Neuropeptides and related nucleic acid sequences detected in peneid shrimps by immunohistochemistry and molecular hybridizations

Laverdure, Anne-Marie; Carette-Desmoucelles, C.; Breuzet, M.; Descamps, M.

doi:10.1016/0306-4522(94)90265-8

Cited by 16 publications

(6 citation statements)

References 34 publications

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“…With the use of specific antisera developed against lobster H. americanus cHH, the presence of cHH‐like molecules has been demonstrated by immunohistochemistry in neurohemal organs of the myriapod centipede Lithobius forficatus and in the scorpion Euscorpius carpathicus 19 . In this last species, a strong immunoreaction is present in the neurosecretory endings of the coxal plexus, associated with the coxal gland (R. Stockmann, personal communication).…”

Section: Chh‐related Peptides In Other Arthropod Groupsmentioning

confidence: 99%

Occurrence and Diversity of Neuropeptides from the Crustacean Hyperglycemic Hormone Family in Arthropods

Soyez

1997

Annals of the New York Academy of Sciences

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CRUSTACEAN HYPERGLYCEMIC HORMONE FAMILY IN CRUSTACEANSIn crustaceans, it is well known that major physiological processes such as homeostasis, growth, and reproduction are regulated by neurohormones originating from the major neuroendocrine center, the X-organ-sinus gland complex, which is located, in decapods, within the eyestalks (see ref. 1 for review). These neuropeptides have recently been shown to be structurally related, thus defining a new peptide family designated as the crustacean hyperglycemic hormone (cHH) family, with c H H as the first described and the major neurohormone elaborated by the X-organ-sinus gland complex.' Until now, hyperglycemic neuropeptides had been isolated and sequenced from a number of different crustacean species (FIG. 1). cHHs are 72-73 aa residue peptides with six cysteyl residues forming three disulfide bridges in conserved positions. In addition, the primary structure of the cHHs is highly conserved among the different species with a percentage of homology above 60%. Other members of the cHH family are 75-78 aa residue inhibitory neuropeptides involved in the regulation of molting (molt-inhibiting hormone, MIH) and reproduction (gonad-inhibiting hormone, GIH; also called vitellogenesis-inhibiting hormone, VIH) (FIG. 1). MIH has been fully characterized in several species of crabs, in a crayfish, and in a shrimp, whereas VIH has been sequenced and cloned in the American lobster only. MIHs and VIH share more than 50% homology, but this value is lower than 30% when both are compared to cHHs. Major differences occur mainly at both ends of the neuropeptide molecules because the percentage of homology between cHHs and MIHs/VIH reaches 50%, with a conserved location of five cysteyl residues, when the central part (positions 23-52) of the molecules is considered. It was recently demonstrated that the mandibular organs of the crab Cnncerpugitrirs, which elaborate juvenile hormonelike compounds and are therefore considered as functional equivalents of insect ''

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Section: Chh‐related Peptides In Other Arthropod Groupsmentioning

confidence: 99%

Occurrence and Diversity of Neuropeptides from the Crustacean Hyperglycemic Hormone Family in Arthropods

Soyez

1997

Annals of the New York Academy of Sciences

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“…As for decapod CHHs, ITP genes produce an ITP-L isoform by alternative splicing, whose function remains elusive. To go further, heterologous immunostainings revealed the occurrence of CHH-like peptides in two branchiopods [15], a myriapod [16] and a chelicerate [17], and a gene was found in the genome of the nematode Caenorhabditis elegans , which encodes a putative peptide exhibiting a CHH family structural signature [3]. To increase our knowledge on the CHH family in the taxa cited above, we have conducted an in silico study on available genomic sequences from arthropods and nematodes.…”

