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Park JE, Patnaik BB, Sang MK, Song DK, Jeong JY, Hong CE, Kim YT, Shin HJ, Ziwei L, Patnaik HH, Hwang HJ, Park SY, Kang SW, Ko JH, Lee JS, Park HS, Jo YH, Han YS, Lee YS. Transcriptome sequencing of the endangered land snail Karaftohelix adamsi from the Island Ulleung: De novo assembly, annotation, valuation of fitness genes and SSR markers. Genes Genomics 2024; 46:851-870. [PMID: 38809491 DOI: 10.1007/s13258-024-01511-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Accepted: 03/08/2024] [Indexed: 05/30/2024]
Abstract
BACKGROUND The Bradybaenidae snail Karaftohelix adamsi is endemic to Korea, with the species tracked from Island Ulleung in North Gyeongsang Province of South Korea. K. adamsi has been classified under the Endangered Wildlife Class II species of Korea and poses a severe risk of extinction following habitat disturbances. With no available information at the DNA (genome) or mRNA (transcriptome) level for the species, conservation by utilizing informed molecular resources seems difficult. OBJECTIVE In this study, we used the Illumina short-read sequencing and Trinity de novo assembly to draft the reference transcriptome of K. adamsi. RESULTS After assembly, 13,753 unigenes were obtained of which 10,511 were annotated to public databases (a maximum of 10,165 unigenes found homologs in PANM DB). A total of 6,351, 3,535, 358, and 3,407 unigenes were ascribed to the functional categories under KOG, GO, KEGG, and IPS, respectively. The transcripts such as the HSP 70, aquaporin, TLR, and MAPK, among others, were screened as putative functional resources for adaptation. DNA transposons were found to be thickly populated in comparison to retrotransposons in the assembled unigenes. Further, 2,164 SSRs were screened with the promiscuous presence of dinucleotide repeats such as AC/GT and AG/CT. CONCLUSION The transcriptome-guided discovery of molecular resources in K. adamsi will not only serve as a basis for functional genomics studies but also provide sustainable tools to be utilized for the protection of the species in the wild. Moreover, the development of polymorphic SSRs is valuable for the identification of species from newer habitats and cross-species genotyping.
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Affiliation(s)
- Jie Eun Park
- Korea Native Animal Resources Utilization Convergence Research Institute (KNAR), Soonchunhyang University, Asan, Chungnam, 31538, South Korea
- Research Support Center for Bio-Bigdata Analysis and Utilization of Biological Resources, Soonchunhyang University, Chungnam, 31, Asan, South Korea
| | - Bharat Bhusan Patnaik
- Korea Native Animal Resources Utilization Convergence Research Institute (KNAR), Soonchunhyang University, Asan, Chungnam, 31538, South Korea
- Department of Biology, College of Natural Sciences, Soonchunhyang University, Asan, 31538, Chungnam, Korea
- PG Department of Biosciences and Biotechnology, Fakir Mohan University, Nuapadhi, Balasore, Odisha, 756089, India
| | - Min Kyu Sang
- Korea Native Animal Resources Utilization Convergence Research Institute (KNAR), Soonchunhyang University, Asan, Chungnam, 31538, South Korea
- Research Support Center for Bio-Bigdata Analysis and Utilization of Biological Resources, Soonchunhyang University, Chungnam, 31, Asan, South Korea
| | - Dae Kwon Song
- Korea Native Animal Resources Utilization Convergence Research Institute (KNAR), Soonchunhyang University, Asan, Chungnam, 31538, South Korea
- Research Support Center for Bio-Bigdata Analysis and Utilization of Biological Resources, Soonchunhyang University, Chungnam, 31, Asan, South Korea
| | - Jun Yang Jeong
- Korea Native Animal Resources Utilization Convergence Research Institute (KNAR), Soonchunhyang University, Asan, Chungnam, 31538, South Korea
- Department of Biology, College of Natural Sciences, Soonchunhyang University, Asan, 31538, Chungnam, Korea
| | - Chan Eui Hong
- Korea Native Animal Resources Utilization Convergence Research Institute (KNAR), Soonchunhyang University, Asan, Chungnam, 31538, South Korea
- Department of Biology, College of Natural Sciences, Soonchunhyang University, Asan, 31538, Chungnam, Korea
| | - Yong Tae Kim
- Korea Native Animal Resources Utilization Convergence Research Institute (KNAR), Soonchunhyang University, Asan, Chungnam, 31538, South Korea
- Department of Biology, College of Natural Sciences, Soonchunhyang University, Asan, 31538, Chungnam, Korea
| | - Hyeon Jun Shin
- Korea Native Animal Resources Utilization Convergence Research Institute (KNAR), Soonchunhyang University, Asan, Chungnam, 31538, South Korea
- Department of Biology, College of Natural Sciences, Soonchunhyang University, Asan, 31538, Chungnam, Korea
| | - Liu Ziwei
- Korea Native Animal Resources Utilization Convergence Research Institute (KNAR), Soonchunhyang University, Asan, Chungnam, 31538, South Korea
- Department of Biology, College of Natural Sciences, Soonchunhyang University, Asan, 31538, Chungnam, Korea
| | - Hongray Howrelia Patnaik
- Korea Native Animal Resources Utilization Convergence Research Institute (KNAR), Soonchunhyang University, Asan, Chungnam, 31538, South Korea
- PG Department of Zoology, BJB Autonomous College, Bhubaneswar, Odisha, 751014, India
| | - Hee Ju Hwang
- Department of Biology, College of Natural Sciences, Soonchunhyang University, Asan, 31538, Chungnam, Korea
| | - So Young Park
- Biodiversity Research Team, Animal & Plant Research Department, Nakdonggang National Institute of Biological Resources, Sangju, Gyeongbuk, South Korea
| | - Se Won Kang
- Biological Resource Center (BRC), Korea Research Institute of Bioscience and Biotechnology (KRIBB), Jeongeup, Jeonbuk, South Korea
| | - Jung Ho Ko
- Police Science Institute, Korean National Police University, Asan, 31539, Chungnam, Korea
| | - Jun Sang Lee
- Korea Native Animal Resources Utilization Convergence Research Institute (KNAR), Soonchunhyang University, Asan, Chungnam, 31538, South Korea
| | - Hong Seog Park
- Research Institute, GnC BIO Co., LTD, 621-6 Banseok-Dong, Yuseong-Gu, Daejeon, 34069, Korea
| | - Yong Hun Jo
- Korea Native Animal Resources Utilization Convergence Research Institute (KNAR), Soonchunhyang University, Asan, Chungnam, 31538, South Korea
- Department of Biology, College of Natural Sciences, Soonchunhyang University, Asan, 31538, Chungnam, Korea
| | - Yeon Soo Han
- College of Agriculture and Life Science, Chonnam National University, 77 Yongbong-Ro, Buk-Gu, Gwangju, 61186, South Korea
| | - Yong Seok Lee
- Korea Native Animal Resources Utilization Convergence Research Institute (KNAR), Soonchunhyang University, Asan, Chungnam, 31538, South Korea.
- Research Support Center for Bio-Bigdata Analysis and Utilization of Biological Resources, Soonchunhyang University, Chungnam, 31, Asan, South Korea.
- Department of Biology, College of Natural Sciences, Soonchunhyang University, Asan, 31538, Chungnam, Korea.
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Cardoso JCR, Mc Shane JC, Li Z, Peng M, Power DM. Revisiting the evolution of Family B1 GPCRs and ligands: Insights from mollusca. Mol Cell Endocrinol 2024; 586:112192. [PMID: 38408601 DOI: 10.1016/j.mce.2024.112192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 02/19/2024] [Accepted: 02/20/2024] [Indexed: 02/28/2024]
Abstract
Family B1 G protein-coupled receptors (GPCRs) are one of the most well studied neuropeptide receptor families since they play a central role in many biological processes including endocrine, gastrointestinal, cardiovascular and reproduction in animals. The genes for these receptors emerged from a common ancestral gene in bilaterian genomes and evolved via gene/genome duplications and deletions in vertebrate and invertebrate genomes. Their existence and function have mostly been characterized in vertebrates and few studies exist in invertebrate species. Recently, an increased interest in molluscs, means a series of genomes have become available, and since they are less modified than insect and nematode genomes, they are ideal to explore the origin and evolution of neuropeptide gene families. This review provides an overview of Family B1 GPCRs and their peptide ligands and incorporates new data obtained from Mollusca genomes and taking a comparative approach challenges existing models on their origin and evolution.
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Affiliation(s)
- João C R Cardoso
- Comparative Endocrinology and Integrative Biology, Centre of Marine Sciences, Universidade do Algarve, Campus de Gambelas, 8005-139, Faro, Portugal.
| | - Jennifer C Mc Shane
- Comparative Endocrinology and Integrative Biology, Centre of Marine Sciences, Universidade do Algarve, Campus de Gambelas, 8005-139, Faro, Portugal
| | - Zhi Li
- Comparative Endocrinology and Integrative Biology, Centre of Marine Sciences, Universidade do Algarve, Campus de Gambelas, 8005-139, Faro, Portugal
| | - Maoxiao Peng
- Comparative Endocrinology and Integrative Biology, Centre of Marine Sciences, Universidade do Algarve, Campus de Gambelas, 8005-139, Faro, Portugal
| | - Deborah M Power
- Comparative Endocrinology and Integrative Biology, Centre of Marine Sciences, Universidade do Algarve, Campus de Gambelas, 8005-139, Faro, Portugal; International Research Center for Marine Biosciences, Ministry of Science and Technology, Shanghai Ocean University, Shanghai, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, China
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3
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Analysis of rhodopsin G protein-coupled receptor orthologs reveals semiochemical peptides for parasite (Schistosoma mansoni) and host (Biomphalaria glabrata) interplay. Sci Rep 2022; 12:8243. [PMID: 35581232 PMCID: PMC9114394 DOI: 10.1038/s41598-022-11996-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 04/25/2022] [Indexed: 11/20/2022] Open
Abstract
Schistosomiasis is a medically significant disease caused by helminth parasites of the genus Schistosoma. The schistosome life cycle requires chemically mediated interactions with an intermediate (aquatic snail) and definitive (human) host. Blocking parasite development within the snail stage requires improved understanding of the interactions between the snail host and the Schistosoma water-borne free-living form (miracidium). Innovations in snail genomics and aquatic chemical communication provide an ideal opportunity to explore snail-parasite coevolution at the molecular level. Rhodopsin G protein-coupled receptors (GPCRs) are of particular interest in studying how trematode parasites navigate towards their snail hosts. The potential role of GPCRs in parasites makes them candidate targets for new antihelminthics that disrupt the intermediate host life-cycle stages, thus preventing subsequent human infections. A genomic-bioinformatic approach was used to identify GPCR orthologs between the snail Biomphalaria glabrata and miracidia of its obligate parasite Schistosoma mansoni. We show that 8 S. mansoni rhodopsin GPCRs expressed within the miracidial stage share overall amino acid similarity with 8 different B. glabrata rhodopsin GPCRs, particularly within transmembrane domains, suggesting conserved structural features. These GPCRs include an orphan peptide receptor as well as several with strong sequence homologies with rhabdomeric opsin receptors, a serotonin receptor, a sulfakinin (SK) receptor, an allatostatin-A (buccalin) receptor and an FMRFamide receptor. Buccalin and FMRFa peptides were identified in water conditioned by B. glabrata, and we show synthetic buccalin and FMRFa can stimulate significant rates of change of direction and turn-back responses in S. mansoni miracidia. Ortholog GPCRs were identified in S. mansoni miracidia and B. glabrata. These GPCRs may detect similar ligands, including snail-derived odorants that could facilitate miracidial host finding. These results lay the foundation for future research elucidating the mechanisms by which GPCRs mediate host finding which can lead to the potential development of novel anti-schistosome interventions.
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Lee CA, Romanova EV, Southey BR, Gillette R, Sweedler JV. Comparative Analysis of Neuropeptides in Homologous Interneurons and Prohormone Annotation in Nudipleuran Sea Slugs. Front Physiol 2022; 12:809529. [PMID: 35002782 PMCID: PMC8735849 DOI: 10.3389/fphys.2021.809529] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Accepted: 12/02/2021] [Indexed: 02/06/2023] Open
Abstract
Despite substantial research on neuronal circuits in nudipleuran gastropods, few peptides have been implicated in nudipleuran behavior. In this study, we expanded the understanding of peptides in this clade, using three species with well-studied nervous systems, Hermissenda crassicornis, Melibe leonina, and Pleurobranchaea californica. For each species, we performed sequence homology analysis of de novo transcriptome predictions to identify homologs to 34 of 36 prohormones previously characterized in the gastropods Aplysia californica and Lymnaea stagnalis. We then used single-cell mass spectrometry to characterize peptide profiles in homologous feeding interneurons: the multifunctional ventral white cell (VWC) in P. californica and the small cardioactive peptide B large buccal (SLB) cells in H. crassicornis and M. leonina. The neurons produced overlapping, but not identical, peptide profiles. The H. crassicornis SLB cells expressed peptides from homologs to the FMRFamide (FMRFa), small cardioactive peptide (SCP), LFRFamide (LFRFa), and feeding circuit activating peptides prohormones. The M. leonina SLB cells expressed peptides from homologs to the FMRFa, SCP, LFRFa, and MIP-related peptides prohormones. The VWC, previously shown to express peptides from the FMRFa and QNFLa (a homolog of A. californica pedal peptide 4) prohormones, was shown to also contain SCP peptides. Thus, each neuron expressed peptides from the FMRFa and SCP families, the H. crassicornis and M. leonina SLB cells expressed peptides from the LFRFa family, and each neuron contained peptides from a prohormone not found in the others. These data suggest each neuron performs complex co-transmission, which potentially facilitates a multifunctional role in feeding. Additionally, the unique feeding characteristics of each species may relate, in part, to differences in the peptide profiles of these neurons. These data add chemical insight to enhance our understanding of the neuronal basis of behavior in nudipleurans and other gastropods.
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Affiliation(s)
- Colin A Lee
- Neuroscience Program, University of Illinois Urbana-Champaign, Urbana, IL, United States
| | - Elena V Romanova
- Neuroscience Program, University of Illinois Urbana-Champaign, Urbana, IL, United States.,Department of Chemistry, University of Illinois Urbana-Champaign, Urbana, IL, United States
| | - Bruce R Southey
- Department of Animal Sciences, University of Illinois Urbana-Champaign, Urbana, IL, United States
| | - Rhanor Gillette
- Neuroscience Program, University of Illinois Urbana-Champaign, Urbana, IL, United States.,Department of Molecular and Integrative Physiology, University of Illinois Urbana-Champaign, Urbana, IL, United States
| | - Jonathan V Sweedler
- Neuroscience Program, University of Illinois Urbana-Champaign, Urbana, IL, United States.,Department of Chemistry, University of Illinois Urbana-Champaign, Urbana, IL, United States
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5
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Transcriptome Profiling of the Pacific Oyster Crassostrea gigas Visceral Ganglia over a Reproduction Cycle Identifies Novel Regulatory Peptides. Mar Drugs 2021; 19:md19080452. [PMID: 34436291 PMCID: PMC8398477 DOI: 10.3390/md19080452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 07/29/2021] [Accepted: 07/30/2021] [Indexed: 11/18/2022] Open
Abstract
The neuropeptides involved in the regulation of reproduction in the Pacific oyster (Crassostrea gigas) are quite diverse. To investigate this diversity, a transcriptomic survey of the visceral ganglia (VG) was carried out over an annual reproductive cycle. RNA-seq data from 26 samples corresponding to VG at different stages of reproduction were de novo assembled to generate a specific reference transcriptome of the oyster nervous system and used to identify differentially expressed transcripts. Transcriptome mining led to the identification of novel neuropeptide precursors (NPPs) related to the bilaterian Eclosion Hormone (EH), crustacean female sex hormone/Interleukin 17, Nesfatin, neuroparsin/IGFBP, prokineticins, and urotensin I; to the protostome GNQQN, pleurin, prohormones 3 and 4, prothoracotropic hormones (PTTH), and QSamide/PXXXamide; to the lophotrochozoan CCWamide, CLCCY, HFAamide, and LXRX; and to the mollusk-specific NPPs CCCGS, clionin, FYFY, GNamide, GRWRN, GSWN, GWE, IWMPxxGYxx, LXRYamide, RTLFamide, SLRFamide, and WGAGamide. Among the complete repertoire of NPPs, no sex-biased expression was observed. However, 25 NPPs displayed reproduction stage-specific expression, supporting their involvement in the control of gametogenesis or associated metabolisms.
