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Diallel Crossing Analyses of Resistance to Main Diseases in Pepper(Capsicum annuum L.)

机译:辣椒对主要疾病的抗性Diallel杂交分析

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摘要

Fifteen capsicum combinations were made with 6 parents by (1/2)n(n-1) diallel crossing. Genetic parameters in the resistance to TMV, CMV, phytophthora blight, bacterial spot of these combinations were studied by Hayman. The results indicated that the resistance to TMV, CMV and bacterial spot conformed genetically to the "additive-dominant" model but the resistance to phytophthora blight did not and significant epistatic dominance effect existed in it. F1 hybrid's resistance to CMV was controlled by homozygous dominant gene (s), but resistance to bacterial spot by heterozygous one (s). There were little, or no sum of dominant effect and genomes controlling the dominant expression of F1 hybrids in its phytophthora blight resistance.
机译:通过(1/2)n(n-1)拨号杂交,与6个亲本进行了15种辣椒组合。 Hayman研究了这些组合对TMV,CMV,疫病疫霉,细菌斑点的抗性的遗传参数。结果表明,对TMV,CMV和细菌斑点的抗性在遗传上与“加性显性”模型相符,但对疫霉疫病没有抗性,并且在其中具有显着的上位优势作用。 F1杂种对CMV的抗性由纯合子显性基因控制,而杂合的对一个细菌斑点的抗性。 F1杂种的枯萎病抗性中几乎没有或没有显性作用和控制F1杂种显性表达的基因组。

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  • 来源
    《农业科学学报(英文版)》 |2005年第8期|589-593|共5页
  • 作者单位

    National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, P.R. China;

    National Research and Extension Center of New Pepper Variety Technology, Hunan Academy of Agricultural Sciences, Changsha 410125,P.R.China;

    National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, P.R. China;

    National Research and Extension Center of New Pepper Variety Technology, Hunan Academy of Agricultural Sciences, Changsha 410125,P. R. China;

    National Research and Extension Center of New Pepper Variety Technology, Hunan Academy of Agricultural Sciences, Changsha 410125,P. R. China;

    National Research and Extension Center of New Pepper Variety Technology, Hunan Academy of Agricultural Sciences, Changsha 410125,P. R. China;

    National Research and Extension Center of New Pepper Variety Technology, Hunan Academy of Agricultural Sciences, Changsha 410125,P. R. China;

    National Research and Extension Center of New Pepper Variety Technology, Hunan Academy of Agricultural Sciences, Changsha 410125,P. R. China;

    Institute of Vegetable and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, P.R. China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 chi
  • 中图分类 农业基础科学;
  • 关键词

    Pepper (Capsicam annuum L.); Diallel crossing; Resistance to disease; Genetic parameter estimate;

    机译:辣椒;辣椒杂交;抗病性;遗传参数估计;
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