Section: Introductionmentioning

confidence: 99%

Molecular evolution of the crustacean hyperglycemic hormone family in ecdysozoans

et al. 2010

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BackgroundCrustacean Hyperglycemic Hormone (CHH) family peptides are neurohormones known to regulate several important functions in decapod crustaceans such as ionic and energetic metabolism, molting and reproduction. The structural conservation of these peptides, together with the variety of functions they display, led us to investigate their evolutionary history. CHH family peptides exist in insects (Ion Transport Peptides) and may be present in all ecdysozoans as well. In order to extend the evolutionary study to the entire family, CHH family peptides were thus searched in taxa outside decapods, where they have been, to date, poorly investigated.ResultsCHH family peptides were characterized by molecular cloning in a branchiopod crustacean, Daphnia magna, and in a collembolan, Folsomia candida. Genes encoding such peptides were also rebuilt in silico from genomic sequences of another branchiopod, a chelicerate and two nematodes. These sequences were included in updated datasets to build phylogenies of the CHH family in pancrustaceans. These phylogenies suggest that peptides found in Branchiopoda and Collembola are more closely related to insect ITPs than to crustacean CHHs. Datasets were also used to support a phylogenetic hypothesis about pancrustacean relationships, which, in addition to gene structures, allowed us to propose two evolutionary scenarios of this multigenic family in ecdysozoans.ConclusionsEvolutionary scenarios suggest that CHH family genes of ecdysozoans originate from an ancestral two-exon gene, and genes of arthropods from a three-exon one. In malacostracans, the evolution of the CHH family has involved several duplication, insertion or deletion events, leading to neuropeptides with a wide variety of functions, as observed in decapods. This family could thus constitute a promising model to investigate the links between gene duplications and functional divergence.

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“…Moreover, CHHs have been detected in the eyestalk or sinus gland of species of some non-decapod orders, such as Stomatopoda (Keller 1969) and Isopoda (Gersch and Eibisch 1976;Martin et al 1984aMartin et al , b, 1993Nussbaum and Dircksen 1995). Several malacostracan members of a growing peptide family are now well known in crustaceans (for a review, see Keller 1992), but similar molecules obviously exist with probably different functions in other arthropod groups (Laverdure et al 1994;Meredith et al 1996). Although a widespread occurrence of CHHs in crustaceans was suggested earlier (Keller et al 1985), there is, however, no report on CHHs in lower orders of Crustacea, for instance in members of the Entomostraca.…”

Section: Introductionmentioning

confidence: 99%

Crustacean hyperglycaemic hormone in the nervous system of the primitive crustacean species Daphnia magna and Artemia salina (Crustacea: Branchiopoda)

Zhang

Keller

Dircksen

1997

Cell and Tissue Research

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Crustacean hyperglycaemic hormone-immunoreactive neuronal systems are detected in the central and peripheral nervous systems of two entomostracan crustaceans, Daphnia magna and Artemia salina, by immunocytochemistry using specific antisera against crustacean hyperglycaemic hormones of the decapod crustaceans Orconectes limosus and Carcinus maenas. In D. magna, four small putative interneurones are detected in the brain. In the thorax, ten bipolar peripheral neurones are stained by both antisera. They are obviously segmental homologues with centrally projecting axons that form interdigitating varicose fibres and terminals in putative neurohaemal areas next to the surface of the anterior part of the thoracic ganglia. Similar immunopositive neurones occur both in the central and peripheral nervous systems of A. salina. A total of five groups of neurones occur in the protocerebrum, the deutocerebrum and the mandibular ganglion. Some of the protocerebral neurones are bipolar and project to the dorsal frontal organ. A single pair of peripheral multipolar neurones in the maxillary segment projects centrally into the ventral nerve cord and innervates unidentified somatic muscles and tissues in the maxillary and the first appendage segments. None of the brain neurones in both species show similarities to decapod X-organ sinus gland neurosecretory neurones. Chromatography of brain extracts of D. magna combined with immunodot blotting revealed two strongly immunoreactive fractions at retention times close to that of the crustacean hyperglycaemic hormone of crayfish. Moreover, preabsorption controls suggest that the cross-reacting peptides of D. magna and A. salina are structurally closely related to those of decapods.

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Neuropeptides and related nucleic acid sequences detected in peneid shrimps by immunohistochemistry and molecular hybridizations

Cited by 16 publications

References 34 publications

Occurrence and Diversity of Neuropeptides from the Crustacean Hyperglycemic Hormone Family in Arthropods

Occurrence and Diversity of Neuropeptides from the Crustacean Hyperglycemic Hormone Family in Arthropods

Molecular evolution of the crustacean hyperglycemic hormone family in ecdysozoans

Crustacean hyperglycaemic hormone in the nervous system of the primitive crustacean species Daphnia magna and Artemia salina (Crustacea: Branchiopoda)

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