Article
Biochemistry & Molecular Biology
Quanxin Gao, Qiongying Tang, Zhenglong Xia, Shaokui Yi, Miuying Cai, Houkuan Du, Jie Yang, Jingfen Li, Qianqian Xing, Jinping Luo, Guoliang Yang
Summary: MyD88 is a crucial adaptor protein for TLR-mediated signaling pathways in immune response. MRMyD88 in Macrobrachium rosenbergii shares high identity with known MyD88 proteins. MRMyD88 mRNA is widely expressed in all examined tissues, with highest level in the intestine.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Biochemistry & Molecular Biology
Gulshan Kumar, A. K. Singh, Deepak Agarwal
Summary: Macrobrachium rosenbergii, a valuable farmed freshwater species, is globally affected by white tail disease caused by M. rosenbergii nodavirus (MrNV). MrNV is an important drug target for pathogenesis, encoding RNA-dependent RNA polymerase (RdRp) for genome replication. The predicted three-dimensional structure of MnRdRp shows similarity with other flaviviridae members. The study identified metal binding residues and potential inhibitors for MnRdRp.
JOURNAL OF BIOMOLECULAR STRUCTURE & DYNAMICS
(2023)
Article
Biochemistry & Molecular Biology
Dong Liu, Zhenzhen Hong, Lang Gui, Li Zhao, Yude Wang, Shengming Sun, Mingyou Li
Summary: In this study, PacBio RNA-seq was utilized to analyze the full-length transcriptomes of the brains and thoracic ganglia of Macrobrachium rosenbergii. The results revealed sexual dimorphism in the growth of this aquaculture prawn. Genes associated with protein processing pathways were also identified, and their regulation by multiple LncRNAs in different organs and sexes of the prawn was observed. These findings provide new theories and insights for studying the nervous system, sexual control, and growth dimorphism.
Article
Genetics & Heredity
Jiao Xia, Dong Liu, Wenzong Zhou, Shaokui Yi, Xinhai Wang, Beilei Li, Muhammad Jawad, Haijing Xu, Lang Gui, Mingyou Li
Summary: In this study, RNA sequencing was performed on the brain and gonad organs of Macrobrachium rosenbergii to explore the differential expression of miRNAs. A specific miRNA, dpu-miR-133, was found to be significantly expressed in the male brain and testis but not in the female brain and ovary. Further analysis indicated that dpu-miR-133 targets 5-HT1. This research provides basic data for studying miRNA-mediated regulation of brain, gonad, and reproductive development in M. rosenbergii.
FRONTIERS IN GENETICS
(2022)
Article
Fisheries
Yun Li, Qi Xu, Yuanyuan Gepan, Hong Liu, Jian Su, Xilin Dai
Summary: Toll-like receptors are a family of membrane receptors involved in innate immune responses. Two Toll-like receptors, MrToll1 and MrToll2, were identified in the giant freshwater prawn. They are constitutively expressed in various tissues and play essential roles in regulating immune-related gene expression.
AQUACULTURE REPORTS
(2021)
Article
Fisheries
Gwang Il Jang, Bo Seong Kim, Su Mi Kim, Yun Kyeong Oh, Jae Ok Kim, Jee Youn Hwang, Soon Jeong Lee, Sung Youl Hong, Mun Gyeong Kwon
Summary: White tail disease is caused by Macrobrachium rosenbergii nodavirus (MrNV) and an extra-small virus (XSV). This study detected MrNV in both adult and post-larval prawns, while XSV was not detected. Although no gross signs of the disease were observed, histopathological changes were found in the muscle of adult and post-larval prawns.
Article
Fisheries
Santiago Hamilton, Jose Filipe Silva, Fabio Costa Filho, Silvio Peixoto
Summary: Passive acoustics monitoring has been used to detect crustacean feeding activity. This study evaluated the sound emission of the giant freshwater prawn during feeding commercial food, identifying the sound structure and parameters. The study found that the prawn emits click sounds while consuming food, with some acoustic parameters varying among size classes.
AQUACULTURE RESEARCH
(2021)
Article
Agriculture, Dairy & Animal Science
Fanzeng Meng, Yiting Wang, Guohao Wang, Tao Hu, La Xu, Kathy F. J. Tang, Weifeng Shi, Fan Zhang, Xuan Dong, Jie Huang
Summary: A variant of the Macrobrachium rosenbergii golda virus (MrGV) was found in Chinese prawns and compared with a variant reported in Bangladesh. Although there is currently no evidence that this variant causes disease, it is important to be vigilant as it may lead to mass death of prawn larvae.
