摘要
本文利用生物测定法来分析亚洲玉米螟对氰戊菊酯抗性品系（３８．３倍）的遗传。氰戊菊酯抗性品系（Ｒ）和敏感品系（Ｓ）两杂交后代Ｆ＿１（Ｓ♀ｘＲ♂）及（Ｒ♀ｘＳ♂），对氰戊菊酯的ＬＤ＿（５０）和毒力回归线均在Ｒ和Ｓ品系之间，且两杂交后代的反应值均相近，抗性与性别无关。抗性的显性程度（Ｄ）测定得出，两Ｄ值分别为－０．０１和０．０５，均接近于０，表明该抗性为中间型，并由１个或多个不完全显性基因控制的。
The inheritance of fenvalerate resistance(38.3X)was analyzed by bioassays in astrain of the Asian corn borer, Ostrinia furnacalis Guenee. The LD_(50) and probit regression lines ofF_1hybrids(R♀xS♂and S♀xR♂)to fenvalerate are all between those of the two parentstrains.This is no significant difference between the RS and SR hybrids,and the resistance iswithout sex linkage. Degree of dominance(D)was estimated to be-0.01 and 0.05 for the tworeciprocal F_1 hybrids(SR and RS)respectively,and the two values are close to 0,which indi-cates that the resistance belongs to middle type and is controlled by one or more inoompletelydominant genes.
出处
《华东昆虫学报》
1995年第2期103-105,共3页
Entomological Journal of East China
