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植物研究 ›› 2002, Vol. 22 ›› Issue (4): 473-478.

• 论文 • 上一篇    下一篇

菜豆种质资源RAPD多样性的研究I

栾非时1, 祖元刚2   

  1. 1. 东北农业大学, 哈尔滨 150030;
    2. 东北林业大学, 哈尔滨 150040
  • 收稿日期:2002-02-16 出版日期:2002-12-15 发布日期:2016-06-14
  • 作者简介:栾非时(1964-),女,副教授,博士,主要从事蔬菜分子生物学、蔬菜专家系统设施园艺方向的研究。

RAPD DIVERSITY OF GERMPLASM RESOURCES ON PHASEOLUS VULGARIS I

LUAN Fei-shi1, ZU Yuan-gang2   

  1. 1. Northeast Agricultural University, Harbin 150030;
    2. Northeast Forestry University, Harbin 150040
  • Received:2002-02-16 Online:2002-12-15 Published:2016-06-14

摘要: 收集了国内43个菜豆栽培品种,国际热带农业中心13个半野生品种,波兰4个矮生品种,共60个菜豆品种资源,将其分成三大类型,即蔓生种35个,矮生种12个,半野生种13个,从RAPD标记开展研究,探明种内及各种群间的遗传多样性。采用简易SDS方法从60份菜豆幼叶中提取基因组DNA,使用经过筛选的29个引物共检测到314个位点,多态位点比率为0.854,其中蔓生种多态位点比率最高达0.958,矮生种为0.733,半野生种为0.573,说明60个菜豆种质资源中蔓生种多态位最强。根据Shannon指数和Nei指数的估测,菜豆种内的遗传多样性主要分布于蔓生种群内,在所研究的蔓生、矮生、半野生种群中,蔓生种群的遗传多样性水平最高,矮生种群其次,半野生种群最次。在全部314条扩增带中,有10条谱带分别为蔓生种所特有,矮生种及半野生种分别有1条特征谱带,说明蔓生种的遗传变异水平较大。

关键词: 菜豆, RAPD, 遗传多样性

Abstract: Sixty varieties of Phaseolus vulgaris were collected, including 43 from Heilongjiang Province, 13 from The Center of International Agriculture Tropic and 4 from Poland, which were classified as 35 for vine, 12 for dwarf and 13 for semi-wild varieties. This study was to analyze the genetic similarity and genetic distance in population and among populations of the 60 varieties and to draw the dendrogram of cluster analysis by using the markers of RAPD. Genomic DNA was extracted from young leaves of 60 Phaseolus vulgaris using a modified SDS method. 314 repeatable loci were detected through the use of 29 selected primers. The ratio of polymorphic loci was 0.854, of which 0.958 for vine, 0.733 for dwarf and 0.573 for semi-wild variety. The polymorphic loci for vine variety was the strongest among the 60 varieties. The genetic diversity of Phaseolus vulgaris was mainly distributed in vine population according to the measurement of Shannon index and Nei's index. Among the population of Phaseolus vulgaris studied so far, the level of genetic diversity for 3 populations was as follows, vine >dwarf >semi-wild.

Key words: Phaseolus vulgaris, RAPD, genetic diversity