Up to date , china has finished sorting out and revising foreign - related laws , regulations and rules at national level . the work at local level is also going on 到目前为止，中国已完成了国家一级涉外经济法律、法规、规章的清理和修订工作，地方涉外经济法规的清理、修订工作也正在进行之中。
Green fluorescent protein ( gfp ) gene was conjugated to the 3 " end of the pap gene in order to screen easily of the transgenic cotton plants . the combined gene was cloned into plant expression vector pbi121 and then transformed . about 5000 seeds of the transgenic cotton were obtained and the some seedlings of the transgenic cotton could give a bright green fluorescence in the dark condition when the cotton seedlings were irradiated with ultraviolet rays 为了便于转基因棉花后代的筛选，在pap基因的3 ’端融入了绿色荧光蛋白gfp ）基因，然后将融合基因克隆在植物表达载体pbi121上，再进行遗传转化，得转基因棉花种子5000余粒，将种子播种长到于叶展开时，先在黑暗中用紫外灯照射，查找表现绿色荧光的幼苗，然后再用地高辛（ dig ）标记的pap基因特异性探针对这些棉花进行点杂交，最后发现有8株棉花表现阳性反应，说明pap基因的确己经转到了棉花的基因组中，其棉花黄萎病的抗性鉴定正在进行之中。
