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Molecular identification of a pancreatic lipase-like gene involved in sex pheromone biosynthesis of Bombyx mori
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作者 song-dou zhang Xun Li +3 位作者 Zhu Bin Meng-Fang Du Xin-Ming Yin Shi-Heng An 《Insect Science》 SCIE CAS CSCD 2014年第4期459-468,共10页
Cytoplasmic lipid droplet (LD) lipolysis is regulated by pheromone biosynthe- sis activating neuropeptide (PBAN) in Bombyx mori. To elucidate the molecular mechanism of cytoplasm LD lipolysis, the pancreatic lipas... Cytoplasmic lipid droplet (LD) lipolysis is regulated by pheromone biosynthe- sis activating neuropeptide (PBAN) in Bombyx mori. To elucidate the molecular mechanism of cytoplasm LD lipolysis, the pancreatic lipase-like gene in B. mori pheromone glands (PGs), designated as B. mori pancreatic lipase-like gene (BmPLLG), was identified in this study. Spatial expression analysis revealed that BmPLLG is a ubiquitous gene present in all studied tissues, such as PGs, brain, epidermis, egg, midgut, flight muscle and fat body. Temporal expression analysis showed that the BmPLLG transcript begins to express 96 h before eclosion (-96 h), continues to increase, peaks in newly emerged females and steadily decreases after eclosion. Translational expression analysis of BmPLLG using a prepared antiserum demonstrated that BmPLLG was expressed in an age-dependent pat- tern at different development stages in B. mori. This finding was similar to the transcript expression pattern. Further RNA interference-mediated knockdown of BmPLLG signifi- cantly inhibited bombykol production. Overall, these results demonstrated that BmPLLG is involved in PBAN-induced sex pheromone biosynthesis and release. 展开更多
关键词 Bombyx mori LIPASE RNAI sex pheromone
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