Article
Fisheries
Yuanxin Liang, Chengxun Xu, Qi Li
Summary: For aquatic species, intense artificial selection results in decreased genetic diversity and increased genotypic purity, affecting their adaptation to the environment. This study demonstrates that crossbreeding between selected lines of Pacific oysters can improve growth, survival, and genetic diversity. The hybrids showed higher phenotypic traits and genetic diversity compared to purebreds.
Article
Food Science & Technology
Roni Nugraha, Thimo Ruethers, Aya C. Taki, Elecia B. Johnston, Shaymaviswanathan Karnaneedi, Sandip D. Kamath, Andreas L. Lopata
Summary: This study investigates the IgE sensitisation profiles of patients with oyster allergy to raw and heated Pacific oyster extract. Tropomyosin is identified as the major allergen responsible for oyster allergy, and the study also reveals partial cross-reactivity and/or co-sensitisation between oyster, prawn, and dust mite allergens. This research emphasizes the importance of using recombinant tropomyosin in improved diagnostics and immunotherapy.
Article
Biology
Carolina Penaloza, Alejandro P. Gutierrez, Lel Eory, Shan Wang, Ximing Guo, Alan L. Archibald, Tim P. Bean, Ross D. Houston
Summary: A chromosome-level assembly for the Pacific oyster (C. gigas) was created and annotated, providing a valuable resource for genetics and genomics studies, as well as selective breeding in aquaculture.
Article
Fisheries
Jiafeng Fang, Chengxun Xu, Qi Li
Summary: This study investigated the effect of inbreeding on gene expression in the Pacific oyster. It was found that there were differentially expressed genes associated with inbreeding depression. This research contributes to a better understanding and management of inbreeding depression in bivalves, and may potentially benefit oyster breeding in aquaculture.
Article
Environmental Sciences
Yijing Han, Chaoyi Xie, Nini Fan, Hongce Song, Xiaomei Wang, Yanxin Zheng, Meiwei Zhang, Yaqiong Liu, Baoyu Huang, Lei Wei, Xiaotong Wang
Summary: This study used transmission electron microscopy and staining methods to observe melanin in the mantle tissue of Pacific oysters, and preliminarily confirmed its existence. It provides a foundation for further research on melanin synthesis and shell color formation mechanism.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Chemistry, Medicinal
Floriane Boullot, Caroline Fabioux, Helene Hegaret, Pierre Boudry, Philippe Soudant, Evelyne Benoit
Summary: The study reveals that Pacific oysters have a certain sensitivity to paralytic shellfish toxins, with a micromolar range of sensitivity to saxitoxin but less sensitivity to tetrodotoxin. Oysters can be categorized into STX-resistant and STX-sensitive groups regardless of the diet they consume. Additionally, the study highlights the potential of cerebrovisceral nerves of Pacific oysters for electrophysiological and pharmacological studies and demonstrates that the STX sensitivity of oyster nerves can decrease upon exposure to dinoflagellates.
Article
Fisheries
Zhicheng Guo, Jiejie Sun, Xiaoqian Lv, Tong Zhang, Hongsheng Yao, Wei Wu, Zhen Xing, Ning Kong, Lingling Wang, Linsheng Song
Summary: Ferroptosis is a form of cell death in vertebrates that is dependent on iron and oxidation, typically mediated by redox-related molecules. In this study, homologues of glutathione peroxidase 4 (GPX4) and solute carrier family 7 member 11 (SLC7A11, xCT) were identified from the oyster Crassostrea gigas (designated as CgGPX4 and CgxCT). The mRNA transcripts of CgGPX4 and CgxCT were found in various tissues, with the highest expression in the haemocytes. Treatment with erastin induced ferroptosis in oyster haemocytes, as evidenced by cell malformation, cell death, mitochondrial atrophy, and changes in gene expression.
