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Functional characterization of visual opsin repertoire in Medaka (Oryzias latipes).
A variety of visual pigment repertoires present in fish species is believed due to the great variation under the water of light environment. A complete set of visual opsin genes has been isolated and… Expand
A detailed linkage map of medaka, Oryzias latipes: comparative genomics and genome evolution.
We mapped 633 markers (488 AFLPs, 28 RAPDs, 34 IRSs, 75 ESTs, 4 STSs, and 4 phenotypic markers) for the Medaka Oryzias latipes, a teleost fish of the order Beloniformes. Linkage was determined using… Expand
Evolution of Receptors for Growth Hormone and Somatolactin in Fish and Land Vertebrates: Lessons from the Lungfish and Sturgeon Orthologues
Two cognate hormones, growth hormone (GH) and somatolactin (SL), control several important physiological processes in vertebrates. Knowledge about GH and its receptor (GHR) has accumulated over the… Expand
Medaka Receptors for Somatolactin and Growth Hormone: Phylogenetic Paradox Among Fish Growth Hormone Receptors
Somatolactin (SL) in fish belongs to the growth hormone/prolactin family. Its ortholog in tetrapods has not been identified and its function(s) remains largely unknown. The SL-deficient mutant of… Expand
Mutations in the gene encoding B, a novel transporter protein, reduce melanin content in medaka
Pigmentation of the skin is of great social, clinical and cosmetic significance. Several genes that, when mutated, give rise to altered coat color in mice have been identified; their analysis has… Expand
Distinctive distribution of AIM1 polymorphism among major human populations with different skin color
- K. Nakayama, S. Fukamachi, H. Kimura, Y. Koda, A. Soemantri, T. Ishida
- Medicine, Biology
- Journal of Human Genetics
AbstractThe genetic background for human skin color has been a major topic in human genetics; however, its molecular basis is still unclear. The gene for the AIM-1 protein (AIM1) was recently found… Expand
A Microsatellite-Based Genetic Linkage Map of the Cichlid Fish, Astatotilapia burtoni (Teleostei): A Comparison of Genomic Architectures Among Rapidly Speciating Cichlids
Cichlid fishes compose an astonishingly large number of species and formed species flocks in record-breaking time. To facilitate efficient genome scans and comparisons of cichlid genomes, we… Expand
Sex-Linked Inheritance of the lf Locus in the Medaka Fish (Oryzias latipes)
Abstract The lf (leucophore free) locus was previously reported autosomal recessive in the medaka fish (Oryzias latipes). However, extensive linkage analyses in this study using various strains… Expand
Altered expressions of glutamate transporter subtypes in rat model of neonatal cerebral hypoxia-ischemia.
- S. Fukamachi, A. Furuta, +4 authors T. Iwaki
- Biology, Medicine
- Brain research. Developmental brain research
- 31 December 2001
Glutamate transporters are essential for maintaining the extracellular levels of glutamate at synaptic clefts and are regulated developmentally in a subtype-specific manner. We investigated… Expand
Somatolactin selectively regulates proliferation and morphogenesis of neural-crest derived pigment cells in medaka.
- S. Fukamachi, M. Sugimoto, H. Mitani, A. Shima
- Medicine, Biology
- Proceedings of the National Academy of Sciences…
- 20 July 2004
Species-specific colors and patterns on animal body surfaces are determined primarily by neural-crest-derived pigment cells in the skin (chromatophores). However, even closely related species display… Expand