The stage-and cell-specific expression of the Bombyx mori diapause hormone-pheromone biosynthesis activating neuropeptide (BomDH-PBAN) gene in the transformed Drosophila

Y. Ishida, T. Niimi, O. Yamashita
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引用次数: 3

Abstract

The diapause hormone (DH) -pheromone biosynthesis activating neuropeptide (PBAN) gene (BomDH-PBAN gene) of the silkworm, Bombyx mori encodes a polyprotein precursor from which DH is released to act on induction of embryonic diapause. We prepared a construct consisting of 7kb of 5' upstream region of the BomDH-PBAN gene fused with the lacZ reporter gene, and successfully introduced it into Drosophila germ line by the P-elementmediated transformation method. Expression of the reporter gene was monitored by enzyme activity and immunoreactivity from embryonic stage to adult stage. At the embryonic stage (stage 11-16), reporter gene expression was found in some cells of the antennomaxillary complex (AMC), the abdominal subepidermal layer at the lateral sides and the posterior spiracles. At the larval stage, some cells in the suboesophageal and the abdominal neuromere in the central nervous system (CNS) became stained clearly. From pupariation to adult eclosion, six ventromedial cells in the abdominal neuromere expressed the reporter gene. Immunocytochemistry using anti-FXPRL-NH2 neuropeptide serum identically traced the same ventromedial cells in the larval abdominal neuromere. Thus, we succeeded in generation of Drosophila melanogaster lines transformed with the BomDH-PBAN gene that should provide an ideal system to analyze the regulation mechanism of the BomDH-PBAN gene expression.
家蚕滞育激素-信息素生物合成激活神经肽(BomDH-PBAN)基因在转化果蝇中的分期和细胞特异性表达
家蚕的滞育激素(DH) -信息素生物合成激活神经肽(PBAN)基因(BomDH-PBAN基因)编码一个多蛋白前体,从该前体释放DH来诱导胚胎滞育。我们制备了一个由BomDH-PBAN基因5′上游7kb片段与lacZ报告基因融合而成的构建体,并通过p -element介导的转化方法成功导入果蝇种系。从胚胎期到成虫期,通过酶活性和免疫反应性监测报告基因的表达。在胚胎期(11-16期),在触角腋复合体(AMC)、腹部外侧表皮下层和后气门的部分细胞中发现了报告基因的表达。幼虫期,中枢神经系统(CNS)食道下和腹神经膜的部分细胞明显染色。从成虫羽化到成虫羽化,腹腔神经细胞中有6个腹内侧细胞表达了报告基因。免疫细胞化学使用抗fxprl - nh2神经肽血清追踪到幼虫腹内侧相同的细胞。因此,我们成功地获得了转化BomDH-PBAN基因的果蝇品系,为分析BomDH-PBAN基因表达的调控机制提供了一个理想的系统。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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