Satoshi Ansai

The paper compares scRNA-seq and snRNA-seq in Praesagittifera naikaiensis, finding snRNA-seq better recovers neural transcripts and reduces symbiont reads.

This study shows that spiny-ray development in fish is independent of actinotrichia, enabling morphological diversification through osteoblast distribution and signaling molecule intensity.

The paper develops a transgenic medaka strain for whole brain calcium imaging and demonstrates its use in detecting neural activity responses to stimuli.

MedakaBase provides a centralized platform for genomic resources and analysis tools for medaka fish, including gene models and omics data for multiple Oryzias species.

This study identifies phod1 as a gene regulating seasonal energy metabolism via the growth hormone pathway in Japanese medaka fish.

This study shows that Hedgehog signaling repression in teleosts reduces radial bones and promotes fin elaboration by affecting specific skeletal regions in zebrafish.

This study examines how rapid body colouration changes in Oryzias celebensis relate to aggressive behavior during male-male competition, finding that blackened markings signal aggression and deter attacks.

This study identifies a specialized Ran-GTP-driven spindle structure in medaka embryos that ensures accurate chromosome segregation during early cleavage divisions.

This study shows Wnt4a is essential for genital duct elongation in medaka but not for gonadal sex differentiation, suggesting homology between mouse Mullerian ducts and teleost genital ducts.

This study introduces a method to control medaka behavior using optogenetics with channelrhodopsin, showing light-induced movements in embryos, larvae, and adults.

This paper identifies a medaka mutant with congenital intestinal atresia, linking Mypt1 dysfunction to actomyosin dysregulation and epithelial disorganisation.

The paper presents a high-quality draft genome assembly of Oryzias javanicus, focusing on its adaptation to salinity.

This study shows that neuropeptide B mediates female sexual receptivity in medaka fish in a female-specific and reversible manner through estrogen-dependent regulation.