Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
5.1
3.5
Journals
Genes
Special Issues
Advances in Genes and Genomics of Aquatic Animals and Pathogens
share announcement

Special Issue "Advances in Genes and Genomics of Aquatic Animals and Pathogens"

A special issue of Genes (ISSN 2073-4425). This special issue belongs to the section "Animal Genetics and Genomics".

Deadline for manuscript submissions: 25 December 2023 | Viewed by 3047

Special Issue Editors

Dr. Erlong Wang

E-Mail Website
Guest Editor
College of Animal Science and Technology, Northwest A&F University, Yangling 712000, China
Interests: aquatic bacteriology; aquatic virology; aquatic animal immunology; fish vaccines; fish disease resistance genes; host–pathogen interaction
Special Issues, Collections and Topics in MDPI journals
Dr. Zihao Yuan

E-Mail
Guest Editor
Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
Interests: pathogen–host interaction; aquatic animal immunology; immune system evolution; marine virus; evolution
Special Issues, Collections and Topics in MDPI journals
Dr. Zehui Yu

E-Mail Website
Guest Editor
Laboratory Animal Center, Southwest Medical University, Luzhou 646099, China
Interests: virus evolution; virus classification; pathogen identification; bacterial genome
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Over the course of million years of co-evolution, both pathogens and hosts have developed distinct traits for infection and defense. In aquatic species, the innate immune system serves as the primary defense against pathogens. In fish, the mucosal immune system, particularly in the gastrointestinal tract, serves as the primary portal for pathogen invasion. Aquatic invertebrates, such as mollusks, have developed natural immunity via chemical protective products. Microorganisms also play a role in regulating intestinal flora, altering host metabolism and immunity. Comparative analysis of host responses to microorganisms across species is key to understand the function and evolution of immune systems.

Hosts have evolved multiple defense mechanisms involving various genes against pathogen infections. Pattern recognition receptors (PRRs) specifically recognize pathogen-related molecular patterns (PAMPs) of microorganisms. PRRs activate immune responses via multiple signaling pathways to regulate host immunity and influence pathogen survival. Thus, it is worth investigating to explore how hosts respond to microorganisms and vice versa at the gene and genomic level. In addition, intestinal microbes regulate host food intake through the gut–brain axis, and their response to host immune capacity has become a hot research topic.

The Special Issue, "Advances in Genes and Genomics of Aquatic Animals and Pathogens", focuses on the evolution and interaction between microorganisms and hosts in aquatic species. Topics related to the gene and genomic mechanisms of microbial influence on host immunity, the role of pattern recognition receptors in microbial–host interactions, the evolution of pathogenic microbes, and the mechanisms of microorganisms for avoiding host immunity are also welcome. This research topic aims to facilitate the study of microorganism–host interactions and advance the research of genes and genomics in aquatic species.

Dr. Erlong Wang
Dr. Zihao Yuan
Dr. Zehui Yu
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Genes is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • disease resistance genes
  • aquatic animal genomics
  • evolutions in aquatic pathogens
  • aquatic animal viruses
  • aquatic animal bacteria
  • host–pathogen interactions

Published Papers (3 papers)

Download All Papers
Order results
Result details
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:

Research

get_app
Article
Transcriptome Signatures of Atlantic Salmon—Resistant Phenotypes against Sea Lice Infestation Are Associated with Tissue Repair
by
Valentina Valenzuela-Muñoz
,
Cristian Gallardo-Escárate
,
Diego Valenzuela-Miranda
,
Gustavo Nuñez-Acuña
,
Bárbara P. Benavente
,
Alejandro Alert
and
Marta Arevalo
Genes 2023, 14(5), 986; https://doi.org/10.3390/genes14050986 - 27 Apr 2023
Cited by 1 | Viewed by 1088
Abstract
Salmon aquaculture is constantly threatened by pathogens that impact fish health, welfare, and productivity, including the sea louse Caligus rogercresseyi. This marine ectoparasite is mainly controlled through delousing drug treatments that have lost efficacy. Therein, strategies such as salmon breeding selection represent [...] Read more.
Salmon aquaculture is constantly threatened by pathogens that impact fish health, welfare, and productivity, including the sea louse Caligus rogercresseyi. This marine ectoparasite is mainly controlled through delousing drug treatments that have lost efficacy. Therein, strategies such as salmon breeding selection represent a sustainable alternative to produce fish with resistance to sea lice. This study explored the whole-transcriptome changes in Atlantic salmon families with contrasting resistance phenotypes against lice infestation. In total, 121 Atlantic salmon families were challenged with 35 copepodites per fish and ranked after 14 infestation days. Skin and head kidney tissue from the top two lowest (R) and highest (S) infested families were sequenced by the Illumina platform. Genome-scale transcriptome analysis showed different expression profiles between the phenotypes. Significant differences in chromosome modulation between the R and S families were observed in skin tissue. Notably, the upregulation of genes associated with tissue repairs, such as collagen and myosin, was found in R families. Furthermore, skin tissue of resistant families showed the highest number of genes associated with molecular functions such as ion binding, transferase, and cytokine activity, compared with the susceptible. Interestingly, lncRNAs differentially modulated in the R/S families are located near genes associated with immune response, which are upregulated in the R family. Finally, SNPs variations were identified in both salmon families, where the resistant ones showed the highest number of SNPs variations. Remarkably, among the genes with SPNs, genes associated with the tissue repair process were identified. This study reported Atlantic salmon chromosome regions exclusively expressed in R or S Atlantic salmon families’ phenotypes. Furthermore, due to the presence of SNPs and high expression of tissue repair genes in the resistant families, it is possible to suggest mucosal immune activation associated with the Atlantic salmon resistance to sea louse infestation. Full article
(This article belongs to the Special Issue Advances in Genes and Genomics of Aquatic Animals and Pathogens)
►▼ Show Figures

