Construction of cDNA Library and its Application in the Study on Plant Resistance

cDNA library is the pool of cDNA fragments which are ligated with vectors,and cDNA fragments are reverse-transferred from total mRNAs of some organism at certain period.cDNA library has the important significance in the research on the differential gene expressing of different tissues and growth-periods.In the paper the kind of cDNA library construction was simply summarized and the application of cDNA library in the study on plant resistance was described.