Sex change in coral reef fish |
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Authors: | Masaru Nakamura Yasuhisa Kobayashi Saori Miura Mohamad Ashraful Alam Ramji Kumar Bhandari |
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Institution: | (1) Sesoko Station, Tropical Biosphere Research Center, University of the Ryukyus, Sesoko 3422, Motobu-cho Okinawa, 907-0227, Japan;(2) CREST & SORST, Japan Science and Technology Corporation, Saitama Kawaguchi 332-0012, Japan;(3) National Institute for Basic Biology, Okazaki 444-8585, Japan |
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Abstract: | Gonadal differentiation can take many forms in fish, ranging from gonochorism, where individuals directly develop as male
or female and finally possess only testis or ovaries at sexual maturation, to hermaphroditism where the same individuals can
produce mature male and female gametes at some time in their lives. Hermaphrodite fish are, thus, an excellent model for studying
the plasticity of sex determination and differentiation in vertebrates. We have shown that sex steroids play a principal role
in sex differentiation and sex change in fish. Our laboratory implements several fish models that undergo sex change from
female to male or male to female or in both directions. In this review, we will briefly discuss recent advances in our understanding
of the mechanism of sex change in coral reef fish. |
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Keywords: | Sex change Estrogen Tropical fish Protogynous sex change Protandrous sex change Serial sex change |
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