中国农业科学 ›› 2012, Vol. 45 ›› Issue (23): 4939-4946.doi: 10.3864/j.issn.0578-1752.2012.23.022

• 研究简报 • 上一篇    下一篇

烤烟耐烤性的遗传效应

 郝贤伟, 徐秀红, 许家来, 崔胜利, 王传义, 张兴伟, 任夏, 朱佩, 张忠锋   

  1. 1.中国农业科学院烟草研究所/农业部烟草生物学与加工重点实验室,山东青岛 266101
    2.中国农业科学院研究生院,北京 100081
    3.山东烟草研究院,济南 250101;4淄博烟草有限公司,山东淄博 255035
  • 收稿日期:2012-08-20 出版日期:2012-12-01 发布日期:2012-11-05
  • 通讯作者: 通信作者张忠锋,E-mail:zhzhf1969@163.com
  • 作者简介:郝贤伟,E-mail:haoxianwei1987@163.com
  • 基金资助:

    国家公益性行业(农业)科研专项(201203091)、中国烟草总公司科技重点项目(110201002017)

Genetic Effects of Holding Curing Potential in Flue-Cured Tobacco

 HAO  Xian-Wei, XU  Xiu-Hong, XU  Jia-Lai, CUI  Sheng-Li, WANG  Chuan-Yi, ZHANG  Xing-Wei, REN  Xia, ZHU  Pei, ZHANG  Zhong-Feng   

  1. 1.Tobacco Research Institute of Chinese Academy of Agricultural Sciences/Key Laboratory of Tobacco Biology and Processing, Ministry of Agriculture, Qingdao 266101, Shandong
    2.Graduate School of Chinese Academy of Agricultural Sciences,Beijing 100081
    3.Shandong Tobacco Academy, Ji’nan 250101; 4Zibo Tobacco Company Limited, Zibo 255035, Shandong
  • Received:2012-08-20 Online:2012-12-01 Published:2012-11-05

摘要: 【目的】变褐时间是衡量烟叶耐烤性的一个重要指标,对其分析并阐明烤烟耐烤性遗传效应。【方法】通过在暗箱试验中统计烟叶变褐比例,算出变褐指数(BI=∑B/n)作为耐烤性量化标准,并应用主基因+多基因混合遗传模型的6世代联合分析方法,对2个杂交组合(云烟85×大白筋599和中烟100×翠碧1号)的6个世代群体(P1、P2、F1、B1、B2和F2)中部叶烤烟耐烤性状进行遗传分析。【结果】供试组合的烤烟品种耐烤性的遗传符合E-0模型,即由2对加性-显性-上位性主基因+加性-显性-上位性多基因混合控制。主基因都以负向加性效应为主,主基因遗传率都较高,其中F2群体最高;多基因遗传率都较低。【结论】基于烤烟品种耐烤性的遗传效应,重视亲本材料和高世代对耐烤性的选择是十分必要的。

关键词: 烤烟, 耐烤性, 主基因+多基因, 遗传分析

Abstract: 【Objective】 The browning time is an important indicator to measure the holding potential of flue-cured tobacco. This property has long been exploited to elucidate the genetic effects of holding potential in flue-cured tobacco.【Method】The quantifying standard was formulated by observing and calculating the browning indexes (BI = ∑ B/n) via an experiment under dark condition. The holding curing potential of 6 generations (P1, P2, F1, F2, B1 and B2 ) derived from two crosses (Yunyan85×Dabaijin599 and Zhongyan100×Cuibi1) were genetically analyzed with the mixed major-gene plus polygene inheritance model. 【Result】The holding curing potential of flue-cured tobacco was largely controlled by two major genes having additive-dominance- epistatic effect along with polygenes having additive-dominance-epistatic effects (Model E-0). The two major genes controlling the holding potential were found having negative additive effect. The heritability of all major genes was higher for the two crosses and the F2 generation showed the highest heritability. The heritability of polygenes was lower than major genes in all the segregating generations.【Conclusion】 Based on the genetic effects of holding potential of flue-cured tobacco varieties, it is essential to pay special attention to the parental material and the high generation in selecting the holding curing potential trait.

Key words: flue-cured tobacco, holding curing potential, major-gene plus polygene, genetic analysis