Unusual pheromone receptor neuron responses in heliothine moth antennae derived from inter-species imaginal disc transplantation.
Unusual pheromone receptor neuron responses in heliothine moth antennae derived from inter-species imaginal disc transplantation.
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来自种间成虫盘移植的夜蛾触角中异常的信息素受体神经元反应。
DOI：
10.1007/s00359-002-0371-1
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发表时间：
2003
期刊：
影响因子：
--
通讯作者：
Baker,TC
中科院分区：
文献类型：
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作者：
Ochieng,SA;Poole,K;LinnJr,CE;Vickers,NJ;Roelofs,WL;Baker,TC
单细胞电生理记录的嗅觉感受器神经元安置在毛状体感受器沿着成虫的触角，通过在幼虫之间移植触角的成虫的成虫成虫的成虫成虫的触角的成虫在移植的触角上取样的大多数C型感受器的嗅觉感受器神经元显示出与捐献触角的物种一致的反应特征。然而，在任何一种移植类型中采样的一些C型感受器含有以受体物种特有的方式做出反应的嗅觉感受器神经元，或者其他以前在两个物种的C型感受器中都没有发现的神经元。单细胞数据有助于解释行为结果，即一些移植雄性确实迎风飞向两个物种的信息素混合物，根据已知的触角感觉表型，这一结果是意想不到的。我们的结果表明，宿主组织可以影响触角嗅觉感受器神经元的发育，此外，由于有共同的系统发育祖先，供体组织具有产生各种感觉器和受体类型的遗传能力。
Single-cell electrophysiological recordings were obtained from olfactory receptor neurons housed in sensilla trichodea along the adult antennae arising from transplantation of the antennal imaginal discs between larval maleHelicoverpa zeaandHeliothis virescens. The olfactory receptor neurons from the majority of type C sensilla sampled on transplanted antennae displayed response characteristics consistent with those of the species that donated the antennae. However, some of the sensilla type C sampled in either transplant type contained olfactory receptor neurons that responded in a manner typical of the recipient species or other neurons that have not previously been found in the type C sensilla of either species. The single-cell data help to explain behavioral results showing that some transplant males do fly upwind to both species' pheromone blends, an outcome not expected based on known antennal sensory phenotypes. Our results suggest that host tissue can influence antennal olfactory receptor neuron development, and further that because of a common phylogenetic ancestry the donor tissue has the genetic capability to produce a variety of sensillar and receptor types.