MicroRNAs（miRNAs） are approximately 21-nt long,noncoding RNAs that play a pivotal role in post-transcriptional regulation of gene expression in plants.According to several miRNAs which had been found in citrus,however,little has been known about coldresistance related miRNA in citrus.In this study,the seedling of Procitrus trifoliata（L.） Raf.were cultivated in the normal as control and the cold conditions separately.The expressive level of miRNAs were identified by semi RT-PCR and real-time qPCR.The results showed that the e...
