中国农业科学2012，Vol.45Issue(23)：4939-4946,8.DOI:10.3864/j.issn.0578-1752.2012.23.022
烤烟耐烤性的遗传效应
Genetic Effects of Holding Curing Potential in Flue-Cured Tobacco
摘要
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, Fl, F2, B1 and B2 ) derived from two crosses (Yunyan85X Dabaijin599 and Zhongyanl00XCuibil) 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.关键词
烤烟/耐烤性/主基因+多基因/遗传分析Key words
flue-cured tobacco/holding curing potential/major-gene plus polygene/genetic analysis引用本文复制引用
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..烤烟耐烤性的遗传效应[J].中国农业科学,2012,45(23):4939-4946,8.基金项目
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) （农业）