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6
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Thiel D, Guerra LAY, Franz-Wachtel M, Hejnol A, Jékely G. Nemertean, brachiopod and phoronid neuropeptidomics reveals ancestral spiralian signalling systems. Mol Biol Evol 2021; 38:4847-4866. [PMID: 34272863 PMCID: PMC8557429 DOI: 10.1093/molbev/msab211] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Neuropeptides are diverse signaling molecules in animals commonly acting through G-protein coupled receptors (GPCRs). Neuropeptides and their receptors underwent extensive diversification in bilaterians and the relationships of many peptide–receptor systems have been clarified. However, we lack a detailed picture of neuropeptide evolution in lophotrochozoans as in-depth studies only exist for mollusks and annelids. Here, we analyze peptidergic systems in Nemertea, Brachiopoda, and Phoronida. We screened transcriptomes from 13 nemertean, 6 brachiopod, and 4 phoronid species for proneuropeptides and neuropeptide GPCRs. With mass spectrometry from the nemertean Lineus longissimus, we validated several predicted peptides and identified novel ones. Molecular phylogeny combined with peptide-sequence and gene-structure comparisons allowed us to comprehensively map spiralian neuropeptide evolution. We found most mollusk and annelid peptidergic systems also in nemerteans, brachiopods, and phoronids. We uncovered previously hidden relationships including the orthologies of spiralian CCWamides to arthropod agatoxin-like peptides and of mollusk APGWamides to RGWamides from annelids, with ortholog systems in nemerteans, brachiopods, and phoronids. We found that pleurin neuropeptides previously only found in mollusks are also present in nemerteans and brachiopods. We also identified cases of gene family duplications and losses. These include a protostome-specific expansion of RFamide/Wamide signaling, a spiralian expansion of GnRH-related peptides, and duplications of vasopressin/oxytocin before the divergence of brachiopods, phoronids, and nemerteans. This analysis expands our knowledge of peptidergic signaling in spiralians and other protostomes. Our annotated data set of nearly 1,300 proneuropeptide sequences and 600 GPCRs presents a useful resource for further studies of neuropeptide signaling.
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Affiliation(s)
- Daniel Thiel
- Living Systems Institute, University of Exeter, Stocker Road, Exeter, UK.,Sars International Centre for Marine Molecular Biology, University of Bergen, Bergen, Norway
| | | | - Mirita Franz-Wachtel
- Eberhard Karls Universität Tübingen, Interfaculty Institute for Cell Biology, Tübingen, Germany
| | - Andreas Hejnol
- Department of Biological Sciences, University of Bergen, Bergen, 5006, Norway
| | - Gáspár Jékely
- Living Systems Institute, University of Exeter, Stocker Road, Exeter, UK
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7
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Klein AH, Motti CA, Hillberg AK, Ventura T, Thomas-Hall P, Armstrong T, Barker T, Whatmore P, Cummins SF. Development and Interrogation of a Transcriptomic Resource for the Giant Triton Snail (Charonia tritonis). MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2021; 23:501-515. [PMID: 34191212 PMCID: PMC8270824 DOI: 10.1007/s10126-021-10042-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Accepted: 06/03/2021] [Indexed: 06/01/2023]
Abstract
Gastropod molluscs are among the most abundant species that inhabit coral reef ecosystems. Many are specialist predators, along with the giant triton snail Charonia tritonis (Linnaeus, 1758) whose diet consists of Acanthaster planci (crown-of-thorns starfish), a corallivore known to consume enormous quantities of reef-building coral. C. tritonis are considered vulnerable due to overexploitation, and a decline in their populations is believed to have contributed to recurring A. planci population outbreaks. Aquaculture is considered one approach that could help restore natural populations of C. tritonis and mitigate coral loss; however, numerous questions remain unanswered regarding their life cycle, including the molecular factors that regulate their reproduction and development. In this study, we have established a reference C. tritonis transcriptome derived from developmental stages (embryo and veliger) and adult tissues. This was used to identify genes associated with cell signalling, such as neuropeptides and G protein-coupled receptors (GPCRs), involved in endocrine and olfactory signalling. A comparison of developmental stages showed that several neuropeptide precursors are exclusively expressed in post-hatch veligers and functional analysis found that FFamide stimulated a significant (20.3%) increase in larval heart rate. GPCRs unique to veligers, and a diversity of rhodopsin-like GPCRs located within adult cephalic tentacles, all represent candidate olfactory receptors. In addition, the cytochrome P450 superfamily, which participates in the biosynthesis and degradation of steroid hormones and lipids, was also found to be expanded with at least 91 genes annotated, mostly in gill tissue. These findings further progress our understanding of C. tritonis with possible application in developing aquaculture methods.
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Affiliation(s)
- A H Klein
- Genecology Research Centre, University of the Sunshine Coast, Maroochydore DC, QLD, 4558, Australia
- School of Science, Technology and Engineering, University of the Sunshine Coast, Maroochydore DC, QLD, 4558, Australia
| | - C A Motti
- Australian Institute of Marine Science (AIMS), Cape Ferguson, Townsville, QLD, 4810, Australia
| | - A K Hillberg
- Genecology Research Centre, University of the Sunshine Coast, Maroochydore DC, QLD, 4558, Australia
- School of Science, Technology and Engineering, University of the Sunshine Coast, Maroochydore DC, QLD, 4558, Australia
| | - T Ventura
- Genecology Research Centre, University of the Sunshine Coast, Maroochydore DC, QLD, 4558, Australia
- School of Science, Technology and Engineering, University of the Sunshine Coast, Maroochydore DC, QLD, 4558, Australia
| | - P Thomas-Hall
- Australian Institute of Marine Science (AIMS), Cape Ferguson, Townsville, QLD, 4810, Australia
| | - T Armstrong
- Australian Institute of Marine Science (AIMS), Cape Ferguson, Townsville, QLD, 4810, Australia
| | - T Barker
- Australian Institute of Marine Science (AIMS), Cape Ferguson, Townsville, QLD, 4810, Australia
| | - P Whatmore
- School of Science, Technology and Engineering, University of the Sunshine Coast, Maroochydore DC, QLD, 4558, Australia
- eResearch Office, Queensland University of Technology, Brisbane, QLD, 4000, Australia
| | - S F Cummins
- Genecology Research Centre, University of the Sunshine Coast, Maroochydore DC, QLD, 4558, Australia.
- School of Science, Technology and Engineering, University of the Sunshine Coast, Maroochydore DC, QLD, 4558, Australia.
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Identification, behavior analysis, and control of snail pest in agricultural fields using signal analysis and nanoparticles. APPLIED NANOSCIENCE 2021. [DOI: 10.1007/s13204-021-01830-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Li Z, Cardoso JCR, Peng M, Inácio JPS, Power DM. Evolution and Potential Function in Molluscs of Neuropeptide and Receptor Homologues of the Insect Allatostatins. Front Endocrinol (Lausanne) 2021; 12:725022. [PMID: 34659116 PMCID: PMC8514136 DOI: 10.3389/fendo.2021.725022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Accepted: 08/20/2021] [Indexed: 12/03/2022] Open
Abstract
The allatostatins (ASTs), AST-A, AST-B and AST-C, have mainly been investigated in insects. They are a large group of small pleotropic alloregulatory neuropeptides that are unrelated in sequence and activate receptors of the rhodopsin G-protein coupled receptor family (GPCRs). The characteristics and functions of the homologue systems in the molluscs (Buccalin, MIP and AST-C-like), the second most diverse group of protostomes after the arthropods, and of high interest for evolutionary studies due to their less rearranged genomes remains to be explored. In the present study their evolution is deciphered in molluscs and putative functions assigned in bivalves through meta-analysis of transcriptomes and experiments. Homologues of the three arthropod AST-type peptide precursors were identified in molluscs and produce a larger number of mature peptides than in insects. The number of putative receptors were also distinct across mollusc species due to lineage and species-specific duplications. Our evolutionary analysis of the receptors identified for the first time in a mollusc, the cephalopod, GALR-like genes, which challenges the accepted paradigm that AST-AR/buccalin-Rs are the orthologues of vertebrate GALRs in protostomes. Tissue transcriptomes revealed the peptides, and their putative receptors have a widespread distribution in bivalves and in the bivalve Mytilus galloprovincialis, elements of the three peptide-receptor systems are highly abundant in the mantle an innate immune barrier tissue. Exposure of M. galloprovincialis to lipopolysaccharide or a marine pathogenic bacterium, Vibrio harveyi, provoked significant modifications in the expression of genes of the peptide precursor and receptors of the AST-C-like system in the mantle suggesting involvement in the immune response. Overall, our study reveals that homologues of the arthropod AST-systems in molluscs are potentially more complex due to the greater number of putative mature peptides and receptor genes. In bivalves they have a broad and varying tissue distribution and abundance, and the elements of the AST-C-like family may have a putative function in the immune response.
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Affiliation(s)
- Zhi Li
- Comparative Endocrinology and Integrative Biology, Centre of Marine Sciences, Universidade do Algarve, Faro, Portugal
| | - João C. R. Cardoso
- Comparative Endocrinology and Integrative Biology, Centre of Marine Sciences, Universidade do Algarve, Faro, Portugal
- *Correspondence: Deborah M. Power, ; João C. R. Cardoso,
| | - Maoxiao Peng
- Comparative Endocrinology and Integrative Biology, Centre of Marine Sciences, Universidade do Algarve, Faro, Portugal
| | - João P. S. Inácio
- Comparative Endocrinology and Integrative Biology, Centre of Marine Sciences, Universidade do Algarve, Faro, Portugal
| | - Deborah M. Power
- Comparative Endocrinology and Integrative Biology, Centre of Marine Sciences, Universidade do Algarve, Faro, Portugal
- International Research Center for Marine Biosciences, Ministry of Science and Technology, Shanghai Ocean University, Shanghai, China
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, China
- *Correspondence: Deborah M. Power, ; João C. R. Cardoso,
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Navarro JM, Détrée C, Morley SA, Cárdenas L, Ortiz A, Vargas-Chacoff L, Paschke K, Gallardo P, Guillemin ML, Gonzalez-Wevar C. Evaluating the effects of ocean warming and freshening on the physiological energetics and transcriptomic response of the Antarctic limpet Nacella concinna. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 748:142448. [PMID: 33113697 DOI: 10.1016/j.scitotenv.2020.142448] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 08/20/2020] [Accepted: 09/13/2020] [Indexed: 06/11/2023]
Abstract
In the Southern Ocean, warming and freshening are expected to be prominent signals of climate change and the reduced ability of Antarctic marine organisms to cope with changing environmental conditions could challenge their future survival. The Antarctic limpet Nacella concinna is a macroinvertebrate of rocky ecosystems, which occurs in high densities in the shallow subtidal zone. Subtidal individuals were exposed to a combination of temperatures (1, 4, 8, 11, 14 °C) and salinities (20 and 30 psu) for a 60-day period. A drastic increment in mortality was observed with seawater warming, showing that N. concinna is highly stenothermal, with limited ability to survive at temperatures warmer than 4 °C, although there was some degree of acclimation at 4 °C and ambient salinity (30 psu). This study confirmed the stenohaline characteristic of this species, with mortality reaching 50% and lower scope for growth at low salinity (20 psu) even at the control temperature (1 °C). At the sub-cellular level, limpets' low tolerance to out-of range salinity is illustrated by the activation of cell remodelling processes whereas the down-regulation of chaperones proteins and plasma membrane ATPase suggest that under the combination of warming and freshening N. concinna experiences a severe level of stress and devote much of its energy to somatic maintenance and survival. The drastic effect observed can be explained by its subtidal origin, an environment with more stable conditions. The surviving individuals at 1 °C and lowered salinity (20 psu) were either more tolerant or showing signs of acclimation after 60 days, but the combination of warming and freshening have a greater combined stress. Projections of climate change for end of the century for this part of the Antarctic can, therefore, result in a significant diminution of the subtidal population of N. concinna, affecting ecological interactions and diversity of the food web.
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Affiliation(s)
- Jorge M Navarro
- Instituto de Ciencias Marinas y Limnológicas, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile; Centro FONDAP de Investigación de Ecosistemas Marinos de Altas Latitudes (IDEAL), Valdivia, Chile.
| | - Camille Détrée
- Instituto de Ciencias Marinas y Limnológicas, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile; Centro FONDAP de Investigación de Ecosistemas Marinos de Altas Latitudes (IDEAL), Valdivia, Chile
| | - Simon A Morley
- British Antarctic Survey, Natural Environment Research Council, Cambridge, United Kingdom
| | - Leyla Cárdenas
- Centro FONDAP de Investigación de Ecosistemas Marinos de Altas Latitudes (IDEAL), Valdivia, Chile; Instituto de Ciencias Ambientales y Evolutivas, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile
| | - Alejandro Ortiz
- Instituto de Ciencias Marinas y Limnológicas, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile; Centro FONDAP de Investigación de Ecosistemas Marinos de Altas Latitudes (IDEAL), Valdivia, Chile
| | - Luis Vargas-Chacoff
- Instituto de Ciencias Marinas y Limnológicas, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile; Centro FONDAP de Investigación de Ecosistemas Marinos de Altas Latitudes (IDEAL), Valdivia, Chile
| | - Kurt Paschke
- Centro FONDAP de Investigación de Ecosistemas Marinos de Altas Latitudes (IDEAL), Valdivia, Chile; Instituto de Acuicultura, Universidad Austral de Chile, Puerto Montt, Chile
| | - Pablo Gallardo
- Centro de Cultivos Marinos Bahía Laredo, Departamento de Ciencias Agropecuarias y Acuícolas, Universidad de Magallanes, Punta Arenas, Chile
| | - Marie-Laure Guillemin
- Centro FONDAP de Investigación de Ecosistemas Marinos de Altas Latitudes (IDEAL), Valdivia, Chile; Instituto de Ciencias Ambientales y Evolutivas, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile; CNRS, Sorbonne Université, UMI 3614 Evolutionary Biology and Ecology of Algae, Pontificia Universidad Católica de Chile, Universidad Austral de Chile, Roscoff cedex, France
| | - Claudio Gonzalez-Wevar
- Instituto de Ciencias Marinas y Limnológicas, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile; Centro FONDAP de Investigación de Ecosistemas Marinos de Altas Latitudes (IDEAL), Valdivia, Chile
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11
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Klein AH, Ballard KR, Storey KB, Motti CA, Zhao M, Cummins SF. Multi-omics investigations within the Phylum Mollusca, Class Gastropoda: from ecological application to breakthrough phylogenomic studies. Brief Funct Genomics 2020; 18:377-394. [PMID: 31609407 DOI: 10.1093/bfgp/elz017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2019] [Revised: 07/06/2019] [Accepted: 07/15/2019] [Indexed: 12/22/2022] Open
Abstract
Gastropods are the largest and most diverse class of mollusc and include species that are well studied within the areas of taxonomy, aquaculture, biomineralization, ecology, microbiome and health. Gastropod research has been expanding since the mid-2000s, largely due to large-scale data integration from next-generation sequencing and mass spectrometry in which transcripts, proteins and metabolites can be readily explored systematically. Correspondingly, the huge data added a great deal of complexity for data organization, visualization and interpretation. Here, we reviewed the recent advances involving gastropod omics ('gastropodomics') research from hundreds of publications and online genomics databases. By summarizing the current publicly available data, we present an insight for the design of useful data integrating tools and strategies for comparative omics studies in the future. Additionally, we discuss the future of omics applications in aquaculture, natural pharmaceutical biodiscovery and pest management, as well as to monitor the impact of environmental stressors.
