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Kim KT, Kim MA, Kim WJ, Jung MM, Kim DH, Sohn YC. Transcriptome analysis of East Asian common octopus, Octopus sinensis, paralarvae. Genes Genomics 2024; 46:955-966. [PMID: 38922499 DOI: 10.1007/s13258-024-01537-3] [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: 03/25/2024] [Accepted: 06/14/2024] [Indexed: 06/27/2024]
Abstract
BACKGROUND The genes involved in cephalopod development and their association with hatching and survival during early life stages have been extensively studied. However, few studies have investigated the paralarvae transcriptome of the East Asian common octopus (Octopus sinen sis). OBJECTIVE This study aimed to identify the genes related to embryonic development and hatching in O. sinensis using RNA sequencing (RNA-seq) and verify the genes most relevant to different embryonic stages. METHODS RNA samples from hatched and 25 days post-hatching (dph) O. sinensis paralarvae were used to construct cDNA libraries. Clean reads from individual samples were aligned to the reference O. sinensis database to identify the differentially expressed genes (DEGs) between the 0- and 25-dph paralarvae libraries. Real-time quantitative polymerase chain reaction (RT-qPCR) was used to supplement the RNA-seq data for embryogenic developmental stages. RESULTS A total of 12,597 transcripts were annotated and 5,468 DEGs were identified between the 0- and 25-dph O. sinensis paralarvae, including 2,715 upregulated and 2,753 downregulated transcripts in the 25-dph paralarvae. Several key DEGs were related to transmembrane transport, lipid biosynthesis, monooxygenase activity, lipid transport, neuropeptide signaling, transcription regulation, and protein-cysteine S-palmitoyltransferase activity during the post-hatching development of O. sinensis paralarvae. RT-qPCR analysis further revealed that SLC5A3A, ABCC12, and NPC1 transcripts in 20 and/or 30 days post-fertilization (dpf) embryos were significantly higher (p < 0.05) than those in 10-dpf embryos. CONCLUSION Transcriptome profiles provide molecular targets to understand the embryonic development, hatching, and survival of O. sinensis paralarvae, and enhance octopus production.
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Affiliation(s)
- Ki Tae Kim
- Southeast Sea Fisheries Research Institute, National Institute of Fisheries Science, Tongyeong, Gyeongsangnam-Do, 53017, Republic of Korea
| | - Mi Ae Kim
- Department of Marine Bioscience, Gangneung-Wonju National University, Gangneung, Gangwon-Do, 25457, Republic of Korea
- East Coast Research Institute of Life Science, Gangneung-Wonju National University, Gangneung, Gangwon-Do, 25457, Republic of Korea
| | - Woo Jin Kim
- Biotechnology Research Division, National Institute of Fisheries Science, Busan, 46083, Republic of Korea
| | - Min Min Jung
- Subtropical Fisheries Research Institute, National Institute of Fisheries Science, Jeju-do, 63068, Republic of Korea
| | - Dong Hwi Kim
- East Sea Fisheries Research Institute, National Institute of Fisheries Science, Gangneung, Gangwon-Do, 25435, Republic of Korea
| | - Young Chang Sohn
- Department of Marine Bioscience, Gangneung-Wonju National University, Gangneung, Gangwon-Do, 25457, Republic of Korea.
- East Coast Research Institute of Life Science, Gangneung-Wonju National University, Gangneung, Gangwon-Do, 25457, Republic of Korea.
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Wolfe ML, Bowers-Doerning CM, Espinosa A, Frantz T, Hoese WJ, Lam JG, Lamp KR, Lyons RA, Nguyen JK, Keyes BD, Smith J, Suther HL, Swintek M, Vannordstrand JC, Zacherl DC. Intra-decadal increase in globally-spread Magallana gigas in southern California estuaries. PLoS One 2024; 19:e0302935. [PMID: 38717978 PMCID: PMC11078413 DOI: 10.1371/journal.pone.0302935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Accepted: 04/05/2024] [Indexed: 05/12/2024] Open
Abstract
Introduction and establishment of non-indigenous species (NIS) has been accelerated on a global scale by climate change. NIS Magallana gigas' (formerly Crassostrea gigas') global spread over the past several decades has been linked to warming waters, specifically during summer months, raising the specter of more spread due to predicted warming. We tracked changes in density and size distribution of M. gigas in two southern California, USA bays over the decade spanning 2010-2020 using randomly placed quadrats across multiple intertidal habitats (e.g., cobble, seawalls, riprap) and documented density increases by 2.2 to 32.8 times at 7 of the 8 sites surveyed across the two bays. These increases in density were coincident with 2-4° C increases in median monthly seawater temperature during summer months, consistent with global spread of M. gigas elsewhere. Size frequency distribution data, with all size classes represented across sites, suggest now-regular recruitment of M. gigas. Our data provide a baseline against which to compare future changes in density and abundance of a globally-spread NIS of significant concern.
