鸣禽前脑听觉和鸣唱系统zenk 基因的诱导表达 - 生命科学研究.PDFVIP

16 卷 6 期 生命科学研究 灾燥造援员6 晕燥援6 圆园12 年 12 月 蕴蚤枣藻 杂糟蚤藻灶糟藻 砸藻泽藻葬则糟澡 Dec. 圆园12 述 鸣禽前脑听觉和鸣唱系统zenk 基因的诱导表达 * 刘少艺, 冯 理, 张 萌, 李东风 (华南师范大学生命科学学院, 中 广东 广州 510631) 摘 要院 鸣曲和鸣唱行为可以诱导鸣禽前脑不同区域的z enk 基因表达. 鸣禽听到同类鸣曲时在听觉系统会出 现ze nk 表达, 并在致聋后这种诱导消失. 而鸣禽鸣唱时, 在鸣唱系统同样有z enk 基因的表达, 且不依赖于听觉 反馈, 因为致聋鸟只要发声就可以诱导表达. 大量的研究表明, ze nk 基因在听区的诱导表达不仅可对同类鸣曲 进行识别, 而且在教习曲模板的记忆方面发挥重要作用. 鸣唱系统z enk 基因诱导表达则主要与鸣曲的产生与 维持有关. z enk 基因在两个系统中的诱导表达将听觉感知与鸣唱运动紧密联系起来. 关键词: z enk 基因; 诱导表达; 听觉系统; 鸣唱系统; 鸣禽 中图分类号: Q959.7 文献标识码: A 文章编号: 1007 7847(2012)06 0551 06 Song and Singing induced zenk Gene Expression in Auditory and Song System of Songbird Forebrain LIU Shao yi, FENG Li, ZHANG Meng, LI Dong feng* (School of L ife Science, South China Normal Unive rs ity, Guangz hou, 510631, Guangdong, China) Abstract ：Song and singing can induce z enk gene expression in different areas of a songbird ’s forebrain. z enk gene was rapidly activated in the brain of a songbird by conspecific song, which would disappear after deafening. Moreover, the act of singing induced z enk gene expression in song nuclei, which was independent of auditory feedback. Evidence has suggested that z enk gene expression in auditory system is associated with recognition of birdsong and memory of tutor song. z enk gene expression in song system is also related to song production and maintenance. Thus, z enk gene expression is involved in not only the auditory system but also the song system. Key words: z enk gene; expression; auditory system; song system; songbirds