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Affiliation(s)
- Anne H Klein
- Genecology Research Centre, University of the Sunshine Coast, Maroochydore DC, Queensland 4558, Australia
| | - Kaylene R Ballard
- Genecology Research Centre, University of the Sunshine Coast, Maroochydore DC, Queensland 4558, Australia
| | - Kenneth B Storey
- Institute of Biochemistry & Department of Biology, Carleton University, Ottawa, ON, Canada K1S 5B6
| | - Cherie A Motti
- Australian Institute of Marine Science (AIMS), Cape Ferguson, Townsville Queensland 4810, Australia
| | - Min Zhao
- Genecology Research Centre, University of the Sunshine Coast, Maroochydore DC, Queensland 4558, Australia
| | - Scott F Cummins
- Genecology Research Centre, University of the Sunshine Coast, Maroochydore DC, Queensland 4558, Australia
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12
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Kosicka E, Lesicki A, Pieńkowska JR. Molluscan aquaporins: an overview, with some notes on their role in the entry into aestivation in gastropods. MOLLUSCAN RESEARCH 2020. [DOI: 10.1080/13235818.2020.1716442] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Ewa Kosicka
- Department of Cell Biology, Institute of Experimental Biology, Faculty of Biology, Adam Mickiewicz University, Poznań, Poland
| | - Andrzej Lesicki
- Department of Cell Biology, Institute of Experimental Biology, Faculty of Biology, Adam Mickiewicz University, Poznań, Poland
| | - Joanna R. Pieńkowska
- Department of Cell Biology, Institute of Experimental Biology, Faculty of Biology, Adam Mickiewicz University, Poznań, Poland
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13
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Sharker MR, Sukhan ZP, Kim SC, Rha SJ, Kho KH. In silico prediction of neuropeptides from the neural ganglia of Pacific abalone Haliotis discus hannai (Mollusca: Gastropoda). THE EUROPEAN ZOOLOGICAL JOURNAL 2020. [DOI: 10.1080/24750263.2019.1708485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
Affiliation(s)
- M. R. Sharker
- Department of Fisheries Science, College of Fisheries and Ocean Sciences, Chonnam National University, Yeosu, Republic of Korea
| | - Z. P. Sukhan
- Department of Fisheries Science, College of Fisheries and Ocean Sciences, Chonnam National University, Yeosu, Republic of Korea
| | - S. C. Kim
- Department of Fisheries Science, College of Fisheries and Ocean Sciences, Chonnam National University, Yeosu, Republic of Korea
| | - S.-J. Rha
- Department of Fisheries Science, College of Fisheries and Ocean Sciences, Chonnam National University, Yeosu, Republic of Korea
| | - K. H. Kho
- Department of Fisheries Science, College of Fisheries and Ocean Sciences, Chonnam National University, Yeosu, Republic of Korea
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Thiel D, Bauknecht P, Jékely G, Hejnol A. A nemertean excitatory peptide/CCHamide regulates ciliary swimming in the larvae of Lineus longissimus. Front Zool 2019; 16:28. [PMID: 31333754 PMCID: PMC6617912 DOI: 10.1186/s12983-019-0326-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Accepted: 06/17/2019] [Indexed: 12/13/2022] Open
Abstract
Background The trochozoan excitatory peptide (EP) and its ortholog, the arthropod CCHamide, are neuropeptides that are only investigated in very few animal species. Previous studies on different trochozoan species focused on their physiological effect in adult specimens, demonstrating a myo-excitatory effect, often on tissues of the digestive system. The function of EP in the planktonic larvae of trochozoans has not yet been studied. Results We surveyed transcriptomes from species of various spiralian (Orthonectida, Nemertea, Brachiopoda, Entoprocta, Rotifera) and ecdysozoan taxa (Tardigrada, Onychophora, Priapulida, Loricifera, Nematomorpha) to investigate the evolution of EPs/CCHamides in protostomes. We found that the EPs of several pilidiophoran nemerteans show a characteristic difference in their C-terminus. Deorphanization of a pilidiophoran EP receptor showed, that the two splice variants of the nemertean Lineus longissimus EP activate a single receptor. We investigated the expression of EP in L. longissimus larvae and juveniles with customized antibodies and found that EP positive nerves in larvae project from the apical organ to the ciliary band and that EP is expressed more broadly in juveniles in the neuropil and the prominent longitudinal nerve cords. While exposing juvenile L. longissimus specimens to synthetic excitatory peptides did not show any obvious effect, exposure of larvae to either of the two EPs increased the beat frequency of their locomotory cilia and shifted their vertical swimming distribution in a water column upwards. Conclusion Our results show that EP/CCHamide peptides are broadly conserved in protostomes. We show that the EP increases the ciliary beat frequency of L. longissimus larvae, which shifts their vertical distribution in a water column upwards. Endogenous EP may be released at the ciliary band from the projections of apical organ EP positive neurons to regulate ciliary beating. This locomotory function of EP in L. longissimus larvae stands in contrast to the repeated association of EP/CCHamides with its myo-excitatory effect in adult trochozoans and the general association with the digestive system in many protostomes. Electronic supplementary material The online version of this article (10.1186/s12983-019-0326-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Daniel Thiel
- 1Sars International Centre for Marine Molecular Biology, University of Bergen, Thormøhlensgate 55, 5006 Bergen, Norway
| | - Philipp Bauknecht
- 2Max Planck Institute for Developmental Biology, Spemannstraße 35, 72076 Tübingen, Germany
| | - Gáspár Jékely
- 2Max Planck Institute for Developmental Biology, Spemannstraße 35, 72076 Tübingen, Germany.,3Living Systems Institute, University of Exeter, Stocker Road, Exeter, EX4 4QD UK
| | - Andreas Hejnol
- 1Sars International Centre for Marine Molecular Biology, University of Bergen, Thormøhlensgate 55, 5006 Bergen, Norway
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Wang SL, Wang WW, Ma Q, Shen ZF, Zhang MQ, Zhou NM, Zhang CX. Elevenin signaling modulates body color through the tyrosine-mediated cuticle melanism pathway. FASEB J 2019; 33:9731-9741. [PMID: 31162939 DOI: 10.1096/fj.201802786rr] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Elevenin is a newly discovered novel neuropeptide. Knockdown of either elevenin or orphan receptor NlA42 transcript expression by RNA interference caused severe cuticle melanization in the brown planthopper (BPH). Injection of a synthetic elevenin peptide not only rescued the body color phenotype in dselevenin-pretreated individuals but also suppressed melanization of black insects grown in natural conditions. Real-time quantitative PCR results revealed that elevenin expression levels were highest in the brain and salivary gland. Immunohistochemistry analysis confirmed that a precursor peptide of elevenin was generated in the salivary gland, suggesting that the salivary gland might be an important neurosecretory tissue in addition to the brain in BPH. Furthermore, double-strand RNA-mediated silencing of elevenin and NlA42 resulted in down-regulation of arylalkylamine-N-acetyltransferase and up-regulation of tyrosine hydroxylase, whereas elevenin peptide injection resulted in up-regulation of N-β-alanyldopamine synthase and aspartate 1-decarboxylase, indicating a complex regulation network for cuticle pigmentation. In addition, functional characterization demonstrated that NlA42 is a cognate receptor for elevenin, and couples to Gq and Gs proteins, triggering both PLC/Ca2+/PKC and AC/cAMP/PKA signaling pathways in response to elevenin treatment. These findings suggest that the elevenin signaling functions control BPH body color through the tyrosine-mediated cuticle melanism pathway.-Wang, S.-L., Wang, W.-W., Ma, Q., Shen, Z.-F., Zhang, M.-Q., Zhou, N.-M., Zhang, C.-X. Elevenin signaling modulates body color through the tyrosine-mediated cuticle melanism pathway.
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Affiliation(s)
- Si-Liang Wang
- State Key Laboratory of Rice Biology and Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insect Pests, Institute of Insect Science, Zhejiang University, Hangzhou, China
| | - Wei-Wei Wang
- Institute of Biochemistry, Zhejiang University, Hangzhou, China
| | - Qiang Ma
- Institute of Biochemistry, Zhejiang University, Hangzhou, China
| | - Zhang-Fei Shen
- Institute of Biochemistry, Zhejiang University, Hangzhou, China
| | - Meng-Qiu Zhang
- State Key Laboratory of Rice Biology and Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insect Pests, Institute of Insect Science, Zhejiang University, Hangzhou, China
| | - Nai-Ming Zhou
- Institute of Biochemistry, Zhejiang University, Hangzhou, China
| | - Chuan-Xi Zhang
- State Key Laboratory of Rice Biology and Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insect Pests, Institute of Insect Science, Zhejiang University, Hangzhou, China
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16
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Kim MA, Markkandan K, Han NY, Park JM, Lee JS, Lee H, Sohn YC. Neural Ganglia Transcriptome and Peptidome Associated with Sexual Maturation in Female Pacific Abalone ( Haliotis discus hannai). Genes (Basel) 2019; 10:genes10040268. [PMID: 30987054 PMCID: PMC6523705 DOI: 10.3390/genes10040268] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2018] [Revised: 03/13/2019] [Accepted: 03/29/2019] [Indexed: 12/14/2022] Open
Abstract
Genetic information of reproduction and growth is essential for sustainable molluscan fisheries and aquaculture management. However, there is limited knowledge regarding the reproductive activity of the commercially important Pacific abalone Haliotisdiscushannai. We performed de novo transcriptome sequencing of the ganglia in sexually immature and mature female Pacific abalone to better understand the sexual maturation process and the underlying molecular mechanisms. Of the ~305 million high-quality clean reads, 76,684 transcripts were de novo-assembled with an average length of 741 bp, 28.54% of which were annotated and classified according to Gene Ontology terms. There were 256 differentially expressed genes between the immature and mature abalone. Tandem mass spectrometry analysis, as compared to the predicted-peptide database of abalone ganglia transcriptome unigenes, identified 42 neuropeptide precursors, including 29 validated by peptidomic analyses. Label-free quantification revealed differential occurrences of 18 neuropeptide families between immature and mature abalone, including achatin, FMRFamide, crustacean cardioactive peptide, and pedal peptide A and B that were significantly more frequent at the mature stage. These results represent the first significant contribution to both maturation-related transcriptomic and peptidomic resources of the Pacific abalone ganglia and provide insight into the roles of various neuropeptides in reproductive regulation in marine gastropods.
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Affiliation(s)
- Mi Ae Kim
- Department of Marine Molecular Bioscience, Gangneung-Wonju National University, Gangneung 25457, Korea.
- The East Coast Research Institute of Life Science, Gangneung-Wonju National University, Gangneung 25457, Korea.
| | | | - Na-Young Han
- College of Pharmacy, Gachon University, Incheon 21936, Korea.
| | - Jong-Moon Park
- College of Pharmacy, Gachon University, Incheon 21936, Korea.
| | - Jung Sick Lee
- Department of Aqualife Medicine, Chonnam National University, Yeosu 59626, Korea.
| | - Hookeun Lee
- College of Pharmacy, Gachon University, Incheon 21936, Korea.
| | - Young Chang Sohn
- Department of Marine Molecular Bioscience, Gangneung-Wonju National University, Gangneung 25457, Korea.
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De Oliveira AL, Calcino A, Wanninger A. Extensive conservation of the proneuropeptide and peptide prohormone complement in mollusks. Sci Rep 2019; 9:4846. [PMID: 30890731 PMCID: PMC6425005 DOI: 10.1038/s41598-019-40949-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Accepted: 02/25/2019] [Indexed: 12/27/2022] Open
Abstract
As one of the most diverse groups of invertebrate animals, mollusks represent powerful models for neurobiological and developmental studies. Neuropeptides and peptide hormones are a heterogeneous class of signalling molecules involved in chemical communication between neurons and in neuroendocrine regulation. Here we present a fine-grained view of the molluscan neuropeptide and peptide hormone toolkit. Our results expand the distribution of several peptide families (e.g., prokineticin, insulin-related peptides, prohormone-4, LFRFamide) within Lophotrochozoa and provide evidence for an early origin of others (e.g., GNXQN/prohormone-2, neuroparsin). We identified a new peptide family broadly distributed among conchiferan mollusks, the PXRX family. We found the Wnt antagonist dickkopf1/2/4 ortholog in lophotrochozoans and nematodes and reveal that the egg-laying hormone family is a DH44 homolog restricted to gastropods. Our data demonstrate that numerous peptides evolved much earlier than previously assumed and that key signalling elements are extensively conserved among extant mollusks.
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Affiliation(s)
- A L De Oliveira
- Department of Integrative Zoology, Faculty of Life Sciences, University of Vienna, Althanstraße 14, Vienna, 1090, Austria
| | - A Calcino
- Department of Integrative Zoology, Faculty of Life Sciences, University of Vienna, Althanstraße 14, Vienna, 1090, Austria
| | - A Wanninger
- Department of Integrative Zoology, Faculty of Life Sciences, University of Vienna, Althanstraße 14, Vienna, 1090, Austria.
