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首页> 外文期刊>Genomics >Functional identification of an FMRFamide-related peptide gene on diapause induction of the migratory locust, Locusta migratoria L
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Functional identification of an FMRFamide-related peptide gene on diapause induction of the migratory locust, Locusta migratoria L

机译：与迁移蝗虫的延展诱导的FMRFamide相关肽基因的功能鉴定，Locusta Migratoria L

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摘要

FMRFamide-related peptides (FaRPs) are a type of neuropeptide, which participate in a variety of physiological processes in insects. Previous study showed that myosuppressin, being a member of FaRPs, initiated pupal diapause in Mamestra brassicae. We presumed that FaRPs genes might play a critical role in photoperiodic diapause induction of L. migratoria. To verify our hypothesis, flrf, a precursor gene of FaRP from L. migratoria, was initially cloned under long and short photoperiods that encoded by flrf gene identified from central nervous system (CNS). Phylogenetic analysis showed that the protein encoded by L. migratoria flrf gene, clustered together with Nilaparvata lugens (Hemiptera: Delphacidae) with 100% bootstrap support, was basically an FMRFamide precursor homologue. We noticed the availability of -RFamide peptides (GSERNFLRFa, DRNFIRFa) under short photoperiod only, which suggested their functions related to photoperiodic diapause induction. RNAi and quantitative real-time PCR (qRT-PCR) results further confirmed that the flrf gene promoted locust's diapause.
机译：FMRFamide相关的肽（FARP）是一种神经肽，其参与昆虫中各种生理过程。以前的研究表明，肌孢子素是嗜烟草的成员，在Mamestra Brassicae中启动了蛹延伸。我们推测，法律基因可能在光/周期性突变诱导L.迁移率中发挥着关键作用。为了验证我们的假设，FLRF是来自L.Migratoria的Farp的前体基因，最初在由中枢神经系统（CNS）中鉴定的FLRF基因编码的长和短的光周期下克隆。系统发育分析表明，由L.Migratoria FLRF基因编码的蛋白质与Nileaparvata Lugens（Healpera：Delphacidae）一起聚集在一起，具有100％的自血针支持，基本上是FMRFamide前体同源物。我们注意到在短的光周期下的-RFamide肽（GsernflrFA，Drnfirfa）的可用性，这表明其与光周期延伸诱导有关的功能。 RNAi和定量实时PCR（QRT-PCR）结果进一步证实了FLRF基因促进了蝗虫的延展。

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