Green light irradiation during sex differentiation induces female-to-male sex reversal in the medaka Oryzias latipes

被引：24
|
作者：
Hayasaka, Oki [1 ]
Takeuchi, Yutaka [1 ,2 ]
Shiozaki, Kazuhiro [1 ,2 ]
Anraku, Kazuhiko [1 ,2 ]
Kotani, Tomonari [1 ,2 ]
机构：
[1] Kagoshima Univ, United Grad Sch Agr Sci, Kagoshima 8900056, Japan
[2] Kagoshima Univ, Fac Fisheries, Kagoshima 8900056, Japan
来源：
SCIENTIFIC REPORTS | 2019年 / 9卷 / 1期
基金：
日本学术振兴会;
关键词：
HIGH-TEMPERATURE; GERM-CELL; FISH; CORTISOL; STRESS; GROWTH; MANIPULATION; PHOTOPERIOD; EXPRESSION; EVOLUTION;
D O I：
10.1038/s41598-019-38908-w
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
This study investigated whether irradiation of a specific light wavelength could affect the sex differentiation of fish. We first found that the photoreceptor genes responsible for receiving red, green, and ultraviolet light were expressed in the eyes of medaka during the sex differentiation period. Second, we revealed that testes developed in 15.9% of genotypic females reared under green light irradiation. These female-to-male sex-reversed fish (i.e. neo-males) showed male-specific secondary sexual characteristics and produced motile sperm. Finally, progeny tests using the sperm of neo-males (XX) and eggs of normal females (XX) revealed that all F1 offspring were female, indicating for the first time in animals that irradiation with light of a specific wavelength can trigger sex reversal.
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页数：8
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