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Fishes
Special Issues
Genetics and Genomics of Fish
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Genetics and Genomics of Fish

A special issue of Fishes (ISSN 2410-3888). This special issue belongs to the section "Genetics and Biotechnology".

Deadline for manuscript submissions: closed (25 November 2023) | Viewed by 3605

Special Issue Editor

Dr. Yang Wang

E-Mail Website
Guest Editor
Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
Interests: genomics; polyploidy; breeding; unisexual reproduction; evolution

Special Issue Information

Dear Colleagues,

With over 34,000 species in the world, living fish offer vast opportunities for research on genetic diversity, evolution, and adaptation to different environments. The genetics and genomics of fish is a fascinating field with broad-reaching implications for both scientific research and practical applications. It can provide insights into the evolution of fish species and the impact of environmental changes on fish populations, help in the identification of new genetic traits that may be beneficial for aquaculture or sustainable management practices, and aid in the development of tools for disease diagnosis and treatment. This Special Issue invite research papers and reviews on multidisciplinary topics in the broad field of fish genetics and genomics.

Dr. Yang Wang
Guest Editor

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. Fishes 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

genome

aquaculture

evolution

adaptation

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Published Papers (2 papers)

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Research

18 pages, 1533 KiB  
Article
Genetic Structure across Isolated Virginia Populations of the Endangered Candy Darter (Etheostoma osburni)
by Kathryn E. McBaine, Paul L. Angermeier and Eric M. Hallerman
Fishes 2023, 8(10), 490; https://doi.org/10.3390/fishes8100490 - 1 Oct 2023
Viewed by 1778
Abstract
Candy darter Etheostoma osburni, a federally endangered non-game fish, has been extirpated from most of its historic range in Virginia and now occurs in four isolated populations in the New River drainage. Understanding of population genetic structure will provide insights into the [...] Read more.
Candy darter Etheostoma osburni, a federally endangered non-game fish, has been extirpated from most of its historic range in Virginia and now occurs in four isolated populations in the New River drainage. Understanding of population genetic structure will provide insights into the recent natural history of the species and can inform conservation management. Our objectives were to: characterize population genetic structure, estimate and compare effective population sizes (Ne), and use this information to infer recent population history. Variation at mitochondrial cytochrome b sequences among 150 individuals showed 10 haplotypes separated by 1–14 mutational steps, some shared and some unique to particular populations. Variation at 12 microsatellite loci among 171 individuals showed lower variation in Dismal Creek than in other populations. All populations showed evidence of having experienced a genetic bottleneck and were highly differentiated from one another based on both types of DNA markers. Population genetic structure was related to stream position in regard to the New River, suggesting that populations were once connected. Ne estimates for all populations were less than the 500 recommended to maintain evolutionary potential, but most estimates were greater than the 100 needed for use as source populations. Our findings indicate that habitat management to allow expansion of populations, and translocations to exchange genetic material among populations, may be effective tactics to promote conservation of candy darter in Virginia. Full article
(This article belongs to the Special Issue Genetics and Genomics of Fish)
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20 pages, 1763 KiB  
Article
In Silico Chromosome Mapping of the Male-Specific/Linked Loci in the Jade Perch (Scortum barcoo) Suggests Chromosome 19 as the Putative Y Sex Chromosome
by Thitipong Panthum, Pish Wattanadilokchatkun, Kitipong Jaisamut, Worapong Singchat, Syed Farhan Ahmad, Narongrit Muangmai, Prateep Duengkae, Agostinho Antunes and Kornsorn Srikulnath
Fishes 2023, 8(10), 482; https://doi.org/10.3390/fishes8100482 - 27 Sep 2023
Viewed by 1301
Abstract
Jade perch (Scortum barcoo) has an XX/XY sex-determination system (SDS); however, its sex chromosomes and sex-determining region remain unknown. The recent availability of the jade perch chromosome-level genomic data provides a valuable resource for pinpointing the location of functional genes and [...] Read more.
Jade perch (Scortum barcoo) has an XX/XY sex-determination system (SDS); however, its sex chromosomes and sex-determining region remain unknown. The recent availability of the jade perch chromosome-level genomic data provides a valuable resource for pinpointing the location of functional genes and the whole genomic structure. In this study, we conducted. In silico chromosome mapping of male-specific/linked loci of jade perch and identified a potential 11.18 Mb male-linked region localized on chromosome 19 (SBA19). Repeat annotations of the male-linked region revealed an abundance of transposable elements, particularly Ty3/Gypsy and novel repeats. Sequence analysis of this region identified a remnant of amh gene, which is considered a potential candidate for SDS in many teleosts. A duplicate copy of amh remnant was located at SBA6. These duplicated amh copies were highly similar to those of XX/XY SDS in teleosts, in which one copy of amh was identified on the Y sex chromosome. Taken all together, we hypothesize SBA19 as the putative sex chromosome and the 11.18 Mb male-linked region to be a potential male-determining region. Full article
(This article belongs to the Special Issue Genetics and Genomics of Fish)
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