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Lee YM, Lee GY, Kim HY. Development of a multiplex PCR assay for the simultaneous detection of big blue octopus ( Octopus cyanea), giant Pacific octopus ( Enteroctopus dofleini), and common octopus ( Octopus vulgaris). Food Sci Biotechnol 2022; 31:497-504. [PMID: 35464245 PMCID: PMC8994793 DOI: 10.1007/s10068-022-01051-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 02/03/2022] [Accepted: 02/09/2022] [Indexed: 11/29/2022] Open
Abstract
Since octopuses are similar in appearance and can be processed into various forms, seafood fraud has been reported. In this study, we developed the PCR assay to simultaneously detect three octopuses (big blue octopus, giant Pacific octopus, and common octopus). Specific primer sets were designed based on COI gene. We observed that the specific PCR amplicon sizes were 84 bp for big blue octopus, 117 bp for giant Pacific octopus, and 166 bp for common octopus, respectively. This assay was then used to test for specificity and did not show cross-reactivity with 15 cephalopods families. The limit of detection of the multiplex PCR assay was 0.1 pg. Subsequently, 30 commercial food products were then monitored to evaluate the applicability of this assay. All products were specifically amplified, and three octopus species of interest were distinguished. Therefore, this assay can be used as an octopus authentication tool in the seafood industry.
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Affiliation(s)
- Yu-Min Lee
- Institute of Life Sciences and Resources and Department of Food Science and Biotechnology, Kyung Hee University, Yongin, 17104 Republic of Korea
| | - Ga-Young Lee
- Institute of Life Sciences and Resources and Department of Food Science and Biotechnology, Kyung Hee University, Yongin, 17104 Republic of Korea
| | - Hae-Yeong Kim
- Institute of Life Sciences and Resources and Department of Food Science and Biotechnology, Kyung Hee University, Yongin, 17104 Republic of Korea
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Abstract
Animal welfare consideration and actions are generally addressed to animals similar to us, predominantly large mammals. Invertebrates are neglected partly because they are unknown, though new exploration of the oceans has helped with this. Also, we know little about their ecology and welfare. This is gradually changing, and the octopuses are likely to be the first beneficiaries. Scientists are finding that cephalopods are far more intelligent than we thought, with the Cambridge Declaration of Consciousness suggesting they might possess this quality of mind. Partly as a result, the European Union has described and demanded good care for cephalopods such as the octopus in captivity. Public opinion has been swayed to approval by anecdotes of octopuses doing unusual actions, and by several recent books pointing out interesting and intelligent behavior of cephalopods. Aquariums have begun to feature octopuses for them. With this progress, welfare of invertebrate animals has begun to matter. While the octopuses will be the first animal group to benefit, they may pave the way for us to see that different does not mean unworthy of regard and welfare consideration.
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Affiliation(s)
- Jennifer Mather
- Department of Psychology, University of Lethbridge, Lethbridge, Canada
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Tempestini A, Pinchuk AI, Dufresne F. Spatial genetic structure in Themisto libellula (Amphipoda: Hyperiidae) from the coastal Gulf of Alaska, Bering and Chukchi seas. Polar Biol 2020. [DOI: 10.1007/s00300-020-02745-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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The complete mitochondrial genomes of two octopods of the eastern Pacific Ocean: Octopus mimus and ‘Octopus’ fitchi (Cephalopoda: Octopodidae) and their phylogenetic position within Octopoda. Mol Biol Rep 2019; 47:943-952. [DOI: 10.1007/s11033-019-05186-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Accepted: 11/07/2019] [Indexed: 10/25/2022]
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Conservation Genomics in a Changing Arctic. Trends Ecol Evol 2019; 35:149-162. [PMID: 31699414 DOI: 10.1016/j.tree.2019.09.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2019] [Revised: 09/13/2019] [Accepted: 09/17/2019] [Indexed: 12/25/2022]
Abstract
Although logistically challenging to study, the Arctic is a bellwether for global change and is becoming a model for questions pertinent to the persistence of biodiversity. Disruption of Arctic ecosystems is accelerating, with impacts ranging from mixing of biotic communities to individual behavioral responses. Understanding these changes is crucial for conservation and sustainable economic development. Genomic approaches are providing transformative insights into biotic responses to environmental change, but have seen limited application in the Arctic due to a series of limitations. To meet the promise of genome analyses, we urge rigorous development of biorepositories from high latitudes to provide essential libraries to improve the conservation, monitoring, and management of Arctic ecosystems through genomic approaches.
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Muhammad F, Lü ZM, Liu L, Gong L, Du X, Muhammad Shafi, Kaleri HA. Genetic structure of Octopus minor around Chinese waters as indicated by nuclear DNA variations (Mollusca, Cephalopoda). Zookeys 2018; 775:1-14. [PMID: 30057468 PMCID: PMC6058003 DOI: 10.3897/zookeys.775.24258] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Accepted: 05/29/2018] [Indexed: 11/12/2022] Open
Abstract
Octopus minor is an economically important resource commonly found in Chinese coastal waters. The nuclear gene (RD and ODH) approach of investigation has not reported in this species. Rhodopsin (RD) and octopine dehydrogenase (ODH) genes were used to elaborate the genetic structure collected from eight localities ranging from the northern to the southern coast of China. In total, 118 individuals for the RD gene and 108 for the ODH were sequenced. Overall (RD and ODH) genes resulted in high (0.741±0.032; 0.805±0.038) haplotype and low nucleotide (0.01261±0.00165; 0.00747±0.00086) diversity. Molecular variance displayed higher values among the populations and lower values within the population where the fixation index FST denoted 0.880 and 0.584 in RD and ODH genes respectively. The Dongshan population clustered separately in a phylogenetic tree as in the haplotype networking assessment. The current data suggests that the Dongshan population needs separate management.
