Sex Change In Coral Reef Fish

Fish Physiol Biochem (2005) 31:117122 DOI 10.1007/s10695-006-7595-x RESEARCH ARTICLE finish up adjustment in chromatic reef ?sh Masaru Nakamura Æ Yasuhisa Kobayashi Æ Saori Miura Æ Mohamad Ashraful Alam Æ Ramji Kumar Bhandari Ã" Springer intuition+ production line Media B.V. 2006 Abstract Gonadal speciality plunder take many forms in ?sh, ranging from gonochorism, where individuals directly develop as male or young-bearing(prenominal) and ?nally possess only testis or ovaries at internal maturation, to hermaphroditism where the same individuals can puzzle mature male and egg-producing(prenominal) gametes at several(prenominal) metre in their lives. Hermaphrodite ?sh are, thus, an excellent model for poring over the plasticity of hinge upon determination and differentiation in vertebrates. We have shown that raise steroids play a principal role in agitate differentiation and trip switch over in ?sh. Our science lab implements some(pren ominal) ?sh models that undergo trip out transmute from female to male or male to female or in both directions. In this review, we will brie?y discuss new advances in our appreciation of the mechanism of sex mixed bag in coral reef ?sh. M. Nakamura (&) Æ Y. Kobayashi Æ S. Miura Æ M. A. Alam Sesoko Station, tropic Biosphere Research Center, University of the Ryukyus, Sesoko 3422, Motobu-cho, Okinawa 907-0227, japan e-mail: masaru@lab.u-ryukyu.ac.jp M.

Nakamura big top & SORST, Japan Science and Technology Corporation, Saitama Kawaguchi 332-0012, Japan R. K. Bhandari National lend for Basic Biology, Okazaki 444-8585 , Japan Keywords Sex variety Æ Estroge! n Æ Tropical ?sh Æ Protogynous sex tilt Æ Protandrous sex alternate Æ Serial sex change In addition to gonochorism, ?sh exhibit several types of hermaphroditism. Individuals of some ?shes have gonads containing both mature ovary and mature testis. well-nigh ?shes change sex from male to female (protandrous sex change), others change from female to male (protogynous sex change), and a few can change sex either way and multiple times (serial sex change). In...If you motive to get a full essay, order it on our website: BestEssayCheap.com

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