SENSORY NEURONS AND PERIPHERAL PATHWAYS IN DROSOPHILA EMBRYOS
SENSORY NEURONS AND PERIPHERAL PATHWAYS IN DROSOPHILA EMBRYOS
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DOI：
10.1007/bf00376060
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发表时间：
1986-01-01
期刊：
影响因子：
--
通讯作者：
JAN, YN
中科院分区：
文献类型：
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作者：
GHYSEN, A;DAMBLYCHAUDIERE, C;JAN, YN
果蝇胚胎胸段和腹段含有373个支配外部感觉结构的神经元和162个支配弦音器官的神经元。这些神经元以高度不变的模式排列在每个节段内的腹侧、侧和背侧簇中。当感觉轴突向CNS腹侧生长并与从CNS背侧生长的运动轴突相遇时，在每个节段中形成两个束。除最后一段外，前束由背侧和外侧神经元组成，后束由腹侧神经元组成。描述了五种不同的节段模式，对应于（1）前胸，（2）其他两个胸段，（3）前七个腹段，（4）第八和（5）第九（可能是第十）腹段。
The thoracic and abdominal segments of theDrosophilaembryo contain 373 neurons innervating external sensory structures and 162 neurons innervating chordotonal organs. These neurons are arranged in ventral, lateral and dorsal clusters within each segment, in a highly invariant pattern. Two fascicles are formed in each segment as the sensory axons grow ventrally towards the CNS and meet motor axons growing dorsally from the CNS. In all but the last segment, the anterior fascicle is contributed by the dorsal and lateral neurons, while the posterior one is formed by the ventral neurons. Five distinct segmental patterns are described, corresponding to (1) the prothorax, (2) the other two thoracic segments, (3) the first seven abdominal segments, (4) the eighth and (5) the ninth (and possibly the tenth) abdominal segments.