Differentially expressed genes in resistant and susceptible Bombyx mori strains infected with a densonucleosis virus
文献类型: 外文期刊
作者: Bao, Yan-Yuan;Ge, Jun-Qing;Zhang, Chuan-Xi;Li, Mu-Wang;Zhao, Yun-Po;Wang, Cheng-Shu;Huang, Yong-Ping
作者机构:
关键词: Bombyx mori;BmDNV-Z;BmDNV-resistant silkworm strain;Antiviral response;Suppression subtractive hybridization
期刊名称: INSECT BIOCHEMISTRY AND MOLECULAR BIOLOGY
ISSN: 0965-1748
年卷期: 2008 年 38 卷 9 期
页码:
收录情况: SCI
摘要: We investigated variations in the gene expression of Bombyx man following infection with a densonucleosis virus (BmDNV-Z). Two B. mori near-isogenic lines, Jingsong and Jingsong.nsd-Z.NIL, which are highly susceptible and completely resistant to BmDNV-Z, respectively, were used in this study. The infection profiles of BmDNV-Z in the midguts of the B. mori Jingsong and Jingsongnsd-Z.NIL larvae revealed that the virus invaded the midguts of both of these strains. However, its proliferation was notably inhibited in the midgut of the resistant strain. By using the suppression subtractive hybridization method, three cDNA libraries were constructed to compare BmDNV-Z responsive gene expression between the two silkworm lines. In total, 151 differentially expressed genes were obtained. Real-time qPCR analysis confirmed that 11 genes were significantly up-regulated in the midgut of the Jingsong. nsd-Z.NIL strain following BmDNV-Z infection. Our results imply that these up-regulated genes might be involved in B. mori immune responses against BmDNV infection. (c) 2008 Elsevier Ltd. All rights reserved.
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