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Neuroanatomy of a sex changing fish: the New Zealand spotty wrasse (Notolabrus celidotus) brain atlas
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Abstract
For most vertebrates, sexual fate is genetically determined and remains fixed throughout life. However, for some teleost fishes sex is more plastic. Significant progress has been made in characterising
the cellular and molecular processes that underpin gonadal sex change. The brain-mediated mechanisms that underlie and initiate this transformation, however, remain poorly understood. One reason
for this is the current lack of a neuroanatomical reference work for sex changing fishes. Here, we present a brain atlas for the New Zealand (NZ) spotty wrasse (Notolabrus celidotus), developed from
10 wild caught specimens (2 male and 8 female). From each fish, coronal cryosections were collected and stained with cresyl violet solution. Photomicrographs were taken of each section using an
inverted bright field microscope and 3D reconstructions were rendered of each brain for annotation and volumetric comparison of specific brain regions. The brain atlas describes the general features
of the NZ spotty wrasse brain as well as its specificities. This atlas provides the necessary foundation for further investigation of the brain mechanisms driving protogyny in this species.
Type
Journal Article
Type of thesis
Series
Citation
Kamstra, K., van der Burg, C., Quertermous, H. M., Muncaster, S., Todd, E. V., Jasoni, C. L., Brown, C., & Gemmell, N. J. (2024). Neuroanatomy of a sex changing fish: the New Zealand spotty wrasse (Notolabrus celidotus) brain atlas. New Zealand Journal of Zoology, 51(2), 228-239. https://doi.org/10.1080/03014223.2023.2216939
Date
2024-06-15
Publisher
Informa UK Limited
Degree
Supervisors
Rights
Attribution-NonCommercial-NoDerivatives 4.0 International