Article
Microbiology
Xuan Dong, Guohao Wang, Tao Hu, Juan Li, Chen Li, Zhi Cao, Mang Shi, Yiting Wang, Peizhuo Zou, Jipeng Song, Wen Gao, Fanzeng Meng, Guoliang Yang, Kathy F. J. Tang, Cixiu Li, Weifeng Shi, Jie Huang
Summary: A novel virus, named infectious precocity virus (IPV), belonging to the family Flaviviridae, was identified in prawns with the iron prawn syndrome (IPS). The discovery of IPV provides new insight into the pathology and sexual maturation in crustaceans, calling for quarantine inspection in transboundary trade of live M. rosenbergii and enhanced surveillance of IPV in aquaculture globally.
Article
Microbiology
Dandan Zhou, Shanshan Liu, Guangyu Guo, Xinyi He, Chengguang Xing, Qijin Miao, Gongrui Chen, Xiaolin Chen, Hongyu Yan, Jiamin Zeng, Zhenwen Zheng, Hengwei Deng, Shaoping Weng, Jianguo He
Summary: The study revealed a wide diversity of viruses present in Macrobrachium rosenbergii, and further investigation is needed to understand the association between viruses and diseases in this species.
MICROBIOLOGY SPECTRUM
(2022)
Article
Multidisciplinary Sciences
Ziqi Guo, Likun Xu, Wei Wang, Wei Chen, Chunyan Ma, Fengying Zhang, Lingbo Ma, Zhiqiang Liu, Keyi Ma
Summary: This study cloned two key genes related to molting in Macrobrachium rosenbergii, examined their gene expression profile, and investigated the toxicological effects of nanomaterial exposure on crustacean molting.
SCIENTIFIC REPORTS
(2023)
Article
Fisheries
Fanbin Zhan, Shichun Zhou, Fei Shi, Qingqing Li, Li Lin, Zhendong Qin
Summary: The aquaculture industry has faced financial losses due to disease outbreaks, particularly in the Macrobrachium rosenbergii aquaculture industry. Understanding the host's defense mechanism is crucial for providing effective defense measures. This study used RNA-seq technology to investigate the immune pathways and genes related to innate immunity in hemocytes from M. rosenbergii. The results identified differentially expressed genes and revealed their involvement in antibacterial activities against gram-positive bacteria. These findings contribute valuable data for disease prevention and provide a basis for improved prevention strategies.
FISH & SHELLFISH IMMUNOLOGY
(2023)
Article
Fisheries
Warachin Gangnonngiw, Malinee Bunnontae, Pattanapon Kayansamruaj, Saengchan Senapin, Jiraporn Srisala, Timothy W. Flegel, Kanokpan Wongprasert
Summary: A novel ssDNA virus, Macrobrachium hepatopancreatic bidnavirus (MHBV), was identified in giant freshwater prawn using metagenomic analysis and de novo assembly. This virus showed circular, eosinophilic inclusions in the nuclei of hepatopancreatic cells. The MHBV genome closely matched the polymerase B gene in the V1 fragment of Bombyx mori bidensovirus 2 (BmBDV2) and belongs to the family Bidnaviridae.
Article
Fisheries
Yi Zhuang, Qi Li, Cong Cao, Xiang-Shan Tang, Nu-An Wang, Kun Yuan, Guo-Fang Zhong
Summary: This study found that dietary Bovine lactoferricin significantly improved the growth performance and non-specific immunity of Macrobrachium rosenbergii, with an optimal addition level of 1.5 g/kg.
FISH & SHELLFISH IMMUNOLOGY
(2022)
Article
Environmental Sciences
Qianfu Liu, Yuan Gao, Chao Wang, Yanyi Zeng, Jiajia Ni, Zini Lai
Summary: This study analyzed the impact of environmental microorganisms on the gut microbiota composition of Macrobrachium rosenbergii, a type of shrimp. The results showed significant differences in gut microbiota composition compared to the surrounding water and sediment. The proportion of sediment bacteria in the shrimp gut was higher and varied among different ponds and sampling times. These findings provide important reference information for understanding the influence of environmental microorganisms on shrimp gut microbiota composition.