CLONING AND EXPRESSION ANALYSIS OF A CYTOPLASMIC JUVENILE HORMONE-BINDING PROTEIN FROM THE MUD CRAB, SCYLLA PARAMAMOSAIN (DECAPODA, BRACHYURA, PORTUNIDAE)
文献类型： 外文期刊
作者： Qian, Heng 1 ; Zhao, Ming 1 ; Jiang, Keji 1 ; Wang, Wei 1 ; Chen, Wei 1 ; Zhao, Junxia 1 ; Wang, Tian 1 ; Diao, Le 1 ; Ma, L 1 ;
作者机构： 1.Chinese Acad Fishery Sci, East China Sea Fisheries Res Inst, Minist Agr, Key Lab Aquat Genom, Shanghai 200090, Peoples R China
2.Shanghai Ocean Univ, Coll Aqua Life Sci & Technol, Shanghai 201306, Peoples R China
关键词： Gene expression; juvenile hormone-binding protein; methyl farnesoate; Scylla paramamosain
期刊名称：CRUSTACEANA （ 影响因子：0.529； 五年影响因子：0.65 ）
ISSN： 0011-216X
年卷期： 2019 年 92 卷 8 期
页码：
收录情况： SCI
摘要： Juvenile hormone (JH) has an important role in regulating the development of arthropods, and methyl farnesoate (MF) is the only juvenile hormone found in Crustacea to date. Juvenile hormone-binding proteins (JHBPs) bind to JHs and transport or deliver JH signals. In this study, the complete cDNA sequence of cytoplasmic JHBP (cJHBP) was obtained from Scylla paramamosain, which we named Sp-cJHBP. The putative protein sequence of Sp-cJHBP contains two conserved glyoxalase domains. Expression analysis revealed that Sp-cJHBP expression varied greatly among larval developmental stages, with a significant reduction at the Zoea-5 stage. Sp-cJHBP had the highest expression in the ovary, with low expression in other tissues of the female adult crabs. During ovarian development, the expression of Sp-cJHBP changed significantly in the ovary, though its trends correlated poorly with the ovarian developmental process. While the expression in the mandibular organ (MO) was similar to 3-hydroxy-3-methylglutaryl-CoA reductase (HMGR), which is a key gene involved in MF biosynthesis. After unilateral eyestalk ablation (ESA), the expression of Sp-cJHBP altered significantly in the ovary and MO, but not in cerebral ganglion and thoracic ganglion. Altogether, these results suggest that Sp-cJHBP is likely to function primarily in the ovary, probably through binding to MF.
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