FISH & SHELLFISH IMMUNOLOGY
(2023)
Article
Fisheries
Yan Wang, Dianli Zhao, Jingjie Hu, Zhenmin Bao, Mengqiang Wang
Summary: This study identified differentially expressed proteins in oyster exosomes post bacterial stimulation, revealing the involvement of various proteins in the immune response. The results contribute to a better understanding of the immune functions of oyster exosomes against bacterial infection.
FISH & SHELLFISH IMMUNOLOGY
(2022)
Review
Food Science & Technology
Bertoka Fajar Surya Perwira Negara, Md. Mohibbullah, Jae-Hak Sohn, Jin-Soo Kim, Jae-Suk Choi
Summary: Pacific oysters have high nutritional value and various bioactive components, including proteins, glycogen, minerals, and fatty acids. The bioactive components exhibit antimicrobial, antioxidant, and anti-inflammatory effects. However, most studies on the bioactivity of Pacific oysters are conducted in vitro.
INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY
(2022)
Article
Environmental Sciences
Hoon Choi, Dong-Hoon Im, Yun-Ho Park, Ju-Wook Lee, Sung-Jin Yoon, Un-Ki Hwang
Summary: This study investigates the ingestion and egestion of polystyrene microplastics by Pacific oysters and finds that smaller microplastics have higher ingestion and egestion rates. It also suggests that depuration can reduce the potential risk of microplastics to human health from the intake of maricultural products.
ENVIRONMENTAL POLLUTION
(2022)
Article
Evolutionary Biology
Boyang Hu, Yuan Tian, Qi Li, Shikai Liu
Summary: This study investigated the genomic signatures of long-term selective breeding in Pacific oysters, revealing the impact of artificial selection on genetic diversity and genomic features. Population structure analysis and identification of selective sweeps highlighted the genetic differences between fast-growing oyster strains and wild populations. The findings provide valuable insights for understanding the genetic basis of growth regulation in Pacific oysters and will be beneficial for future genome-assisted breeding programs.
EVOLUTIONARY APPLICATIONS
(2022)
Article
Fisheries
Zhen Xing, Lei Gao, Ranyang Liu, Qian Yang, Qingsong Li, Lingling Wang, Linsheng Song
Summary: Oxidative stress was observed in Pacific oysters (Crassostrea gigas) exposed to high temperature both in indoor experiments and during outdoor aquaculture period. The oxidative stress indicators (SOD, CAT, POD, T-AOC, MDA, and GSH) showed significant changes, with a decrease observed at 28°C in the high-temperature treated groups. During the outdoor aquaculture period, MDA content decreased significantly with increasing temperature. Overall, these findings provide valuable insights into oxidative stress in Pacific oysters exposed to high temperature.
Article
Fisheries
Yulu Chen, Chengxun Xu, Qi Li
Summary: This study assessed the genetic diversity of the base population and improved orange-shell line using microsatellites and mitochondrial DNA sequences, finding that mass selection did not greatly impact the genetic diversity of the improved orange-shell line. This provides important insights into the utilization of shell color variants and future genetic improvement through selective breeding in aquaculture.
Article
Environmental Sciences
Xu Wang, Ping Li, Shuwen He, Shaoying Xing, Zhihan Cao, Xuqian Cao, Bin Liu, Zhi-Hua Li
Summary: The study revealed the histological, biochemical and molecular impacts of tralopyril exposure on adult Crassostrea gigas, showing that higher concentrations of tralopyril caused severer damage to the organisms and significantly affected the expression of biomineralization related genes in the mantle.
Article
Physiology
Kaidi Jin, Qianqian Jin, Zhongqiang Cai, Baoyu Huang, Lei Wei, Meiwei Zhang, Wen Guo, Yaqiong Liu, Xiaotong Wang
Summary: Recent studies reveal that retinoic acid receptors have a higher expression level in mollusks, potentially playing a role in development and metabolism. After injection with retinoic acid, both receptors showed elevated expression levels, indicating a potential regulatory mechanism in mollusks. Additionally, the receptors can interact to form a heterodimer complex, suggesting a conserved function in signaling pathways.
FRONTIERS IN PHYSIOLOGY
(2021)
