Sex Difference in Fish

Dear Colleagues,

“Sex is the queen of problems in evolutionary biology”. With over 36,000 recognized species, fish display all types of sexual dimorphism, including morphology, size, sex differentiation, gonadal development, behavior, physiological response, immunity, aquaculture value, and diverse reproductive strategies compared to other taxa. This great biological diversity makes fish one of the best resource libraries for studying these fascinating topics. Understanding sexual dimorphism in fish is crucial in biological and ecological studies. In particular, in the context of climate change, determining how the two sexes of fish cope with stressful environments, such as differences in survival, sex reversal (masculinization), and the resulting sex ratios, is vital for the protection of natural populations. The flexibility and diversity of sex determination and sex differentiation not only offer excellent opportunities to understand the origin and maintenance of sex in fish, but also produce mono-sex populations for aquaculture and research studies. Advances in genomics, transcriptomics, epigenomics, metabolomics, and other omics have added a vast amount of information with which to decode the differences between sexes.

This Special issue aims to serve as an up-to-date collection of the abovementioned topics. We are glad to solicit papers pertaining to original research and reviews that address studies including, but not limited to, the following:

• Sex differences in morphology, size, growth, survival, omics, and others;
• Sex determination, sex differentiation, and sex control;
• Gynogenesis, androgenesis, and self-fertilization;
• Development and utilization of sex-specific molecular markers;
• Gonadal development and reproduction;
• Abnormal gonadal development and sex identity disorder of sex-reversed fish;
• Hermaphroditism.

Dr. Zhigang Shen
Dr. Yan He
Dr. Weihua Hu
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. 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.

• sex difference
• sexual dimorphism
• sex determination
• sex differentiation
• sex control