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18
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Schwartz J, Réalis-Doyelle E, Dubos MP, Lefranc B, Leprince J, Favrel P. Characterization of an evolutionarily conserved calcitonin signaling system in a lophotrochozoan, the Pacific oyster (Crassostrea gigas). J Exp Biol 2019; 222:jeb.201319. [DOI: 10.1242/jeb.201319] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Accepted: 06/14/2019] [Indexed: 12/19/2022]
Abstract
In Protostoma, the diuretic hormone 31 (DH31) signaling system was long considered as the orthologue of the chordate calcitonin (CT) signaling system. Using the Pacific oyster (Crassostrea gigas) transcriptomic database GigaTON (http://ngspipelines-sigenae.toulouse.inra.fr/), we characterized seven G-protein-coupled receptors (GPCRs) named Cragi-CTR1/7 and phylogenetically related to chordate CT receptors (CTRs) and to protostome DH31 receptors. Two CT Precursors (Cragi-CTP1 and Cragi-CTP2) containing two CT-type peptides and encoded by two distinct genes with a similar organization were also characterized. These oyster neuropeptides (Cragi-CT1/2) exhibit the two N-terminal paired cysteine residues and except CTP2 derived peptide (Cragi-CTP2dp) the C-terminal proline-amide motif typical of deuterostome CT-type peptides. All mature Cragi-CTs but Cragi-CTP2dp were detected in visceral ganglion (VG) extracts using mass spectrometry. Cell-based assays revealed that the formerly characterized oyster receptors Cg-CTR and Cragi-CTR2 were specifically activated by Cragi-CT1b and Cragi-CT2, respectively. This activation does not require the co-expression of receptor activity-modifying proteins (RAMPs). Thus, the oyster CT signaling appears functionally more closely related to the vertebrate CT/CTR signaling than to the (Calcitonin Gene Related Peptide) CGRP/CLR signaling. Gene expression profiles in different adult tissues and in oysters acclimated to brackish water suggest the potential implication of both Cg-CT-R/Cragi-CT1b and Cragi-CTR2/Cragi-CT2 in water and ionic regulations, though with apparently opposite effects. The present study represents the first comprehensive characterization of a functional CT-type signaling system in a protostome and provides evidence for its evolutionarily ancient origin and its early role in osmotic homeostasis.
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Affiliation(s)
- Julie Schwartz
- Normandie Université, UNICAEN, Sorbonne Universités, MNHN, UPMC, UA, CNRS 7208, IRD 207, Biologie des Organismes et Ecosystèmes Aquatiques (BOREA), CS14032, 14032 CAEN, Cedex 5, France
| | - Emilie Réalis-Doyelle
- Normandie Université, UNICAEN, Sorbonne Universités, MNHN, UPMC, UA, CNRS 7208, IRD 207, Biologie des Organismes et Ecosystèmes Aquatiques (BOREA), CS14032, 14032 CAEN, Cedex 5, France
| | - Marie-Pierre Dubos
- Normandie Université, UNICAEN, Sorbonne Universités, MNHN, UPMC, UA, CNRS 7208, IRD 207, Biologie des Organismes et Ecosystèmes Aquatiques (BOREA), CS14032, 14032 CAEN, Cedex 5, France
| | - Benjamin Lefranc
- Normandie Université, UNIROUEN, INSERM, U1239, Laboratoire Différenciation et Communication Neuronale et Neuroendocrine, Institut de Recherche et d'Innovation Biomédicale de Normandie, F-76000 Rouen, France
| | - Jérôme Leprince
- Normandie Université, UNIROUEN, INSERM, U1239, Laboratoire Différenciation et Communication Neuronale et Neuroendocrine, Institut de Recherche et d'Innovation Biomédicale de Normandie, F-76000 Rouen, France
| | - Pascal Favrel
- Normandie Université, UNICAEN, Sorbonne Universités, MNHN, UPMC, UA, CNRS 7208, IRD 207, Biologie des Organismes et Ecosystèmes Aquatiques (BOREA), CS14032, 14032 CAEN, Cedex 5, France
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Wang Q, Hong X, Chen H, Yuan L, Zha J. The neuropeptides of Asian freshwater clam (Corbicula fluminea) as new molecular biomarker basing on the responses of organophosphate chemicals exposure. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 160:52-59. [PMID: 29783112 DOI: 10.1016/j.ecoenv.2018.05.030] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Revised: 05/10/2018] [Accepted: 05/12/2018] [Indexed: 06/08/2023]
Abstract
In the present study, to discover new biomarker of Asian freshwater clam (Corbicula fluminea) to assess impact of environmental pollutions, cholecystokinin (CCK), conopressin, and Neuropeptide FF (FFamide) in C. fluminea were selected as potent biomarkers. Therefore, their full-length cDNAs were cloned and characterized to investigate the molecular characteristics and expression patterns of neuropeptides in C. fluminea. According to the sequence analysis, CCK, conopressin, and FFamide encoded proteins of 173, 152, and 90 amino acids, respectively. Moreover, the multiple sequence alignment revealed that the bioactive regions of these neuropeptides were well conserved among different invertebrates. In addition, under basal conditions, CCK, conopressin and FFamide mRNA were mainly expressed in the visceral mass, whereas the FFamide mRNA was rarely detected in the foot and mantle. Exposure to 20 and 200 μg/L Tris (2-butoxyethyl) phosphate (TBOEP) and tri-butyl-phosphate (TBP) exposure significantly up-regulated the expression of the CCK and FFamide mRNAs in the visceral mass (p < 0.05), whereas no significant changes in conopressin mRNA levels were observed in response to any treatment. Therefore, CCK and FFamide of C. fluminea neuropeptides are feasible new biomarkers for screening and assessing responses to organophosphate chemicals.
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Affiliation(s)
- Qi Wang
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, 18 Shuangqing Road, Haidian District, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100085, China
| | - Xiangsheng Hong
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, 18 Shuangqing Road, Haidian District, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100085, China
| | - Huihui Chen
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, 18 Shuangqing Road, Haidian District, Beijing 100085, China
| | - Lilai Yuan
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, 18 Shuangqing Road, Haidian District, Beijing 100085, China
| | - Jinmiao Zha
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, 18 Shuangqing Road, Haidian District, Beijing 100085, China; Beijing Key Laboratory of Industrial Wastewater Treatment and Reuse, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
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Thiel D, Franz-Wachtel M, Aguilera F, Hejnol A. Xenacoelomorph Neuropeptidomes Reveal a Major Expansion of Neuropeptide Systems during Early Bilaterian Evolution. Mol Biol Evol 2018. [PMCID: PMC6188537 DOI: 10.1093/molbev/msy160] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Neuropeptides are neurosecretory signaling molecules in protostomes and deuterostomes (together Nephrozoa). Little, however, is known about the neuropeptide complement of the sister group of Nephrozoa, the Xenacoelomorpha, which together form the Bilateria. Because members of the xenacoelomorph clades Xenoturbella, Nemertodermatida, and Acoela differ extensively in their central nervous system anatomy, the reconstruction of the xenacoelomorph and bilaterian neuropeptide complements may provide insights into the relationship between nervous system evolution and peptidergic signaling. Here, we analyzed transcriptomes of seven acoels, four nemertodermatids, and two Xenoturbella species using motif searches, similarity searches, mass spectrometry and phylogenetic analyses to characterize neuropeptide precursors and neuropeptide receptors. Our comparison of these repertoires with previously reported nephrozoan and cnidarian sequences shows that the majority of annotated neuropeptide GPCRs in cnidarians are not orthologs of specific bilaterian neuropeptide receptors, which suggests that most of the bilaterian neuropeptide systems evolved after the cnidarian–bilaterian evolutionary split. This expansion of more than 20 peptidergic systems in the stem leading to the Bilateria predates the evolution of complex nephrozoan organs and nervous system architectures. From this ancient set of neuropeptides, acoels show frequent losses that correlate with their divergent central nervous system anatomy. We furthermore detected the emergence of novel neuropeptides in xenacoelomorphs and their expansion along the nemertodermatid and acoel lineages, the two clades that evolved nervous system condensations. Together, our study provides fundamental insights into the early evolution of the bilaterian peptidergic systems, which will guide future functional and comparative studies of bilaterian nervous systems.
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Affiliation(s)
- Daniel Thiel
- Sars International Centre for Marine Molecular Biology, University of Bergen, Bergen, Norway
| | | | - Felipe Aguilera
- Departamento de Bioquímica y Biología Molecular, Facultad de Ciencias Biológicas, Universidad de Concepción, Concepción, Chile
- Sars International Centre for Marine Molecular Biology, University of Bergen, Bergen, Norway
| | - Andreas Hejnol
- Sars International Centre for Marine Molecular Biology, University of Bergen, Bergen, Norway
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21
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Zhang M, Wang Y, Li Y, Li W, Li R, Xie X, Wang S, Hu X, Zhang L, Bao Z. Identification and Characterization of Neuropeptides by Transcriptome and Proteome Analyses in a Bivalve Mollusc Patinopecten yessoensis. Front Genet 2018; 9:197. [PMID: 29922332 PMCID: PMC5996578 DOI: 10.3389/fgene.2018.00197] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2017] [Accepted: 05/15/2018] [Indexed: 11/28/2022] Open
Abstract
Neuropeptides play essential roles in regulation of reproduction and growth in marine molluscs. But their function in marine bivalves – a group of animals of commercial importance – is largely unexplored due to the lack of systematic identification of these molecules. In this study, we sequenced and analyzed the transcriptome of nerve ganglia of Yesso scallop Patinopecten yessoensis, from which 63 neuropeptide genes were identified based on BLAST and de novo prediction approaches, and 31 were confirmed by proteomic analysis using the liquid chromatography-tandem mass spectrometry (LC-MS/MS). Fifty genes encode known neuropeptide precursors, of which 20 commonly exist in bilaterians and 30 are protostome specific. Three neuropeptides that have not yet been reported in bivalves were identified, including calcitonin/DH31, lymnokinin and pleurin. Characterization of glycoprotein hormones, insulin-like peptides, allatostatins, RFamides, and some reproduction, cardioactivity or feeding related neuropeptides reveals scallop neuropeptides have conserved molluscan neuropeptide domains, but some (e.g., GPB5, APGWamide and ELH) are characterized with bivalve-specific features. Thirteen potentially novel neuropeptides were identified, including 10 that may also exist in other protostomes, and 3 (GNamide, LRYamide, and Vamide) that may be scallop specific. In addition, we found neuropeptides potentially related to scallop shell growth and eye functioning. This study represents the first comprehensive identification of neuropeptides in scallop, and would contribute to a complete understanding on the roles of various neuropeptides in endocrine regulation in bivalve molluscs.
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Affiliation(s)
- Meiwei Zhang
- MOE Key Laboratory of Marine Genetics and Breeding, Ocean University of China, Qingdao, China
| | - Yangfan Wang
- MOE Key Laboratory of Marine Genetics and Breeding, Ocean University of China, Qingdao, China
| | - Yangping Li
- MOE Key Laboratory of Marine Genetics and Breeding, Ocean University of China, Qingdao, China
| | - Wanru Li
- MOE Key Laboratory of Marine Genetics and Breeding, Ocean University of China, Qingdao, China
| | - Ruojiao Li
- MOE Key Laboratory of Marine Genetics and Breeding, Ocean University of China, Qingdao, China
| | - Xinran Xie
- MOE Key Laboratory of Marine Genetics and Breeding, Ocean University of China, Qingdao, China
| | - Shi Wang
- MOE Key Laboratory of Marine Genetics and Breeding, Ocean University of China, Qingdao, China.,Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Xiaoli Hu
- MOE Key Laboratory of Marine Genetics and Breeding, Ocean University of China, Qingdao, China.,Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Lingling Zhang
- MOE Key Laboratory of Marine Genetics and Breeding, Ocean University of China, Qingdao, China.,Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Zhenmin Bao
- MOE Key Laboratory of Marine Genetics and Breeding, Ocean University of China, Qingdao, China.,Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
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22
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Suwansa-Ard S, Chaiyamoon A, Talarovicova A, Tinikul R, Tinikul Y, Poomtong T, Elphick MR, Cummins SF, Sobhon P. Transcriptomic discovery and comparative analysis of neuropeptide precursors in sea cucumbers (Holothuroidea). Peptides 2018; 99:231-240. [PMID: 29054501 DOI: 10.1016/j.peptides.2017.10.008] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 10/15/2017] [Accepted: 10/16/2017] [Indexed: 12/16/2022]
Abstract
Neuropeptides synthesized and released by neuronal cells play important roles in the regulation of many processes, e.g. growth, feeding, reproduction, and behavior. In the past decade, next-generation sequencing technologies have helped to facilitate the identification of multiple neuropeptide genes in a variety of taxa, including arthropods, molluscs and echinoderms. In this study, we extend these studies to Holothuria scabra, a sea cucumber species that is widely cultured for human consumption. In silico analysis of H. scabra neural and gonadal transcriptomes enabled the identification of 28 transcripts that encode a total of 26 bilaterian and echinoderm-specific neuropeptide precursors. Furthermore, publicly available sequence data from another sea cucumber, Holothuria glaberrima, allowed a more in-depth comparative investigation. Interestingly, two isoforms of a calcitonin-type peptide precursor (CTPP) were deduced from the H. scabra transcriptome - HscCTPP-long and HscCTPP-short, likely the result of alternative splicing. We also identified a sea cucumber relaxin-type peptide precursor, which is of interest because relaxin-type peptides have been shown to act as gonadotropic hormones in starfish. Two neuropeptides that appear to be holothurian-specific are GLRFA, and GN-19. In H. scabra, the expression of GLRFA was restricted to neural tissues, while GN-19 expression was additionally found in the longitudinal muscle and intestinal tissues. In conclusion, we have obtained new insights into the neuropeptide signaling systems of holothurians, which will facilitate physiological studies that may enable advances in the aquaculture of sea cucumbers.
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Affiliation(s)
- Saowaros Suwansa-Ard
- Department of Anatomy, Faculty of Science, Mahidol University, Bangkok 10400, Thailand; Faculty of Science, Health, Education and Engineering, University of the Sunshine Coast, Maroochydore, Queensland 4558, Australia
| | - Arada Chaiyamoon
- Department of Anatomy, Faculty of Science, Mahidol University, Bangkok 10400, Thailand
| | - Alzbeta Talarovicova
- School of Biological and Chemical Sciences, Queen Mary University of London, London E1 4NS, United Kingdom
| | - Ruchanok Tinikul
- Department of Biochemistry and Center for Excellence in Protein and Enzyme Technology, Faculty of Science, Mahidol University, Bangkok 10400, Thailand
| | - Yotsawan Tinikul
- Department of Anatomy, Faculty of Science, Mahidol University, Bangkok 10400, Thailand; Mahidol University, Nakhonsawan Campus, Nakhonsawan 60130, Thailand
| | - Tanes Poomtong
- Coastal Fisheries Research and Development Center, Klongwan, Prachuab Khiri Khan 77000, Thailand
| | - Maurice R Elphick
- School of Biological and Chemical Sciences, Queen Mary University of London, London E1 4NS, United Kingdom
| | - Scott F Cummins
- Faculty of Science, Health, Education and Engineering, University of the Sunshine Coast, Maroochydore, Queensland 4558, Australia
| | - Prasert Sobhon
- Department of Anatomy, Faculty of Science, Mahidol University, Bangkok 10400, Thailand; Faculty of Allied Health Sciences, Burapha University, Chonburi 20131, Thailand.
