Chie Umatani

This study shows that ovulation is essential for female sexual receptivity in medaka, and progesterone signaling in specific brain regions synchronizes sexual behavior with the ovulatory cycle.

This study identifies agrp1 as a key regulator of breeding season-dependent feeding behavior in female medaka by linking ovarian estrogenic signals to increased food intake.

This study establishes in vitro and in vivo gene introduction methods in cloudy catshark embryos and adult testis using electroporation and baculovirus, enabling genetic manipulation in cartilaginous fishes.

The paper shows that balanced release of NPFF and GnRH in TN-GnRH neurons modulates male sexual behavior in medaka, with double knockout showing normal behavior.