Northern blot showed that A4-1 clone was specifically expressed in the antenna of H. armigera and the expressed level was higher in male antenna than that in female ones, which was similar to the expression of PBP-Harm gene from cotton bollworm.

• Northern杂交表明,克隆A4-1在棉铃虫触角中专一性表达,并且在雄蛾触角中的表达量明显比雌虫中高,这与棉铃虫性外激素结合蛋白基因的表达相似。