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23
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Bose U, Suwansa-Ard S, Maikaeo L, Motti CA, Hall MR, Cummins SF. Neuropeptides encoded within a neural transcriptome of the giant triton snail Charonia tritonis, a Crown-of-Thorns Starfish predator. Peptides 2017; 98:3-14. [PMID: 28082215 DOI: 10.1016/j.peptides.2017.01.004] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Revised: 12/06/2016] [Accepted: 01/06/2017] [Indexed: 11/22/2022]
Abstract
Neuropeptides represent a diverse class of signaling molecules originating from neural tissues. These chemical modulators orchestrate complex physiological events including those associated with growth and reproduction. De novo transcriptome sequencing of a cerebral ganglion library of the endangered giant triton snail (Charonia tritonis) was undertaken in an effort to identify key neuropeptides that control or influence its physiology. The giant triton snail is considered a primary predator of the corallivore Acanthaster planci (Crown-of-Thorns Starfish) that is responsible for a significant loss in coral cover on reefs in the Indo-Pacific. The transcriptome library was assembled into contigs, and then bioinformatic analysis was used to identify a repertoire of 38 giant triton snail neuropeptide precursor genes, and various isoforms, that encode conserved molluscan neuropeptides. C. tritonis neuropeptides show overall precursor organisation consistent with those of other molluscs. These include those neuropeptides associated with mollusc reproduction such as the APGWamide, buccalin, conopressin, gonadotropin-releasing hormone (GnRH), NKY and egg-laying hormone. These data provide a foundation for further studies targeted towards the functional characterisation of neuropeptides to further understand aspects of the biology of the giant triton snail, such as elucidating its reproductive neuroendocrine pathway to allow the development of knowledge based captive breeding programs.
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Affiliation(s)
- U Bose
- School of Science and Education, Genecology Research Center, University of the Sunshine Coast, Maroochydore DC, Queensland, Australia; Australian Institute of Marine Science, Townsville, Queensland, Australia
| | - S Suwansa-Ard
- School of Science and Education, Genecology Research Center, University of the Sunshine Coast, Maroochydore DC, Queensland, Australia
| | - L Maikaeo
- Department of Bioinformatics, Prince of Songkhla University, Thailand
| | - C A Motti
- Australian Institute of Marine Science, Townsville, Queensland, Australia
| | - M R Hall
- Australian Institute of Marine Science, Townsville, Queensland, Australia
| | - S F Cummins
- School of Science and Education, Genecology Research Center, University of the Sunshine Coast, Maroochydore DC, Queensland, Australia.
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24
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Zhao M, Wang T, Stewart MJ, Bose U, Suwansa-ard S, Storey KB, Cummins SF. eSnail: A transcriptome-based molecular resource of the central nervous system for terrestrial gastropods. Mol Ecol Resour 2017; 18:147-158. [DOI: 10.1111/1755-0998.12722] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2016] [Revised: 09/01/2017] [Accepted: 09/07/2017] [Indexed: 01/04/2023]
Affiliation(s)
- Min Zhao
- School of Engineering; Faculty of Science, Health, Education and Engineering; University of the Sunshine Coast; Maroochydore DC Qld Australia
| | - Tianfang Wang
- School of Engineering; Faculty of Science, Health, Education and Engineering; University of the Sunshine Coast; Maroochydore DC Qld Australia
| | - Michael J. Stewart
- School of Engineering; Faculty of Science, Health, Education and Engineering; University of the Sunshine Coast; Maroochydore DC Qld Australia
| | - Utpal Bose
- School of Engineering; Faculty of Science, Health, Education and Engineering; University of the Sunshine Coast; Maroochydore DC Qld Australia
| | - Saowaros Suwansa-ard
- School of Engineering; Faculty of Science, Health, Education and Engineering; University of the Sunshine Coast; Maroochydore DC Qld Australia
| | - Kenneth B. Storey
- Department of Biology; Institute of Biochemistry; Carleton University; Ottawa ON Canada
| | - Scott F. Cummins
- School of Engineering; Faculty of Science, Health, Education and Engineering; University of the Sunshine Coast; Maroochydore DC Qld Australia
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25
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Kiss T. Do terrestrial gastropods use olfactory cues to locate and select food actively? INVERTEBRATE NEUROSCIENCE 2017; 17:9. [PMID: 28688004 DOI: 10.1007/s10158-017-0202-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Accepted: 06/29/2017] [Indexed: 10/19/2022]
Abstract
Having been investigated for over 40 years, some aspects of the biology of terrestrial gastropod's olfactory system have been challenging and highly contentious, while others still remain unresolved. For example, a number of terrestrial gastropod species can track the odor of food, while others have no strong preferences toward food odor; rather they find it by random encounter. Here, while assessing the most recent findings and comparing them with earlier studies, the aspects of the food selection based on olfactory cues are examined critically to highlight the speculations and controversies that have arisen. We analyzed and compared the potential role of airborne odors in the feeding behavior of several terrestrial gastropod species. The available results indicate that in the foraging of most of the terrestrial gastropod species odor cues contribute substantially to food finding and selection. The results also suggest, however, that what they will actually consume largely depends on where they live and the species of gastropod that they are. Due to the voluminous literature relevant to this object, this review is not intended to be exhaustive. Instead, I selected what I consider to be the most important or critical in studies regarding the role of the olfaction in feeding of terrestrial gastropods.
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Affiliation(s)
- Tibor Kiss
- Department of Experimental Zoology, Balaton Limnological Institute, MTA Centre for Ecological Research, Klebelsberg Kuno Str. 2-3, Tihany, 8237, Hungary.
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26
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Copy number alteration of neuropeptides and receptors in multiple cancers. Sci Rep 2017; 7:4598. [PMID: 28676692 PMCID: PMC5496884 DOI: 10.1038/s41598-017-04832-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Accepted: 05/22/2017] [Indexed: 11/29/2022] Open
Abstract
Neuropeptides are peptide hormones used as chemical signals by the neuroendocrine system to communicate between cells. Recently, neuropeptides have been recognized for their ability to act as potent cellular growth factors on many cell types, including cancer cells. However, the molecular mechanism for how this occurs is unknown. To clarify the relationship between neuropeptides and cancer, we manually curated a total of 127 human neuropeptide genes by integrating information from the literature, homologous sequences, and database searches. Using human ligand-receptor interaction data, we first identified an interactome of 226 interaction pairs between 93 neuropeptides and 133 G-protein coupled receptors. We further identified four neuropeptide-receptor functional modules with ten or more genes, all of which were highly mutated in multiple cancers. We have identified a number of neuropeptide signaling systems with both oncogenic and tumour-suppressing roles for cancer progression, such as the insulin-like growth factors. By focusing on the neuroendocrine prostate cancer mutational data, we found prevalent amplification of neuropeptide and receptors in about 72% of samples. In summary, we report the first observation of abundant copy number variations on neuropeptides and receptors, which will be valuable for the design of peptide-based cancer prognosis, diagnosis and treatment.
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27
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Ahn SJ, Martin R, Rao S, Choi MY. Neuropeptides predicted from the transcriptome analysis of the gray garden slug Deroceras reticulatum. Peptides 2017; 93:51-65. [PMID: 28502716 DOI: 10.1016/j.peptides.2017.05.005] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2017] [Revised: 05/04/2017] [Accepted: 05/06/2017] [Indexed: 12/28/2022]
Abstract
The gray garden slug, Deroceras reticulatum (Gastropoda: Pulmonata), is one of the most common terrestrial molluscs. Research for this slug has focused mainly on its ecology, biology, and management due to the severe damage it causes on a wide range of vegetables and field crops. However, little is known about neuropeptides and hormonal signalings. This study, therefore, aimed to establish the transcriptome of D. reticulatum and to identify a comprehensive repertoire of neuropeptides in this slug. Illumina high-throughput sequencing of the whole body transcriptome of D. reticulatum generated a total of 5.9 billion raw paired-end reads. De novo assembly by Trinity resulted in 143,575 transcripts and further filtration selected 120,553 unigenes. Gene Ontology (GO) terms were assigned to 30,588 unigenes, composed of biological processes (36.9%), cellular components (30.2%) and molecular functions (32.9%). Functional annotation by BLASTx revealed 39,987 unigenes with hits, which were further categorized into important functional groups based on sequence abundance. Neuropeptides, ion channels, ribosomal proteins, G protein-coupled receptors, detoxification, immunity and cytoskeleton-related sequences were dominant among the transcripts. BLAST searches and PCR amplification were used to identify 65 putative neuropeptide precursor genes from the D. reticulatum transcriptome, which include achatin, AKH, allatostatin A, B and C, allatotropin, APGWamide, CCAP, cerebrin, conopressin, cysteine-knot protein hormones (bursicon alpha/beta and GPA2/GPB5), elevenin, FCAP, FFamide, FVamide (enterin, fulicin, MIP and PRQFVamide), GGNG, GnRH, insulin, NdWFamide, NKY, PKYMDT, PRXamide (myomodulin, pleurin and sCAP), RFamide (CCK/SK, FMRFamide, FxRIamide, LFRFamide, luqin and NPF), and tachykinin. Over 330 putative peptides were encoded by these precursors. Comparative analysis among different molluscan species clearly revealed that, while D. reticulatum neuropeptide sequences are conserved in Mollusca, there are also some unique features distinct from other members of this species. This is the first transcriptome-wide report of neuropeptides in terrestrial slugs. Our results provide comprehensive transcriptome data of the gray garden slug, with a more detailed focus on the rich repertoire of putative neuropeptide sequences, laying the foundation for molecular studies in this terrestrial slug pest.
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Affiliation(s)
- Seung-Joon Ahn
- USDA-ARS Horticultural Crops Research Unit,3420 NW Orchard Avenue, Corvallis, OR, 97330, USA; Department of Crop and Soil Science, Oregon State University, Corvallis, OR, 97331, USA
| | - Ruth Martin
- USDA-ARS Forage Seed and Cereal Research Unit, 3450 SW Campus Way, Corvallis, OR, 97331, USA
| | - Sujaya Rao
- Department of Crop and Soil Science, Oregon State University, Corvallis, OR, 97331, USA
| | - Man-Yeon Choi
- USDA-ARS Horticultural Crops Research Unit,3420 NW Orchard Avenue, Corvallis, OR, 97330, USA.
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Parmakelis A, Kotsakiozi P, Kontos CK, Adamopoulos PG, Scorilas A. The transcriptome of a "sleeping" invader: de novo assembly and annotation of the transcriptome of aestivating Cornu aspersum. BMC Genomics 2017; 18:491. [PMID: 28659170 PMCID: PMC5490208 DOI: 10.1186/s12864-017-3885-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2017] [Accepted: 06/20/2017] [Indexed: 11/25/2022] Open
Abstract
Background Cornu aspersum is a quite intriguing species from the point of view of ecology and evolution and its potential use in medical and environmental applications. It is a species of economic importance since it is farmed and used for culinary purposes. However, the genomic tools that would allow a thorough insight into the ecology, evolution, nutritional and medical properties of this highly adaptable organism, are missing. In this work, using next-generation sequencing (NGS) techniques we assessed a significant portion of the transcriptome of this non-model organism. Results Out of the 9445 de novo assembled contigs, 2886 (30.6%) returned significant hits and for 2261 (24%) of them Gene Ontology (GO) terms associated to the hits were retrieved. A high percentage of the contigs (69.4%) produced no BLASTx hits. The GO terms were grouped to reflect biological processes, molecular functions and cellular components. Certain GO terms were dominant in all groups. After scanning the assembled transcriptome for microsatellites (simple sequence repeats, SSRs), a total of 563 SSRs were recovered. Among the identified SSRs, trinucleotide repeats were the predominant followed by tetranucleotide and dinucleotide repeats. Conclusion The annotation success of the transcriptome of C. aspersum was relatively low. This is probably due to the very limited number of annotated reference genomes existing for mollusc species, especially terrestrial ones. Several biological processes being active in the aestivating species were revealed through the association of the transcripts to enzymes relating to the pathways. The genomic tools provided herein will eventually aid in the study of the global genomic diversity of the species and the investigation of aspects of the ecology, evolution, behavior, nutritional and medical properties of this highly adaptable organism.
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Affiliation(s)
- Aristeidis Parmakelis
- Department of Ecology and Taxonomy, Faculty of Biology, National and Kapodistrian University of Athens, Athens, Greece.
| | - Panayiota Kotsakiozi
- Department of Ecology and Taxonomy, Faculty of Biology, National and Kapodistrian University of Athens, Athens, Greece
| | - Christos K Kontos
- Department of Biochemistry and Molecular Biology, Faculty of Biology, National and Kapodistrian University of Athens, Athens, Greece
| | - Panagiotis G Adamopoulos
- Department of Biochemistry and Molecular Biology, Faculty of Biology, National and Kapodistrian University of Athens, Athens, Greece
| | - Andreas Scorilas
- Department of Biochemistry and Molecular Biology, Faculty of Biology, National and Kapodistrian University of Athens, Athens, Greece
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Wang T, Zhao M, Liang D, Bose U, Kaur S, McManus DP, Cummins SF. Changes in the neuropeptide content of Biomphalaria ganglia nervous system following Schistosoma infection. Parasit Vectors 2017; 10:275. [PMID: 28578678 PMCID: PMC5455113 DOI: 10.1186/s13071-017-2218-1] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Accepted: 05/24/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Molluscs, including snails, are prone to parasite infection, which can lead to massive physiological and behavioural changes, yet many of the molecular components involved remain unresolved. Central to this point is the neural system that in snails consists of several ganglia that regulate the animals' physiology and behaviour patterns. The availability of a genomic resource for the freshwater snail Biomphalaria glabrata provides a mean towards the high throughput analysis of changes in the central nervous system (CNS) following infection with Schistosoma miracidia. RESULTS In this study, we performed a proteomic analysis of the B. glabrata CNS at pre-patent infection, providing a list of proteins that were further used within a protein-protein interaction (PPI) framework against S. mansoni proteins. A hub with most connections for both non-infected and infected Biomphalaria includes leucine aminopeptidase 2 (LAP2), which interacts with numerous miracidia proteins that together belong to the immunoglobulin family of cell adhesion related molecules. We additionally reveal the presence of at least 165 neuropeptides derived from the precursors of buccalin, enterin, FMRF, FVRI, pedal peptide 1, 2, 3 and 4, RYamide, RFamide, pleurin and others. Many of these were present at significantly reduced levels in the snail's CNS post-infection, such as the egg laying hormone, a neuropeptide required to initiate egg laying in gastropod molluscs. CONCLUSIONS Our analysis demonstrates that LAP2 may be a key component that regulates parasite infection physiology, as well as establishing that parasite-induced reproductive castration may be facilitated by significant reductions in reproduction-associated neuropeptides. This work helps in our understanding of molluscan neuropeptides and further stimulates advances in parasite-host interactions.