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Affiliation(s)
- Faiz Muhammad
- National Engineering Research Center of Marine Facilities Aquaculture, College of Marine Sciences and Technology, Zhejiang Ocean University
- Center of Excellence in Marine Biology, University of Karachi
| | - Zhen-ming Lü
- National Engineering Research Center of Marine Facilities Aquaculture, College of Marine Sciences and Technology, Zhejiang Ocean University
| | - Liqin Liu
- National Engineering Research Center of Marine Facilities Aquaculture, College of Marine Sciences and Technology, Zhejiang Ocean University
| | - Li Gong
- National Engineering Research Center of Marine Facilities Aquaculture, College of Marine Sciences and Technology, Zhejiang Ocean University
| | - Xun Du
- National Engineering Research Center of Marine Facilities Aquaculture, College of Marine Sciences and Technology, Zhejiang Ocean University
| | - Muhammad Shafi
- Lasbella University of Agriculture, Water and Marine Sciences
| | - Hubdar Ali Kaleri
- Department of Animal Science and Aquaculture, Dalhousie University, Canada
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Talbot SL, Sage GK, Rearick JR, Fowler MC, Muñiz-Salazar R, Baibak B, Wyllie-Echeverria S, Cabello-Pasini A, Ward DH. The Structure of Genetic Diversity in Eelgrass (Zostera marina L.) along the North Pacific and Bering Sea Coasts of Alaska. PLoS One 2016; 11:e0152701. [PMID: 27104836 PMCID: PMC4841600 DOI: 10.1371/journal.pone.0152701] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2015] [Accepted: 03/17/2016] [Indexed: 11/25/2022] Open
Abstract
Eelgrass (Zostera marina) populations occupying coastal waters of Alaska are separated by a peninsula and island archipelago into two Large Marine Ecosystems (LMEs). From populations in both LMEs, we characterize genetic diversity, population structure, and polarity in gene flow using nuclear microsatellite fragment and chloroplast and nuclear sequence data. An inverse relationship between genetic diversity and latitude was observed (heterozygosity: R2 = 0.738, P < 0.001; allelic richness: R2 = 0.327, P = 0.047), as was significant genetic partitioning across most sampling sites (θ = 0.302, P < 0.0001). Variance in allele frequency was significantly partitioned by region only in cases when a population geographically in the Gulf of Alaska LME (Kinzarof Lagoon) was instead included with populations in the Eastern Bering Sea LME (θp = 0.128-0.172; P < 0.003), suggesting gene flow between the two LMEs in this region. Gene flow among locales was rarely symmetrical, with notable exceptions generally following net coastal ocean current direction. Genetic data failed to support recent proposals that multiple Zostera species (i.e. Z. japonica and Z. angustifolia) are codistributed with Z. marina in Alaska. Comparative analyses also failed to support the hypothesis that eelgrass populations in the North Atlantic derived from eelgrass retained in northeastern Pacific Last Glacial Maximum refugia. These data suggest northeastern Pacific populations are derived from populations expanding northward from temperate populations following climate amelioration at the terminus of the last Pleistocene glaciation.
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Affiliation(s)
- Sandra L. Talbot
- Alaska Science Center, U.S. Geological Survey, Anchorage, Alaska, United States of America
| | - George K Sage
- Alaska Science Center, U.S. Geological Survey, Anchorage, Alaska, United States of America
| | - Jolene R. Rearick
- Alaska Science Center, U.S. Geological Survey, Anchorage, Alaska, United States of America
- Department of Biology, University of New Mexico, Albuquerque, New Mexico, United States of America
| | - Meg C. Fowler
- Alaska Science Center, U.S. Geological Survey, Anchorage, Alaska, United States of America
| | - Raquel Muñiz-Salazar
- Escuela de Ciencias de la Salud, Universidad Autónoma de Baja California, Ensenada, Baja California, Mexico
| | - Bethany Baibak
- Biological Sciences, Humboldt State University, Arcata, California, United States of America
| | - Sandy Wyllie-Echeverria
- Friday Harbor Laboratories, University of Washington, Friday Harbor, Washington, United States of America
- Center for Marine and Environmental Studies, University of Virgin Islands, St. Thomas, Virgin Islands, United States of America
| | - Alejandro Cabello-Pasini
- Instituto de Investigaciones Oceanológicas, Universidad Autónoma de Baja California, California, Mexico
| | - David H. Ward
- Alaska Science Center, U.S. Geological Survey, Anchorage, Alaska, United States of America
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Allcock AL, Lindgren A, Strugnell J. The contribution of molecular data to our understanding of cephalopod evolution and systematics: a review. J NAT HIST 2014. [DOI: 10.1080/00222933.2013.825342] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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