中文摘要：

miRNA广泛存在于真核生物中,并在多种生理过程中发挥着重要的作用。本文简要介绍了家蚕miRNA及其在抗病毒机制中功能作用的研究进展。开展家蚕miRNA在家蚕抗病毒作用机制的研究,不仅有助于全面了解家蚕miRNA的功能及其调控机制,而且对于促进家蚕病毒病的早期诊断、防治和抗病育种具有重要意义。

英文摘要：

MiRNAs, found in eukaryotes, play important roles in various physiological processes through posttranscriptional regulation of gene expression. The research progress of miRNA in the silkworm, Bombyx mori and its roles in the antiviral mechanisms were introduced briefly in this paper. The research on the roles of miRNA in B. mori against viruses may not only contribute tounderstanding of B. mori miRNA functions, but also be important to promote early diagnosis of virus diseases, new approaches of disease defense and antiviral breeding of B. mori.