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Affiliation(s)
- Tianfang Wang
- Genecology Research Centre, Faculty of Science, Health and Education, University of the Sunshine Coast, Maroochydore DC, Queensland 4558 Australia
| | - Min Zhao
- Genecology Research Centre, Faculty of Science, Health and Education, University of the Sunshine Coast, Maroochydore DC, Queensland 4558 Australia
| | - Di Liang
- Genecology Research Centre, Faculty of Science, Health and Education, University of the Sunshine Coast, Maroochydore DC, Queensland 4558 Australia
| | - Utpal Bose
- Genecology Research Centre, Faculty of Science, Health and Education, University of the Sunshine Coast, Maroochydore DC, Queensland 4558 Australia
| | - Satwant Kaur
- Institute of Environment, Health and Societies, Brunel University London, Kingston Lane, London, UB8 3PH UK
| | - Donald P. McManus
- Molecular Parasitology Laboratory, QIMR Berghofer Medical Research Institute, Brisbane, Queensland 4006 Australia
| | - Scott F. Cummins
- Genecology Research Centre, Faculty of Science, Health and Education, University of the Sunshine Coast, Maroochydore DC, Queensland 4558 Australia
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30
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Adamson KJ, Wang T, Rotgans BA, Kruangkum T, Kuballa AV, Storey KB, Cummins SF. Genes and associated peptides involved with aestivation in a land snail. Gen Comp Endocrinol 2017; 246:88-98. [PMID: 26497253 DOI: 10.1016/j.ygcen.2015.10.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2015] [Revised: 10/14/2015] [Accepted: 10/19/2015] [Indexed: 01/01/2023]
Abstract
Some animals can undergo a remarkable transition from active normal life to a dormant state called aestivation; entry into this hypometabolic state ensures that life continues even during long periods of environmental hardship. In this study, we aimed to identify those central nervous system (CNS) peptides that may regulate metabolic suppression leading to aestivation in land snails. Mass spectral-based neuropeptidome analysis of the CNS comparing active and aestivating states, revealed 19 differentially produced peptides; 2 were upregulated in active animals and 17 were upregulated in aestivated animals. Of those, the buccalin neuropeptide was further investigated since there is existing evidence in molluscs that buccalin modulates physiology by muscle contraction. The Theba pisana CNS contains two buccalin transcripts that encode precursor proteins that are capable of releasing numerous buccalin peptides. Of these, Tpi-buccalin-2 is most highly expressed within our CNS transcriptome derived from multiple metabolic states. No significant difference was observed at the level of gene expression levels for Tpi-buccalin-2 between active and aestivated animals, suggesting that regulation may reside at the level of post-translational control of peptide abundance. Spatial gene and peptide expression analysis of aestivated snail CNS demonstrated that buccalin-2 has widespread distribution within regions that control several physiological roles. In conclusion, we provide the first detailed molecular analysis of the peptides and associated genes that are related to hypometabolism in a gastropod snail known to undergo extended periods of aestivation.
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Affiliation(s)
- K J Adamson
- Genecology Research Centre, Faculty of Science, Health, Education and Engineering, University of the Sunshine Coast, Maroochydore DC, Queensland 4558, Australia
| | - T Wang
- Genecology Research Centre, Faculty of Science, Health, Education and Engineering, University of the Sunshine Coast, Maroochydore DC, Queensland 4558, Australia
| | - B A Rotgans
- Genecology Research Centre, Faculty of Science, Health, Education and Engineering, University of the Sunshine Coast, Maroochydore DC, Queensland 4558, Australia
| | - T Kruangkum
- Genecology Research Centre, Faculty of Science, Health, Education and Engineering, University of the Sunshine Coast, Maroochydore DC, Queensland 4558, Australia
| | - A V Kuballa
- Genecology Research Centre, Faculty of Science, Health, Education and Engineering, University of the Sunshine Coast, Maroochydore DC, Queensland 4558, Australia
| | - K B Storey
- Institute of Biochemistry & Department of Biology, Carleton University, 1125 Colonel By Drive, Ottawa, ON K1S 5B6, Canada
| | - S F Cummins
- Genecology Research Centre, Faculty of Science, Health, Education and Engineering, University of the Sunshine Coast, Maroochydore DC, Queensland 4558, Australia.
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Robinson SD, Li Q, Bandyopadhyay PK, Gajewiak J, Yandell M, Papenfuss AT, Purcell AW, Norton RS, Safavi-Hemami H. Hormone-like peptides in the venoms of marine cone snails. Gen Comp Endocrinol 2017; 244:11-18. [PMID: 26301480 PMCID: PMC4762756 DOI: 10.1016/j.ygcen.2015.07.012] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2015] [Revised: 06/30/2015] [Accepted: 07/04/2015] [Indexed: 12/13/2022]
Abstract
The venoms of cone snails (genus Conus) are remarkably complex, consisting of hundreds of typically short, disulfide-rich peptides termed conotoxins. These peptides have diverse pharmacological targets, with injection of venom eliciting a range of physiological responses, including sedation, paralysis and sensory overload. Most conotoxins target the prey's nervous system but evidence of venom peptides targeting neuroendocrine processes is emerging. Examples include vasopressin, RFamide neuropeptides and recently also insulin. To investigate the diversity of hormone/neuropeptide-like molecules in the venoms of cone snails we systematically mined the venom gland transcriptomes of several cone snail species and examined secreted venom peptides in dissected and injected venom of the Australian cone snail Conus victoriae. Using this approach we identified several novel hormone/neuropeptide-like toxins, including peptides similar to the bee brain hormone prohormone-4, the mollusc ganglia neuropeptide elevenin, and thyrostimulin, a member of the glycoprotein hormone family, and confirmed the presence of insulin. We confirmed that at least two of these peptides are not only expressed in the venom gland but also form part of the injected venom cocktail, unambiguously demonstrating their role in envenomation. Our findings suggest that hormone/neuropeptide-like toxins are a diverse and integral part of the complex envenomation strategy of Conus. Exploration of this group of venom components offers an exciting new avenue for the discovery of novel pharmacological tools and drug candidates, complementary to conotoxins.
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Affiliation(s)
- Samuel D Robinson
- Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria 3052, Australia.
| | - Qing Li
- Eccles Institute of Human Genetics, University of Utah, and School of Medicine, Salt Lake City, UT 84112, USA
| | | | - Joanna Gajewiak
- Department of Biology, University of Utah, Salt Lake City, UT 84112, USA
| | - Mark Yandell
- Eccles Institute of Human Genetics, University of Utah, and School of Medicine, Salt Lake City, UT 84112, USA
| | - Anthony T Papenfuss
- Bioinformatics Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria 3052, Australia
| | - Anthony W Purcell
- The Department of Biochemistry and Molecular Biology, School of Biomedical Sciences, Monash University, Clayton, Victoria 3800, Australia
| | - Raymond S Norton
- Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria 3052, Australia
| | - Helena Safavi-Hemami
- Department of Biology, University of Utah, Salt Lake City, UT 84112, USA; Department of Biology, Copenhagen Biocenter, Ole Maaløes Vej 5, DK-2200 Copenhagen, Denmark.
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Yang L, Cheng TY, Zhao FY. Comparative profiling of hepatopancreas transcriptomes in satiated and starving Pomacea canaliculata. BMC Genet 2017; 18:18. [PMID: 28228093 PMCID: PMC5322654 DOI: 10.1186/s12863-017-0485-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2016] [Accepted: 02/11/2017] [Indexed: 12/13/2022] Open
Abstract
Background Although Pomacea canaliculata is native to South and Central America, it has become one of the most abundant invasive species worldwide and causes extensive damage to agriculture and horticulture. Conventional physical and chemical techniques have been used to eliminate P. canaliculata, but the effects are not ideal. Therefore, it is important to devise a new method based on a greater understanding of the biology of P. canaliculata. However, the molecular mechanisms underlying digestion and absorption in P. canaliculata are not well understood due to the lack of available genomic information for this species, particularly for digestive enzyme genes. Results In the present study, hepatopancreas transcriptome sequencing produced over 223 million high-quality reads, and a global de novo assembly generated a total of 87,766 unique transcripts (unigenes), of which 19,942 (22.7%) had significant similarities to proteins in the UniProt database. In addition, 296,675 annotated sequences were associated with Gene Ontology (GO) terms. A Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment was performed for the unique unigenes, and 262 pathways (p-value < 10−5) in P. canaliculata were found to be predominantly related to plant consumption and coarse fiber digestion and absorption. These transcripts were classified into four large categories: hydrolase, transferase, isomerase and cytochrome P450. The Reads Per Kilobase of transcript per Million mapped reads (RPKM) analysis showed that there were 523 down-regulated unigenes and 406 up-regulated unigenes in the starving apple snails compared with the satiated apple snails. Several important genes are associated with digestion and absorption in plants: endo-beta-1, 4-glucanase, xylanase, cellulase, cellulase EGX1, cellulase EGX3 and G-type lysozyme genes were identified. The qRT-PCR results confirmed that the expression patterns of these genes (except for the longipain gene) were consistent with the RNA-Seq results. Conclusions Our results provide a more comprehensive understanding of the molecular genes associated with hepatopancreas functioning. Differentially expressed genes corresponding to critical metabolic pathways were detected in the transcriptome of starving apple snails compared with satiated apple snails. In addition to the cellulase gene, other genes were identified that may be important factors in plant matter metabolism in P. canaliculata, and this information has the potential to expedite the study of digestive physiology in apple snails. Electronic supplementary material The online version of this article (doi:10.1186/s12863-017-0485-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Lei Yang
- Laboratory of Molecular Physiology, College of Veterinary Medicine, Hunan Agricultural University, Changsha, Hunan Province, 410128, People's Republic of China.
| | - Tian-Yin Cheng
- Laboratory of Molecular Pathology, College of Veterinary Medicine, Hunan Agricultural University, Changsha, 410128, People's Republic of China
| | - Fei-Yan Zhao
- Laboratory of Molecular Physiology, College of Veterinary Medicine, Hunan Agricultural University, Changsha, Hunan Province, 410128, People's Republic of China
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Kang SW, Patnaik BB, Hwang HJ, Park SY, Chung JM, Song DK, Patnaik HH, Lee JB, Kim C, Kim S, Park HS, Park SH, Park YS, Han YS, Lee JS, Lee YS. Sequencing and de novo assembly of visceral mass transcriptome of the critically endangered land snail Satsuma myomphala: Annotation and SSR discovery. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY D-GENOMICS & PROTEOMICS 2016; 21:77-89. [PMID: 28107688 DOI: 10.1016/j.cbd.2016.10.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2016] [Revised: 10/24/2016] [Accepted: 10/26/2016] [Indexed: 12/12/2022]
Abstract
Satsuma myomphala is critically endangered through loss of natural habitats, predation by natural enemies, and indiscriminate collection. It is a protected species in Korea but lacks genomic resources for an understanding of varied functional processes attributable to evolutionary success under natural habitats. For assessing the genetic information of S. myomphala, we performed for the first time, de novo transcriptome sequencing and functional annotation of expressed sequences using Illumina Next-Generation Sequencing (NGS) platform and bioinformatics analysis. We identified 103,774 unigenes of which 37,959, 12,890, and 17,699 were annotated in the PANM (Protostome DB), Unigene, and COG (Clusters of Orthologous Groups) databases, respectively. In addition, 14,451 unigenes were predicted under Gene Ontology functional categories, with 4581 assigned to a single category. Furthermore, 3369 sequences with 646 having Enzyme Commission (EC) numbers were mapped to 122 pathways in the Kyoto Encyclopedia of Genes and Genomes Pathway database. The prominent protein domains included the Zinc finger (C2H2-like), Reverse Transcriptase, Thioredoxin-like fold, and RNA recognition motif domain. Many unigenes with homology to immunity, defense, and reproduction-related genes were screened in the transcriptome. We also detected 3120 putative simple sequence repeats (SSRs) encompassing dinucleotide to hexanucleotide repeat motifs from >1kb unigene sequences. A list of PCR primers of SSR loci have been identified to study the genetic polymorphisms. The transcriptome data represents a valuable resource for further investigations on the species genome structure and biology. The unigenes information and microsatellites would provide an indispensable tool for conservation of the species in natural and adaptive environments.
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Affiliation(s)
- Se Won Kang
- Department of Life Science and Biotechnology, College of Natural Sciences, Soonchunhyang University, 22 Soonchunhyangro, Shinchang-myeon, Asan, Chungcheongnam-do 31538, Republic of Korea
| | - Bharat Bhusan Patnaik
- Department of Life Science and Biotechnology, College of Natural Sciences, Soonchunhyang University, 22 Soonchunhyangro, Shinchang-myeon, Asan, Chungcheongnam-do 31538, Republic of Korea; Trident School of Biotech Sciences, Trident Academy of Creative Technology (TACT), Bhubaneswar, Odisha, 751024, India
| | - Hee-Ju Hwang
- Department of Life Science and Biotechnology, College of Natural Sciences, Soonchunhyang University, 22 Soonchunhyangro, Shinchang-myeon, Asan, Chungcheongnam-do 31538, Republic of Korea
| | - So Young Park
- Biodiversity Conservation & Change Research Division, Nakdonggang National Institute of Biological Resources, 137, Donam 2-gil, Sangju-si, Gyeongsangbuk-do, 37242, Republic of Korea
| | - Jong Min Chung
- Department of Life Science and Biotechnology, College of Natural Sciences, Soonchunhyang University, 22 Soonchunhyangro, Shinchang-myeon, Asan, Chungcheongnam-do 31538, Republic of Korea
| | - Dae Kwon Song
- Department of Life Science and Biotechnology, College of Natural Sciences, Soonchunhyang University, 22 Soonchunhyangro, Shinchang-myeon, Asan, Chungcheongnam-do 31538, Republic of Korea
| | - Hongray Howrelia Patnaik
- Department of Life Science and Biotechnology, College of Natural Sciences, Soonchunhyang University, 22 Soonchunhyangro, Shinchang-myeon, Asan, Chungcheongnam-do 31538, Republic of Korea
| | - Jae Bong Lee
- Korea Zoonosis Research Institute (KOZRI), Chonbuk National University, 820-120 Hana-ro, Iksan, Jeollabuk-do 54528, Republic of Korea
| | - Changmu Kim
- National Institute of Biological Resources, 42, Hwangyeong-ro, Seo-gu, Incheon 22689, Republic of Korea
| | - Soonok Kim
- National Institute of Biological Resources, 42, Hwangyeong-ro, Seo-gu, Incheon 22689, Republic of Korea
| | - Hong Seog Park
- Research Institute, GnC BIO Co., Ltd., 621-6 Banseok-dong, Yuseong-gu, Daejeon 34069, Republic of Korea
| | - Seung-Hwan Park
- Biological Resource Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 181 Ipsin-gil (Shinjeong0dong), Jungeup-si, Jeollabuk-do,56212, Republic of Korea
| | - Young-Su Park
- Department of Nursing, College of Medicine, Soonchunhyang University, 22 Soonchunhyangro, Shinchang-myeon, Asan, Chungcheongnam-do 31538, Republic of Korea
| | - Yeon Soo Han
- College of Agriculture and Life Science, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Republic of Korea
| | - Jun Sang Lee
- Institute of Environmental Research, Kangwon National University, 1 Kangwondaehak-gil, Chuncheon, Gangwon-do-si 243341, Republic of Korea
| | - Yong Seok Lee
- Department of Life Science and Biotechnology, College of Natural Sciences, Soonchunhyang University, 22 Soonchunhyangro, Shinchang-myeon, Asan, Chungcheongnam-do 31538, Republic of Korea.
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Characterisation of Reproduction-Associated Genes and Peptides in the Pest Land Snail, Theba pisana. PLoS One 2016; 11:e0162355. [PMID: 27706146 PMCID: PMC5051934 DOI: 10.1371/journal.pone.0162355] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Accepted: 08/22/2016] [Indexed: 01/18/2023] Open
Abstract
Increased understanding of the molecular components involved in reproduction may assist in understanding the evolutionary adaptations used by animals, including hermaphrodites, to produce offspring and retain a continuation of their lineage. In this study, we focus on the Mediterranean snail, Theba pisana, a hermaphroditic land snail that has become a highly invasive pest species within agricultural areas throughout the world. Our analysis of T. pisana CNS tissue has revealed gene transcripts encoding molluscan reproduction-associated proteins including APGWamide, gonadotropin-releasing hormone (GnRH) and an egg-laying hormone (ELH). ELH isoform 1 (ELH1) is known to be a potent reproductive peptide hormone involved in ovulation and egg-laying in some aquatic molluscs. Two other non-CNS ELH isoforms were also present in T. pisana (Tpi-ELH2 and Tpi-ELH3) within the snail dart sac and mucous glands. Bioactivity of a synthetic ELH1 on sexually mature T. pisana was confirmed through bioassay, with snails showing ELH1-induced egg-laying behaviours, including soil burrowing and oviposition. In summary, this study presents a detailed molecular analysis of reproductive neuropeptide genes in a land snail and provides a foundation for understanding ELH function.