Figure 1

get_app
Article
Japanese Flounder pol-miR-155 Is Involved in Edwardsiella tarda Infection via ATG3
by
Zhanwei Zhang
and
Xiaolu Guan
Genes 2023, 14(5), 958; https://doi.org/10.3390/genes14050958 - 22 Apr 2023
Viewed by 790
Abstract
MicroRNAs (miRNAs) are small RNA molecules that function in the post-transcriptionally regulation of the expression of diverse genes, including those involved in immune defense. Edwardsiella tarda can infect a broad range of hosts and cause severe disease in aquatic species, including Japanese flounder [...] Read more.
MicroRNAs (miRNAs) are small RNA molecules that function in the post-transcriptionally regulation of the expression of diverse genes, including those involved in immune defense. Edwardsiella tarda can infect a broad range of hosts and cause severe disease in aquatic species, including Japanese flounder (Paralichthys olivaceus). In this study, we examined the regulation mechanism of a flounder miRNA, pol-miR-155, during the infection of E. tarda. Pol-miR-155 was identified to target flounder ATG3. Overexpression of pol-miR-155 or knockdown of ATG3 expression suppressed autophagy and promoted the intracellular replication of E. tarda in flounder cells. Overexpression of pol-miR-155 activated the NF-κB signaling pathway and further promoted the expression of downstream immune related genes of interleukin (IL)-6 and IL-8. These results unraveled the regulatory effect of pol-miR-155 in autophagy and in E. tarda infection. Full article
(This article belongs to the Special Issue Advances in Genes and Genomics of Aquatic Animals and Pathogens)
►▼ Show Figures

Figure 1

get_app
Article
Comparative Transcriptomics in Atlantic Salmon Head Kidney and SHK-1 Cell Line Exposed to the Sea Louse Cr-Cathepsin
by
Yeny Leal
,
Valentina Valenzuela-Muñoz
,
Antonio Casuso
,
Bárbara P. Benavente
and
Cristian Gallardo-Escárate
Genes 2023, 14(4), 905; https://doi.org/10.3390/genes14040905 - 13 Apr 2023
Viewed by 917
Abstract
The development of vaccines against sea lice in salmon farming is complex, expensive, and takes several years for commercial availability. Recently, transcriptome studies in sea louse have provided valuable information for identifying relevant molecules with potential use for fish vaccines. However, the bottleneck [...] Read more.
The development of vaccines against sea lice in salmon farming is complex, expensive, and takes several years for commercial availability. Recently, transcriptome studies in sea louse have provided valuable information for identifying relevant molecules with potential use for fish vaccines. However, the bottleneck is the in vivo testing of recombinant protein candidates, the dosage, and the polyvalent formulation strategies. This study explored a cell-based approach to prospect antigens as candidate vaccines against sea lice by comparison with immunized fish. Herein, SHK-1 cells and Atlantic salmon head kidney tissue were exposed to the antigen cathepsin identified from the sea louse Caligus rogercresseyi. The cathepsin protein was cloned and recombinantly expressed in Escherichia coli, and then SHK-1 cell lines were stimulated with 100 ng/mL cathepsin recombinant for 24 h. In addition, Atlantic salmons were vaccinated with 30 ug/mL recombinant protein, and head kidney samples were then collected 30 days post-immunization. SHK-1 cells and salmon head kidney exposed to cathepsin were analyzed by Illumina RNA sequencing. The statistical comparisons showed differences in the transcriptomic profiles between SHK-1 cells and the salmon head kidney. However, 24.15% of the differentially expressed genes were shared. Moreover, putative gene regulation through lncRNAs revealed tissue-specific transcription patterns. The top 50 up and downregulated lncRNAs were highly correlated with genes involved in immune response, iron homeostasis, pro-inflammatory cytokines, and apoptosis. Also, highly enriched pathways related to the immune system and signal transduction were shared between both tissues. These findings highlight a novel approach to evaluating candidate antigens for sea lice vaccine development, improving the antigens screening in the SHK-1 cell line model. Full article
(This article belongs to the Special Issue Advances in Genes and Genomics of Aquatic Animals and Pathogens)
►▼ Show Figures

Figure 1

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying articles 1-3
Back to TopTop