Functional Sex Reversal in Adult Gonochoristic Teleosts is Mediated by Ovarian Germline Stem Cell Plasticity and Somatic Cell Transdifferentiation
6 affiliations
- 1Zhejiang Marine Fisheries Research Institute Zhoushan China
- 2Zhejiang Ocean University Zhoushan China
- 3Zhoushan Field Comprehensive Scientific Observation and Research Station Ministry of Agriculture and Rural Affairs Zhoushan China
- 4School of Marine Sciences Ningbo University Ningbo China
- 5School of Life Sciences Nanchang University Nanchang China
- 6Department of Molecular and Cell Biology and Biochemistry Brown University Providence Rhode Island USA
Abstract
Sexual fate in vertebrates is generally considered developmentally fixed; however, teleost fishes exhibit remarkable flexibility in their reproductive systems. It remains unclear whether a fully differentiated gonochoristic vertebrate can undergo complete and functional sex reversal, or what molecular mechanisms could drive such reprogramming. Here, using the yellow drum (Nibea albiflora), a complete and functional female‐to‐male sex reversal is demonstrated in adulthood through three key mechanisms: (1) oocytes serve as guardians in the maintenance of ovarian fate, (2) ovarian germline stem cells retain spermatogenic potential and can produce sperm, and (3) ovarian somatic cells undergo complete transdifferentiation from granulosa/theca to Sertoli/Leydig lineages. This work provides the first evidence of functional female‐to‐male sex reversal in adult gonochoristic vertebrates, challenging existing paradigms about sexual fate fixation. Furthermore, these findings establish a novel experimental system for investigating vertebrate sexual plasticity and create a broadly representative model for sexual manipulation in teleost fishes.
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BibTeX
@article{yang2026functional,
title = {{Functional Sex Reversal in Adult Gonochoristic Teleosts is Mediated by Ovarian Germline Stem Cell Plasticity and Somatic Cell Transdifferentiation}},
author = {Yang Yang and Liechao Yu and Wanchang Zhang and Gary Wessel and Ruiyi Chen and Weihua Hu and Dongdong Xu},
journal = {Advanced Science},
year = {2026},
month = aug,
doi = {10.1002/advs.77027},
url = {https://doi.org/10.1002/advs.77027},
note = {CC BY 4.0},
}
RIS
TY - JOUR
TI - Functional Sex Reversal in Adult Gonochoristic Teleosts is Mediated by Ovarian Germline Stem Cell Plasticity and Somatic Cell Transdifferentiation
AU - Yang Yang
AU - Liechao Yu
AU - Wanchang Zhang
AU - Gary Wessel
AU - Ruiyi Chen
AU - Weihua Hu
AU - Dongdong Xu
PY - 2026
DA - 2026/08/15
JO - Advanced Science
DO - 10.1002/advs.77027
UR - https://doi.org/10.1002/advs.77027
AB - Sexual fate in vertebrates is generally considered developmentally fixed; however, teleost fishes exhibit remarkable flexibility in their reproductive systems. It remains unclear whether a fully differentiated gonochoristic vertebrate can undergo complete and functional sex reversal, or what molecular mechanisms could drive such reprogramming. Here, using the yellow drum (Nibea albiflora), a complete and functional female‐to‐male sex reversal is demonstrated in adulthood through three key mechanisms: (1) oocytes serve as guardians in the maintenance of ovarian fate, (2) ovarian germline stem cells retain spermatogenic potential and can produce sperm, and (3) ovarian somatic cells undergo complete transdifferentiation from granulosa/theca to Sertoli/Leydig lineages. This work provides the first evidence of functional female‐to‐male sex reversal in adult gonochoristic vertebrates, challenging existing paradigms about sexual fate fixation. Furthermore, these findings establish a novel experimental system for investigating vertebrate sexual plasticity and create a broadly representative model for sexual manipulation in teleost fishes.
SN - 2198-3844
ER -