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Affiliation(s)
- Marah L. Wolfe
- Department of Biological Science, California State University Fullerton, Fullerton, California, United States America
| | - Chelsea M. Bowers-Doerning
- Department of Biological Science, California State University Fullerton, Fullerton, California, United States America
| | - Anabell Espinosa
- Department of Biological Science, California State University Fullerton, Fullerton, California, United States America
| | - Ty Frantz
- Department of Biological Science, California State University Fullerton, Fullerton, California, United States America
| | - William J. Hoese
- Department of Biological Science, California State University Fullerton, Fullerton, California, United States America
| | - Joann G. Lam
- Department of Biological Science, California State University Fullerton, Fullerton, California, United States America
| | - Kailee R. Lamp
- Department of Biological Science, California State University Fullerton, Fullerton, California, United States America
| | - Rachael A. Lyons
- Department of Biological Science, California State University Fullerton, Fullerton, California, United States America
| | - Justin K. Nguyen
- Department of Biological Science, California State University Fullerton, Fullerton, California, United States America
| | - Bryce D. Keyes
- Department of Biological Science, California State University Fullerton, Fullerton, California, United States America
| | - Jada Smith
- Department of Biological Science, California State University Fullerton, Fullerton, California, United States America
| | - Holly L. Suther
- Department of Biological Science, California State University Fullerton, Fullerton, California, United States America
- College of the Environment, Western Washington University, Bellingham, WA, United States America
| | - Meaghan Swintek
- Department of Biological Science, California State University Fullerton, Fullerton, California, United States America
| | - Juliann C. Vannordstrand
- Department of Biological Science, California State University Fullerton, Fullerton, California, United States America
| | - Danielle C. Zacherl
- Department of Biological Science, California State University Fullerton, Fullerton, California, United States America
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Sedanza MG, Yoshida A, Kim HJ, Yamaguchi K, Osatomi K, Satuito CG. Identification and Characterization of the Larval Settlement Pheromone Protein Components in Adult Shells of Crassostrea gigas: A Novel Function of Shell Matrix Proteins. Int J Mol Sci 2022; 23:ijms23179816. [PMID: 36077215 PMCID: PMC9456362 DOI: 10.3390/ijms23179816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 08/26/2022] [Accepted: 08/26/2022] [Indexed: 11/30/2022] Open
Abstract
The global decline of natural oyster populations emphasizes the need to improve our understanding of their biology. Understanding the role of chemical cues from conspecifics on how oysters occupy appropriate substrata is crucial to learning about their evolution, population dynamics, and chemical communication. Here, a novel role of a macromolecular assembly of shell matrix proteins which act as Crassostrea gigas Settlement Pheromone Protein Components in adult shells is demonstrated as the biological cue responsible for gregarious settlement on conspecifics. A bioassay-guided fractionation approach aided by biochemical and molecular analyses reveals that Gigasin-6 isoform X1 and/or X2 isolated from adult shells is the major inducing cue for larval settlement and may also play a role in postlarva–larva settlement interactions. Other isolated Stains-all-stainable acidic proteins may function as a co-factor and a scaffold/structural framework for other matrix proteins to anchor within this assembly and provide protection. Notably, conspecific cue-mediated larval settlement induction in C. gigas presents a complex system that requires an interplay of different glycans, disulfide bonds, amino acid groups, and phosphorylation crosstalk for recognition. These results may find application in the development of oyster aquacultures which could help recover declining marine species and as targets of anti-fouling agents.
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Affiliation(s)
- Mary Grace Sedanza
- Graduate School of Fisheries and Environmental Sciences, Nagasaki University, Nagasaki 852-8521, Japan
- Institute of Aquaculture, College of Fisheries and Ocean Sciences, University of the Philippines Visayas, Miagao, Iloilo 5023, Philippines
- Correspondence: or ; Tel.: +81-95-819-2853
| | - Asami Yoshida
- Graduate School of Fisheries and Environmental Sciences, Nagasaki University, Nagasaki 852-8521, Japan
| | - Hee-Jin Kim
- Graduate School of Fisheries and Environmental Sciences, Nagasaki University, Nagasaki 852-8521, Japan
| | - Kenichi Yamaguchi
- Graduate School of Fisheries and Environmental Sciences, Nagasaki University, Nagasaki 852-8521, Japan
| | - Kiyoshi Osatomi
- Graduate School of Fisheries and Environmental Sciences, Nagasaki University, Nagasaki 852-8521, Japan
| | - Cyril Glenn Satuito
- Graduate School of Fisheries and Environmental Sciences, Nagasaki University, Nagasaki 852-8521, Japan
- Organization for Marine Science and Technology, Nagasaki University, Nagasaki 852-8521, Japan
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