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小扁豆核型的比较分析

Comparative Analysis of Lens culinaris Medic. Karyotype

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【作者】 杨秀英杨国华苏震云彭永康

【Author】 YANG Xiu ying,YANG Guo hua,SU Zhen yun,PENG Yong kang (College of Chemistry and Life Sciences,Tianjin Normal University, Tianjin 300074,China)

【机构】 天津师范大学化学与生命科学学院!天津300074

【摘要】 采用去壁低渗火焰干燥法制备小扁豆染色体标本观察其核型 ,结果表明 ,绿小扁豆和红小扁豆的核型公式均为 2n =2x =16 =6m +6sm +2st+2st(SAT) ,两种小扁豆的核型类型都是 3B ,染色体相对长度系数组成均为 2n =2x =16 =4L +6M2 +6M1+4S ,二者主要在第 7号染色体臂比和2号染色体大小方面有明显差异

【Abstract】 Karyotype analysis of two varieties of Lens culinaris Medic has been studied by means of preparing mitotic chromosome specimen and Giemsa staining technique.The results obtained showed that they have the same formula of 2n=2x=16=6m+6sm+2st+2st(SAT). They all have “3B” karyotype. They have the same chromosome relative length coefficient of 2n=2x=16=4L+6M 2+6M 1+4S. The obvious difference on arm ratio of the seventh chromosome and length of the second chromosome has been gained between the two varieties of Lens culinaris Medic.

【关键词】 小扁豆染色体核型随体(SAT)
【Key words】 Lens culinarisMedicChromosomeKaryotypeSatellite(SAT)
  • 【文献出处】 华北农学报 ,ACTA AGRICULTURAE BOREALL—SINICA , 编辑部邮箱 ,2000年02期
  • 【分类号】S643.5;Q243
  • 【被引频次】1
  • 【下载频次】62
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