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Suwansa-Ard S, Zhao M, Thongbuakaew T, Chansela P, Ventura T, Cummins SF, Sobhon P. Gonadotropin-releasing hormone and adipokinetic hormone/corazonin-related peptide in the female prawn. Gen Comp Endocrinol 2016; 236:70-82. [PMID: 27401259 DOI: 10.1016/j.ygcen.2016.07.008] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Revised: 05/02/2016] [Accepted: 07/07/2016] [Indexed: 11/25/2022]
Abstract
Crustacean neuropeptides (NPs) play important roles in the regulation of most physiological activities, including growth, molting and reproduction. In this study, we have performed an in silico analysis of female prawn (Macrobrachium rosenbergii) neural transcriptomes to identify NPs not previously identified. We predict that approximately 1309 proteins are destined for the secretory pathway, many of which are likely post-translationally processed to generate active peptides. Within this neural secretome, we identified a gene transcript that encoded a precursor protein with striking similarity to a gonadotropin-releasing hormone (GnRH). We additionally identified another GnRH NP superfamily member, the adipokinetic hormone/corazonin-related peptide (ACP). M. rosenbergii GnRH and ACP were widespread throughout the nervous tissues, implicating them as potential neuromodulators. Furthermore, GnRH was found in non-neural tissues, including the stomach, gut, heart, testis and ovary, in the latter most prominently within secondary oocytes. The GnRH/corazonin receptor-like gene is specific to the ovary, whereas the receptor-like gene expression is more widespread. Administration of GnRH had no effect on ovarian development and maturation, nor any effect on total hemolymph lipid levels, while ACP administration decreased oocyte proliferation (at high dose) and stimulated a significant increase in total hemolymph lipids. In conclusion, our targeted analysis of the M. rosenbergii neural secretome has revealed the decapod GnRH and ACP genes. We propose that ACP in crustaceans plays a role in the lipid metabolism and the inhibition of oocyte proliferation, while the role of the GnRH remains to be clearly defined, possibly through experiments involving gene silencing.
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Affiliation(s)
- Saowaros Suwansa-Ard
- Department of Anatomy, Faculty of Science, Mahidol University, Bangkok 10400, Thailand; Faculty of Science, Health, Education and Engineering, University of the Sunshine Coast, Maroochydore, Queensland 4558, Australia
| | - Min Zhao
- Faculty of Science, Health, Education and Engineering, University of the Sunshine Coast, Maroochydore, Queensland 4558, Australia
| | - Tipsuda Thongbuakaew
- Department of Anatomy, Faculty of Science, Mahidol University, Bangkok 10400, Thailand; School of Medicine, Walailak University, Nakhon Si Thammarat 80161, Thailand
| | - Piyachat Chansela
- Department of Anatomy, Phramongkutklao College of Medicine, Bangkok 10400, Thailand
| | - Tomer Ventura
- Faculty of Science, Health, Education and Engineering, University of the Sunshine Coast, Maroochydore, Queensland 4558, Australia
| | - Scott F Cummins
- Faculty of Science, Health, Education and Engineering, University of the Sunshine Coast, Maroochydore, Queensland 4558, Australia.
| | - Prasert Sobhon
- Department of Anatomy, Faculty of Science, Mahidol University, Bangkok 10400, Thailand; Faculty of Allied Health Sciences, Burapha University, Chonburi 20131, Thailand.
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Ip JCH, Leung PTY, Ho KKY, Qiu JW, Leung KMY. De novo transcriptome assembly of the marine gastropod Reishia clavigera for supporting toxic mechanism studies. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2016; 178:39-48. [PMID: 27450239 DOI: 10.1016/j.aquatox.2016.07.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Revised: 07/06/2016] [Accepted: 07/14/2016] [Indexed: 06/06/2023]
Abstract
The intertidal whelk Reishia clavigera is commonly used as a biomonitor of chemical contamination in the marine environment along Western Pacific region, and as a model for mechanistic studies of organotin-mediated imposex development. However, limited genomic resources of R. clavigera have restricted its role for the investigation of molecular mechanisms of such endocrine disruptions. This study, therefore, aimed to establish tissue-specific transcriptomes of the digestive gland, gonad, head ganglia, penis and the remaining body part of the male and female R. clavigera. By combining the results, a global transcriptome was obtained. A total of 578,134,720 high-quality filtered reads were obtained using Illumina sequencing. The R. clavigera transcriptome comprised of 38,466 transcripts and 32,798 unigenes with predicted open reading frames. The average length of transcripts was 1,709bp with N50 of 2,236bp. Based on sequence similarity searches against public databases, 28,657 transcripts and 24,403 unigenes had at least one BLAST hit. There were 17,530 transcripts and 14,897 unigenes annotated with at least one Gene Ontology (GO) term. Moreover, 5,776 transcripts and 5,137 unigenes were associated with 333 Kyoto Encyclopaedia of Genes and Genomes (KEGG) pathways. The numbers of unigenes were similar among the five target tissues and between sexes, but tissue-specific expression profiles were revealed by multivariate analyses. Based on the functional annotation, putative steroid hormone-associated unigenes were identified. In particular, we highlighted the presence of steroid hormone receptor homologues that could be the targets for mechanistic studies of the organotin-mediated imposex development in marine gastropods. This newly generated transcriptome assembly of R. clavigera provides a valuable molecular resource for ecotoxicological and environmental genomic studies.
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Affiliation(s)
- Jack C H Ip
- The Swire Institute of Marine Science and School of Biological Sciences, The University of Hong Kong, Pokfulam, Hong Kong, China
| | - Priscilla T Y Leung
- The Swire Institute of Marine Science and School of Biological Sciences, The University of Hong Kong, Pokfulam, Hong Kong, China; State Key Laboratory in Marine Pollution, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Kevin K Y Ho
- The Swire Institute of Marine Science and School of Biological Sciences, The University of Hong Kong, Pokfulam, Hong Kong, China
| | - J W Qiu
- State Key Laboratory in Marine Pollution, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China; Department of Biology, Hong Kong Baptist University, Waterloo Road, Kowloon, Hong Kong, China
| | - Kenneth M Y Leung
- The Swire Institute of Marine Science and School of Biological Sciences, The University of Hong Kong, Pokfulam, Hong Kong, China; State Key Laboratory in Marine Pollution, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China.
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Wang T, Nuurai P, McDougall C, York PS, Bose U, Degnan BM, Cummins SF. Identification of a female spawn-associated Kazal-type inhibitor from the tropical abalone Haliotis asinina. J Pept Sci 2016; 22:461-70. [PMID: 27352998 DOI: 10.1002/psc.2887] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2016] [Revised: 03/26/2016] [Accepted: 03/26/2016] [Indexed: 11/05/2022]
Abstract
Abalone (Haliotis) undergoes a period of reproductive maturation, followed by the synchronous release of gametes, called broadcast spawning. Field and laboratory studies have shown that the tropical species Haliotis asinina undergoes a two-week spawning cycle, thus providing an excellent opportunity to investigate the presence of endogenous spawning-associated peptides. In female H. asinina, we have isolated a peptide (5145 Da) whose relative abundance in hemolymph increases substantially just prior to spawning and is still detected using reverse-phase high-performance liquid chromatography chromatograms up to 1-day post-spawn. We have isolated this peptide from female hemolymph as well as samples prepared from the gravid female gonad, and demonstrated through comparative sequence analysis that it contains features characteristic of Kazal-type proteinase inhibitors (KPIs). Has-KPI is expressed specifically within the gonad of adult females. A recombinant Has-KPI was generated using a yeast expression system. The recombinant Has-KPI does not induce premature spawning of female H. asinina when administered intramuscularly. However it displays homomeric aggregations and interaction with at least one mollusc-type neuropeptide (LRDFVamide), suggesting a role for it in regulating neuropeptide endocrine communication. This research provides new understanding of a peptide that can regulate reproductive processes in female abalone, which has the potential to lead to the development of greater control over abalone spawning. The findings also highlight the need to further explore abalone reproduction to clearly define a role for novel spawning-associated peptide in sexual maturation and spawning. Copyright © 2016 European Peptide Society and John Wiley & Sons, Ltd.
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Affiliation(s)
- Tianfang Wang
- Faculty of Science, Health and Education, University of the Sunshine Coast, Maroochydore, QLD, 4558, Australia
| | - Parinyaporn Nuurai
- Faculty of Allied Health Sciences, Burapha University, Chonburi, 20131, Thailand
| | - Carmel McDougall
- School of Biological Sciences, The University of Queensland, St Lucia, QLD, 4072, Australia
| | - Patrick S York
- School of Biological Sciences, The University of Queensland, St Lucia, QLD, 4072, Australia
| | - Utpal Bose
- Faculty of Science, Health and Education, University of the Sunshine Coast, Maroochydore, QLD, 4558, Australia
| | - Bernard M Degnan
- School of Biological Sciences, The University of Queensland, St Lucia, QLD, 4072, Australia
| | - Scott F Cummins
- Faculty of Science, Health and Education, University of the Sunshine Coast, Maroochydore, QLD, 4558, Australia
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Global metabolite analysis of the land snail Theba pisana hemolymph during active and aestivated states. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY D-GENOMICS & PROTEOMICS 2016; 19:25-33. [PMID: 27318654 DOI: 10.1016/j.cbd.2016.05.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Revised: 05/18/2016] [Accepted: 05/25/2016] [Indexed: 12/14/2022]
Abstract
The state of metabolic dormancy has fascinated people for hundreds of years, leading to research exploring the identity of natural molecular components that may induce and maintain this state. Many animals lower their metabolism in response to high temperatures and/or arid conditions, a phenomenon called aestivation. The biological significance for this is clear; by strongly suppressing metabolic rate to low levels, animals minimize their exposure to stressful conditions. Understanding blood or hemolymph metabolite changes that occur between active and aestivated animals can provide valuable insights relating to those molecular components that regulate hypometabolism in animals, and how they afford adaptation to their different environmental conditions. In this study, we have investigated the hemolymph metabolite composition from the land snail Theba pisana, a remarkably resilient mollusc that displays an annual aestivation period. Using LC-MS-based metabolomics analysis, we have identified those hemolymph metabolites that show significant changes in relative abundance between active and aestivated states. We show that certain metabolites, including some phospholipids [e.g. LysoPC(14:0)], and amino acids such as l-arginine and l-tyrosine, are present at high levels within aestivated snails. Further investigation of our T. pisana RNA-sequencing data elucidated the entire repertoire of phospholipid-synthesis genes in the snail digestive gland, as a precursor towards future comparative investigation between the genetic components of aestivating and non-aestivating species. In summary, we have identified a large number of metabolites that are elevated in the hemolymph of aestivating snails, supporting their role in protecting against heat or desiccation.
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Stewart MJ, Harding BI, Adamson KJ, Wang T, Storey KB, Cummins SF. Characterisation of two conopressin precursor isoforms in the land snail, Theba pisana. Peptides 2016; 80:32-39. [PMID: 26752717 DOI: 10.1016/j.peptides.2015.12.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2015] [Revised: 11/22/2015] [Accepted: 12/28/2015] [Indexed: 12/15/2022]
Abstract
Increased understanding of the molecular components involved in mollusc reproduction may assist in understanding the evolutionary adaptations used by animals, including hermaphrodites, to produce offspring. The neuropeptide conopressin, a member of the vasopressin/oxytocin-like peptide family, can modulate various reproductive activities in invertebrates. In this study, we used the hermaphroditic land snail, Theba pisana, to investigate the presence and tissue-specific distribution of a conopressin gene. Our transcriptomic analysis of T. pisana CNS sheath tissue has revealed two conopressin gene transcripts (Tpi-conopressin-1 and Tpi-conopressin-2), each encoding for precursors containing an identical conopressin nonapeptide and a variable neurophysin. T. pisana conopressins share high identity with other land snails and slugs, as well as other mollusc and vertebrate vasopressin/oxytocin, supported by phylogenetic analysis. Conserved residues in the T. pisana neurophysin are important for peptide binding, and we present molecular dynamic models demonstrating the most likely stable structure of the Tpi-conopressin-1 peptide when associated with neurophysin. RT-PCR shows that Tpi-conopressin-1 is additionally expressed in reproductive tissues, including the dart sac, where abundant spatial expression throughout the sac region is found; this implies a role in 'love' dart synthesis or dart injection during mating. The presence of a conopressin receptor in the CNS sheath indicates CNS neural excitation. In summary, this study represents a detailed molecular analysis of conopressin in a land snail.
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Affiliation(s)
- M J Stewart
- Genecology Research Centre, Faculty of Science, Health, Education and Engineering, University of the Sunshine Coast, Maroochydore DC, Queensland 4558, Australia
| | - B I Harding
- Genecology Research Centre, Faculty of Science, Health, Education and Engineering, University of the Sunshine Coast, Maroochydore DC, Queensland 4558, Australia
| | - K J Adamson
- Genecology Research Centre, Faculty of Science, Health, Education and Engineering, University of the Sunshine Coast, Maroochydore DC, Queensland 4558, Australia
| | - T Wang
- Genecology Research Centre, Faculty of Science, Health, Education and Engineering, University of the Sunshine Coast, Maroochydore DC, Queensland 4558, Australia
| | - K B Storey
- Institute of Biochemistry & Department of Biology, Carleton University, 1125 Colonel By Drive, Ottawa, ON K1 S 5B6, Canada
| | - S F Cummins
- Genecology Research Centre, Faculty of Science, Health, Education and Engineering, University of the Sunshine Coast, Maroochydore DC, Queensland 4558, Australia.
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Adamson KJ, Wang T, Rotgans BA, Kuballa AV, Storey KB, Cummins SF. Differential peptide expression in the central nervous system of the land snail Theba pisana, between active and aestivated. Peptides 2016; 80:61-71. [PMID: 26303007 DOI: 10.1016/j.peptides.2015.08.012] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2015] [Revised: 08/16/2015] [Accepted: 08/17/2015] [Indexed: 12/25/2022]
Abstract
Hypometabolism is a physiological state of dormancy entered by many animals in times of environmental stress. There are gaps in our understanding of the molecular components used by animals to achieve this metabolic state. The availability of genomic and transcriptome data can be useful to study the process of hypometabolism at the molecular level. In this study, we use the land snail Theba pisana to identify peptides that may be involved in the hypometabolic state known as aestivation. We found a total of 22 neuropeptides in the central nervous system (CNS) that were differentially produced during activity and aestivation based on mass spectral-based neuropeptidome analysis. Of these, 4 were upregulated in active animals and 18 were upregulated in aestivation. A neuropeptide known to regulate muscle contractions in a variety of molluscs, the small cardioactive peptide A (sCAPA), and a peptide of yet unknown function (termed Aestivation Associated Peptide 12) were chosen for further investigation using temporal and spatial expression analysis of the precursor gene and peptide. Both peptides share expression within regions of the CNS cerebral ganglia and suboesophageal ganglia. Relative transcript abundance suggests that regulation of peptide synthesis and secretion is post-transcriptional. In summary, we provide new insights into the molecular basis of the regulation of aestivation in land snails through CNS peptide control.
