中国科学家揭示熊猫与昆虫共享结构类似的性信息素成分
Published:05 Nov.2017    Source:http://www.caas.net.cn/xwzx/kyjz/284574.html

10月23日,中国农业科学院植物保护研究所王桂荣科研团队利用反向化学生态学的方法揭示熊猫与蛾子可能共享结构类似的性信息素成分。相关研究成果在线发表在《美国科学院院报(PNAS)》上。该研究证明了反向化学生态学研究策略不但适用于昆虫学的研究,也适用于其它脊椎动物尤其是组织不易获得的动物的研究。

王桂荣科研团队一直从事昆虫化学生态学的研究,提出了在反向化学生态学研究的基础上,以嗅觉基因为靶标高通量筛选害虫行为调控剂的新策略。该方法需要的试验材料少,而且也适用于其它动物嗅觉的研究。该研究以濒临物种熊猫为研究对象,首先从基因组中鉴定了用于感受性信息素的嗅觉基因,通过基因合成、体外表达和纯化获得了蛋白晶体,结合X-ray获得了该蛋白的晶体结构。通过筛选该蛋白的配体获得了潜在的熊猫的性信息素,其结构与蛾类性信息素成分结构类似。类似的结果在其它动物中也有过报道,例如大象与一种蛾子具有完全相同的性信息素(dodecenyl acetate)。

该研究以中国农科院植保所为第一完成单位,研究助理朱娇硕士和意大利国家研究中心西蒙娜·阿瑞纳(Simona Arena)博士为文章共同第一作者,王桂荣研究员和保罗·佩洛西(Paolo Pelosi)教授为共同通讯作者。该研究得到了植物病虫害生物学国家重点实验室开放课题资助。

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