping  CAO Xiao-jun  YANG Pei-jin
Institution:LUO Jian-xun , HE Xian-feng, GU Yun-jie, TANG ping, CAO Xiao-jun, YANG Pei-jin ( 1. Forestry Academy of Sichuan Province, Chengdu Sichuan 610081, China; 2. Panzhihua Academy of Agriculture and Forestry, Panzhihua Sichuan 617027, China; 3. Liangshan Division, Yangzhi River Silvicuture Bureau of Sichuan Province, Xichang Sichuan 615608, China)
Abstract:Seeds and leaves of 5 natural populations of Jatropha curcas in Panzhihua area, Sichuan Province and 1 natural population from Yuanmou County, Yunnan Province were sampled and comparatively studied by means of nested variance analysis, correlation analysis, clustering analysis and other methods to reveal the phe- notypic variation and rule of variability among the natural populations. The results showed that there was a great genetic variation both within and among natural populations in this region. The range of phenotypic differentiation coefficient among populations was 22. 00% -72. 63% , with the average value of 42. 01%. The variation among populations was 42.01% that was less than the variation within the populations with 57.99%. The Miyi and Ganyu populations had a higher variation coefficient, i. e. , 12.81% and 12.70% respectively. While Lazha and Tongde populations had a lower variation coefficient, which was individually 10. 50% and 10. 36%. The genetic repeatability of Miyi and Ganyu populations was 0. 27 and 0. 29 respectively, lower than the average value of 0. 35. The 6 natural populations of Jatropha curcas in Panzhihua region were classified into 5 categories by UPGMA clustering with Ohm's distance among the populations, i.e. , the Ganyu and Miyi populations were grouped into one category, while each of the rest 5 populations was separately classified into its own category.
Keywords:Jatropha curcas  natural population  phenotypic diversity
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