title: Molecular cloning and expression of Ad4BP/SF-1 in the serial sex changing gobiid fish, Trimma okinawae.
abstract: Involvement of Ad4BP/SF-1 was investigated using the serial sex changing goby Trimma okinawae. First, a cDNA encoding Ad4BP/SF-1 was cloned from ovarian follicles. The open reading frame of goby Ad4BP/SF-1 encodes a protein of 489 amino acids. Ad4BP/SF-1 was expressed in gonadal tissues, brain, and kidney. Second, transcript levels of Ad4BP/SF-1 were measured in the ovary and testis of the same individuals. Expressions were related to sexual phases. Moreover, ovarian expression of Ad4BP/SF-1 increased during vitellogenesis and declined sharply during the post-vitellogenic period. Finally, the expression profile of Ad4BP/SF-1 was measured during serial sex change in the ovary. Ad4BP/SF-1 increased in parallel with the onset of the female-phase and decreased as female became male. Therefore, Ad4BP/SF-1 probably acts as an important indirect regulator of oocyte growth and maturation at female-phase of serial sex changing gobiid fish T. okinawae.
authors.affiliation: Sesoko Station, Tropical Biosphere Research Center, University of the Ryukyus, 3422 Sesoko, Motobu-cho, Okinawa 905-0227, Japan. yasu-cob@amber.plala.or.jp
authors.forename: Yasuhisa
authors.initials: Y
authors.lastname: Kobayashi
authors.forename: Tomoki
authors.initials: T
authors.lastname: Sunobe
authors.forename: Tohru
authors.initials: T
authors.lastname: Kobayashi
authors.forename: Masaru
authors.initials: M
authors.lastname: Nakamura
authors.forename: Norio
authors.initials: N
authors.lastname: Suzuki
authors.forename: Yoshitaka
authors.initials: Y
authors.lastname: Nagahama
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D003001:Cloning, Molecular; D018076:DNA, Complementary / Q000378:metabolism; D004268:DNA-Binding Proteins / Q000096:biosynthesis* / Q000235:genetics*; D005260:Female; D005399:Fishes; D005786:Gene Expression Regulation; D006066:Gonads / Q000033:anatomy & histology* / Q000378:metabolism; D057850:Hermaphroditic Organisms; D018398:Homeodomain Proteins; D008297:Male; D008969:Molecular Sequence Data; D016366:Open Reading Frames; D010053:Ovary / Q000378:metabolism; D012313:RNA / Q000378:metabolism; D012333:RNA, Messenger / Q000378:metabolism; D018160:Receptors, Cytoplasmic and Nuclear; D020133:Reverse Transcriptase Polymerase Chain Reaction; D017422:Sequence Analysis, DNA; D019849:Sex Determination Processes; D013045:Species Specificity; D054339:Steroidogenic Factor 1; D013737:Testis / Q000378:metabolism; D014018:Tissue Distribution; D014157:Transcription Factors / Q000096:biosynthesis* / Q000235:genetics*; D014158:Transcription, Genetic
chemical_list: D018076:DNA, Complementary; D004268:DNA-Binding Proteins; D018398:Homeodomain Proteins; D012333:RNA, Messenger; D018160:Receptors, Cytoplasmic and Nuclear; D054339:Steroidogenic Factor 1; D014157:Transcription Factors; D012313:RNA