注：a：链霉素抗性筛选；b：卡那霉素抗性筛选。

Note: a: streptomycin resistant screening; B: kanamycin resistant screening.

youdao

注：a：链霉素抗性筛选；b：卡那霉素抗性筛选。

Note: a: streptomycin resistant screening; B: kanamycin resistant screening.

youdao