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Affiliation(s)
- K J Adamson
- Genecology Research Centre, Faculty of Science, Health, Education and Engineering, University of the Sunshine Coast, Maroochydore DC, Queensland 4558, Australia
| | - T Wang
- Genecology Research Centre, Faculty of Science, Health, Education and Engineering, University of the Sunshine Coast, Maroochydore DC, Queensland 4558, Australia
| | - B A Rotgans
- Genecology Research Centre, Faculty of Science, Health, Education and Engineering, University of the Sunshine Coast, Maroochydore DC, Queensland 4558, Australia
| | - A V Kuballa
- Genecology Research Centre, Faculty of Science, Health, Education and Engineering, University of the Sunshine Coast, Maroochydore DC, Queensland 4558, Australia
| | - K B Storey
- Institute of Biochemistry & Department of Biology, Carleton University, 1125 Colonel By Drive, Ottawa, ON K1S 5B6, Canada
| | - S F Cummins
- Genecology Research Centre, Faculty of Science, Health, Education and Engineering, University of the Sunshine Coast, Maroochydore DC, Queensland 4558, Australia.
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41
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Kang SW, Patnaik BB, Hwang HJ, Park SY, Wang TH, Park EB, Chung JM, Song DK, Patnaik HH, Lee JB, Kim C, Kim S, Park HS, Lee JS, Han YS, Lee YS. De novo Transcriptome Generation and Annotation for Two Korean Endemic Land Snails, Aegista chejuensis and Aegista quelpartensis, Using Illumina Paired-End Sequencing Technology. Int J Mol Sci 2016; 17:379. [PMID: 26999110 PMCID: PMC4813237 DOI: 10.3390/ijms17030379] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Revised: 03/05/2016] [Accepted: 03/09/2016] [Indexed: 12/24/2022] Open
Abstract
Aegista chejuensis and Aegista quelpartensis (Family-Bradybaenidae) are endemic to Korea, and are considered vulnerable due to declines in their population. The limited genetic resources for these species restricts the ability to prioritize conservation efforts. We sequenced the transcriptomes of these species using Illumina paired-end technology. Approximately 257 and 240 million reads were obtained and assembled into 198,531 and 230,497 unigenes for A. chejuensis and A. quelpartensis, respectively. The average and N50 unigene lengths were 735.4 and 1073 bp, respectively, for A. chejuensis, and 705.6 and 1001 bp, respectively, for A. quelpartensis. In total, 68,484 (34.5%) and 77,745 (33.73%) unigenes for A. chejuensis and A. quelpartensis, respectively, were annotated to databases. Gene Ontology terms were assigned to 23,778 (11.98%) and 26,396 (11.45) unigenes, for A. chejuensis and A. quelpartensis, respectively, while 5050 and 5838 unigenes were mapped to 117 and 124 pathways in the Kyoto Encyclopedia of Genes and Genomes database. In addition, we identified and annotated 9542 and 10,395 putative simple sequence repeats (SSRs) in unigenes from A. chejuensis and A. quelpartensis, respectively. We designed a list of PCR primers flanking the putative SSR regions. These microsatellites may be utilized for future phylogenetics and conservation initiatives.
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Affiliation(s)
- Se Won Kang
- Department of Life Science and Biotechnology, College of Natural Sciences, Soonchunhyang University, 22 Soonchunhyangro, Shinchang-myeon, Asan, Chungcheongnam-do 31538, Korea.
| | - Bharat Bhusan Patnaik
- Department of Life Science and Biotechnology, College of Natural Sciences, Soonchunhyang University, 22 Soonchunhyangro, Shinchang-myeon, Asan, Chungcheongnam-do 31538, Korea.
- Trident School of Biotech Sciences, Trident Academy of Creative Technology (TACT), Chandaka Industrial Estate, Chandrasekharpur, Bhubaneswar, Odisha 751024, India.
| | - Hee-Ju Hwang
- Department of Life Science and Biotechnology, College of Natural Sciences, Soonchunhyang University, 22 Soonchunhyangro, Shinchang-myeon, Asan, Chungcheongnam-do 31538, Korea.
| | - So Young Park
- Department of Life Science and Biotechnology, College of Natural Sciences, Soonchunhyang University, 22 Soonchunhyangro, Shinchang-myeon, Asan, Chungcheongnam-do 31538, Korea.
| | - Tae Hun Wang
- Department of Life Science and Biotechnology, College of Natural Sciences, Soonchunhyang University, 22 Soonchunhyangro, Shinchang-myeon, Asan, Chungcheongnam-do 31538, Korea.
| | - Eun Bi Park
- Department of Life Science and Biotechnology, College of Natural Sciences, Soonchunhyang University, 22 Soonchunhyangro, Shinchang-myeon, Asan, Chungcheongnam-do 31538, Korea.
| | - Jong Min Chung
- Department of Life Science and Biotechnology, College of Natural Sciences, Soonchunhyang University, 22 Soonchunhyangro, Shinchang-myeon, Asan, Chungcheongnam-do 31538, Korea.
| | - Dae Kwon Song
- Department of Life Science and Biotechnology, College of Natural Sciences, Soonchunhyang University, 22 Soonchunhyangro, Shinchang-myeon, Asan, Chungcheongnam-do 31538, Korea.
| | - Hongray Howrelia Patnaik
- Department of Life Science and Biotechnology, College of Natural Sciences, Soonchunhyang University, 22 Soonchunhyangro, Shinchang-myeon, Asan, Chungcheongnam-do 31538, Korea.
| | - Jae Bong Lee
- Korea Zoonosis Research Institute (KOZRI), Chonbuk National University, 820-120 Hana-ro, Iksan, Jeollabuk-do 54528, Korea.
| | - Changmu Kim
- National Institute of Biological Resources, 42, Hwangyeong-ro, Seo-gu, Incheon 22689, Korea.
| | - Soonok Kim
- National Institute of Biological Resources, 42, Hwangyeong-ro, Seo-gu, Incheon 22689, Korea.
| | - Hong Seog Park
- Research Institute, GnC BIO Co., LTD. 621-6 Banseok-dong, Yuseong-gu, Daejeon 34069, Korea.
| | - Jun Sang Lee
- Institute of Environmental Research, Kangwon National University, 1 Kangwondaehak-gil, Chuncheon-si, Gangwon-do 243341, Korea.
| | - Yeon Soo Han
- College of Agriculture and Life Science, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Korea.
| | - Yong Seok Lee
- Department of Life Science and Biotechnology, College of Natural Sciences, Soonchunhyang University, 22 Soonchunhyangro, Shinchang-myeon, Asan, Chungcheongnam-do 31538, Korea.
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42
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Zhao M, Wang T, Adamson KJ, Storey KB, Cummins SF. Multi-tissue transcriptomics for construction of a comprehensive gene resource for the terrestrial snail Theba pisana. Sci Rep 2016; 6:20685. [PMID: 26852673 PMCID: PMC4745086 DOI: 10.1038/srep20685] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2015] [Accepted: 01/04/2016] [Indexed: 11/18/2022] Open
Abstract
The land snail Theba pisana is native to the Mediterranean region but has become one of the most abundant invasive species worldwide. Here, we present three transcriptomes of this agriculture pest derived from three tissues: the central nervous system, hepatopancreas (digestive gland), and foot muscle. Sequencing of the three tissues produced 339,479,092 high quality reads and a global de novo assembly generated a total of 250,848 unique transcripts (unigenes). BLAST analysis mapped 52,590 unigenes to NCBI non-redundant protein databases and further functional analysis annotated 21,849 unigenes with gene ontology. We report that T. pisana transcripts have representatives in all functional classes and a comparison of differentially expressed transcripts amongst all three tissues demonstrates enormous differences in their potential metabolic activities. The genes differentially expressed include those with sequence similarity to those genes associated with multiple bacterial diseases and neurological diseases. To provide a valuable resource that will assist functional genomics study, we have implemented a user-friendly web interface, ThebaDB (http://thebadb.bioinfo-minzhao.org/). This online database allows for complex text queries, sequence searches, and data browsing by enriched functional terms and KEGG mapping.
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Affiliation(s)
- M Zhao
- School of Engineering, Faculty of Science, Health, Education and Engineering, University of the Sunshine Coast, Maroochydore DC, Queensland, 4558, Australia
| | - T Wang
- School of Engineering, Faculty of Science, Health, Education and Engineering, University of the Sunshine Coast, Maroochydore DC, Queensland, 4558, Australia
| | - K J Adamson
- School of Engineering, Faculty of Science, Health, Education and Engineering, University of the Sunshine Coast, Maroochydore DC, Queensland, 4558, Australia
| | - K B Storey
- Institute of Biochemistry &Department of Biology, Carleton University, 1125 Colonel By Drive, Ottawa, ON, K1S 5B6, Canada
| | - S F Cummins
- School of Engineering, Faculty of Science, Health, Education and Engineering, University of the Sunshine Coast, Maroochydore DC, Queensland, 4558, Australia
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43
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Stewart MJ, Wang T, Koene JM, Storey KB, Cummins SF. A "Love" Dart Allohormone Identified in the Mucous Glands of Hermaphroditic Land Snails. J Biol Chem 2016; 291:7938-50. [PMID: 26817846 DOI: 10.1074/jbc.m115.704395] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2015] [Indexed: 11/06/2022] Open
Abstract
Animals have evolved many ways to enhance their own reproductive success. One bizarre sexual ritual is the "love" dart shooting of helicid snails, which has courted many theories regarding its precise function. Acting as a hypodermic needle, the dart transfers an allohormone that increases paternity success. Its precise physiological mechanism of action within the recipient snail is to close off the entrance to the sperm digestion organ via a contraction of the copulatory canal, thereby delaying the digestion of most donated sperm. In this study, we used the common garden snailCornu aspersumto identify the allohormone that is responsible for this physiological change in the female system of this simultaneous hermaphrodite. The love dart allohormone (LDA) was isolated from extracts derived from mucous glands that coat the dart before it is stabbed through the partner's body wall. We isolated LDA from extracts using bioassay-guided contractility measurement of the copulatory canal. LDA is encoded within a 235-amino acid precursor protein containing multiple cleavage sites that, when cleaved, releases multiple bioactive peptides. Synthetic LDA also stimulated copulatory canal contractility. Combined with our finding that the protein amino acid sequence resembles previously described molluscan buccalin precursors, this indicates that LDA is partially conserved in helicid snails and less in other molluscan species. In summary, our study provides the full identification of an allohormone that is hypodermically injected via a love dart. More importantly, our findings have important consequences for understanding reproductive biology and the evolution of alternative reproductive strategies.
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Affiliation(s)
- Michael J Stewart
- From the Genecology Research Centre, Faculty of Science, Health, Education and Engineering, University of the Sunshine Coast, Maroochydore, Queensland 4558, Australia
| | - Tianfang Wang
- From the Genecology Research Centre, Faculty of Science, Health, Education and Engineering, University of the Sunshine Coast, Maroochydore, Queensland 4558, Australia
| | - Joris M Koene
- the Department of Ecological Science, Faculty of Earth and Life Sciences, Vrije Universiteit, 1081HV Amsterdam, The Netherlands, and
| | - Kenneth B Storey
- the Institute of Biochemistry and Department of Biology, Carleton University, Ottawa, Ontario K1S 5B6, Canada
| | - Scott F Cummins
- From the Genecology Research Centre, Faculty of Science, Health, Education and Engineering, University of the Sunshine Coast, Maroochydore, Queensland 4558, Australia,
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44
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Zatylny-Gaudin C, Cornet V, Leduc A, Zanuttini B, Corre E, Le Corguillé G, Bernay B, Garderes J, Kraut A, Couté Y, Henry J. Neuropeptidome of the Cephalopod Sepia officinalis: Identification, Tissue Mapping, and Expression Pattern of Neuropeptides and Neurohormones during Egg Laying. J Proteome Res 2015; 15:48-67. [PMID: 26632866 DOI: 10.1021/acs.jproteome.5b00463] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Cephalopods exhibit a wide variety of behaviors such as prey capture, communication, camouflage, and reproduction thanks to a complex central nervous system (CNS) divided into several functional lobes that express a wide range of neuropeptides involved in the modulation of behaviors and physiological mechanisms associated with the main stages of their life cycle. This work focuses on the neuropeptidome expressed during egg-laying through de novo construction of the CNS transcriptome using an RNAseq approach (Illumina sequencing). Then, we completed the in silico analysis of the transcriptome by characterizing and tissue-mapping neuropeptides by mass spectrometry. To identify neuropeptides involved in the egg-laying process, we determined (1) the neuropeptide contents of the neurohemal area, hemolymph (blood), and nerve endings in mature females and (2) the expression levels of these peptides. Among the 38 neuropeptide families identified from 55 transcripts, 30 were described for the first time in Sepia officinalis, 5 were described for the first time in the animal kingdom, and 14 were strongly overexpressed in egg-laying females as compared with mature males. Mass spectrometry screening of hemolymph and nerve ending contents allowed us to clarify the status of many neuropeptides, that is, to determine whether they were neuromodulators or neurohormones.
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Affiliation(s)
- Céline Zatylny-Gaudin
- Normandy University , F-14032 Caen, France.,Normandy University , UMR BOREA MNHN, UPMC, UCBN, CNRS-7208, IRD-207, F-14032 Caen, France
| | - Valérie Cornet
- Normandy University , F-14032 Caen, France.,Normandy University , UMR BOREA MNHN, UPMC, UCBN, CNRS-7208, IRD-207, F-14032 Caen, France
| | - Alexandre Leduc
- Normandy University , F-14032 Caen, France.,Normandy University , UMR BOREA MNHN, UPMC, UCBN, CNRS-7208, IRD-207, F-14032 Caen, France
| | - Bruno Zanuttini
- Normandy University , GREYC, UMR CNRS 6072, F-14032 Caen, France
| | - Erwan Corre
- UPMC, CNRS, FR2424, ABiMS, Station Biologique, 29680 Roscoff, France
| | | | - Benoît Bernay
- Normandy University , F-14032 Caen, France.,Post Genomic Platform PROTEOGEN, Normandy University , SF ICORE 4206, F-14032 Caen, France
| | - Johan Garderes
- Center for Marine Research, "Ruder Boskovic" Institute , HR-52210 Rovinj, Croatia
| | - Alexandra Kraut
- Univ. Grenoble Alpes , iRTSV-BGE, F-38000 Grenoble, France.,CEA, iRTSV-BGE, F-38000 Grenoble, France.,INSERM, BGE, F-38000 Grenoble, France
| | - Yohan Couté
- Univ. Grenoble Alpes , iRTSV-BGE, F-38000 Grenoble, France.,CEA, iRTSV-BGE, F-38000 Grenoble, France.,INSERM, BGE, F-38000 Grenoble, France
| | - Joël Henry
- Normandy University , F-14032 Caen, France.,Normandy University , UMR BOREA MNHN, UPMC, UCBN, CNRS-7208, IRD-207, F-14032 Caen, France.,Post Genomic Platform PROTEOGEN, Normandy University , SF ICORE 4206, F-14032 Caen, France
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