Molecular cloning of [Thr^4, His^7]-corazonin (Apime-corazonin) and its distribution in the central nervous system of the honey bee Apis mellifera (Hymenoptera: Apidae)

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概要

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• Corazonin (Crz) is a neuropeptide with a conserved structure and distribution pattern in the central nervous system (CNS) of many insects. We cloned the Crz gene from brains of the honey bee workers (Apis mellifera L., Apime). The ApimeCrz cDNA comprises 502 base pairs and encodes a new form of corazonin displaying Thr^4 substitution of [His^7]-corazonin. In workers of A. mellifera, corazonin immunoreactivity was found in a group of four to five lateral neurosecretory cells (LNSC) in each hemisphere of the protocerebrum and in lateral paired neurons segmentally distributed in the ventral ganglia. However, the ApimeCrz mRNA was transcribed only in the LNSC. The Crz LNSC projected into the ipsilateral corpus cardiacum. The pattern of distribution of corazonin immunoreactive material in the CNS suggests that Apime-corazonin plays roles as a neurohormone as well as a neurotransmitter or neuromodulator. The effects of this neuropeptide on the induction of dark color in albino nymphs of Locusta migratoria and spinning rate in spinning larvae of Bombyx mori were assayed. The results indicate that Apime-corazonin shows biological activities comparable to those for [Arg^7]- and [His^7]-corazonins.

• 日本応用動物昆虫学会の論文
• 2006-05-25

著者

• SATAKE Honoo

  Suntory Institute for Bioorganic Research

• Kimura Kiyoshi

  Honeybee Res. Group Animal Breeding And Reproduction Res. Team National Inst. Of Livestock And Grass

• ROLLER Ladislav

  Developmental Biology Department, National Institute of Agrobiological Science (NIAS)

• TANAKA Seiji

  Division of Insect and Animal Sciences, NIAS at Ohwashi, Independent Administrative Institution

• KIMURA Kiyoshi

  Department of Animal Breeding and Reproduction, National Institute of Livestock and Grassland Scienc

• TANAKA Yoshiaki

  Developmental Biology Department, National Institute of Agrobiological Science (NIAS)

• Roller Ladislav

  Developmental Biology Department National Institute Of Agrobiological Science (nias):institute Of Zo

• Tanaka Seiji

  Division Of Insect And Animal Sciences Nias At Ohwashi Independent Administrative Institution

• Tanaka Yoshiaki

  Developmental Biology Department National Institute Of Agrobiological Science (nias)

• Tanaka Yoshiaki

  Developmental Biology Department National Institute Of Agrobiological Science

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