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Overexpression of Anti-müllerian Hormone Gene Affects Gonad Sex Differentiation in Undifferentiated Orange-Spotted Groupers (). | LitMetric

Overexpression of Anti-müllerian Hormone Gene Affects Gonad Sex Differentiation in Undifferentiated Orange-Spotted Groupers ().

Front Endocrinol (Lausanne)

State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory for Aquatic Economic Animals and Guangdong Provincial Engineering Technology Research Center for Healthy Breeding of Important Economic Fish, School of Life Sciences, Sun Yat-Sen University, Guangzhou, China.

Published: April 2019

AI Article Synopsis

Article Abstract

Sex differentiation in teleost fishes occurs in response to sex determination signals, which induce the gonad to develop as either an ovary or testis. However, sex differentiation mechanisms in fishes are diverse, and information on gonad differentiation in sex changing fishes remains limited. The orange-spotted grouper () is a protogynous hermaphroditic fish that provides an ideal model for investigating gonad differentiation in vertebrates. In this study, Transcriptome data showed that expression levels of and in gonads were increased during sex differentiation. Then we investigated the effect of overexpression anti-Müllerian hormone (Amh) on gonad development in juvenile orange-spotted groupers. Expression levels of female-related genes and serum 17β-estradiol levels were decreased, while expression of male-related genes and serum 11-ketotestosterone levels were increased in fish fed with -plasmid. Overexpression of Amh was also promoted the spermatogonia proliferation and induced the development of male gonads in undifferentiated orange-spotted groupers, but that this male tendency was preceded by female differentiation. In summary, these results illustrated that Amh overexpression by -plasmid feeding induced male gonad development in undifferentiated groupers.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6459890PMC
http://dx.doi.org/10.3389/fendo.2019.00210DOI Listing

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