Reproductive Characteristics of Precociously Mature Triploid Male Masu Salmon, Oncorhynchus masou
スポンサーリンク
概要
- 論文の詳細を見る
In order to clarify the reproductive characteristics of triploid males, changes in serum steroid hormone levels and testicular development in precociously mature triploid males of masu salmon, Oncorhynchus masou, were examined during sexual maturation. Testicular development in triploids differs from that in diploids. The gonadosomatic index (GSI) in triploids in August was high (3.9%), similar to that in diploids (3.0%). Although germ cells at all stages of spermatogenesis were observed in the testes of diploids, the testes of triploids consisted of many cysts of primary spermatocytes and some degenerating germ cells. In the spawning season in October, GSI in triploids dropped suddenly (1.0%), though GSI in diploids increased (4.8%). At that time, a large number of degenerating figures of spermatogenic germ cells were found in the testes of triploids. Very few sperm were seen in the sperm fluid. However, most of the sperm cells revealed abnormalities in morphology, such as two tails, two heads, and heads of various sizes. Changes in serum testosterone (T), 11-ketotestosterone (11-KT) and 17α, 20β-dihydroxy-4-pregnen-3-one (17α, 20β-diOH) in triploid males were similar to those in mature diploid males. T and 11-KT levels were high in August and October, then they dropped in November after the spawning season. 17α, 20β-DiOH levels in both triploid and diploid males were only high in October during the spawning season. From these results, it seems likely that the cause of abnormality of spermatogenesis in triploid males is mechanical difficulty involved in chromosome separation at meiosis I due to triploidy per se, rather than the reduced levels of testicular steroid hormones.
- 社団法人日本動物学会の論文
- 1993-02-15
著者
-
NAKAMURA Masaru
Department of Computer Science and Engineering, Nagoya Institute of Technology
-
Tsuchiya Fumio
Niigata Prefecture Inland Water Fisheries Experimental Station
-
Nagahama Yoshitaka
Laboratory Of Reproduction National Institute For Basic Biology
-
Iwahashi Masao
Niigata Prefecture Inland Water Fisheries Experimental Station
-
Nakamura Masaru
Department Of Basic Life Science Faculty Of Medicine Teikyo University
-
Nakamura Masaru
Department Of Applied Chemistry Faculty Of Science And Engineering Kinki University
関連論文
- Details of the Nitech HMM-Based Speech Synthesis System for the Blizzard Challenge 2005(Speech and Herring)
- Tissue-specific Expression of Rhamnose-binding Lectins in the Steelhead Trout (Oncorhynchus mykiss)(Biochemistry & Molecular Biology)
- Promoter Activity and Chromosomal Location of the Rana rugosa P450 Aromatase (CYP19) Gene(Reproductive Biology)
- GONADOTROPIN RECEPTORS OF TWO TELEOST FISHES, AMAGO SALMON (ONCORHYNCHUS RHOSURUS) AND TILAPIA (OREOCHROMIS NILOTICUS) : cDNA CLONING AND EXPRESSION DURING OOCYTE DEVELOPMENT
- MOLECULAR CLONING OF GLYCOPROTEIN HORMONE RECEPTOR FAMILY FROM MEDAKA OVARY
- ラットSKD3 cDNAのクローニングと精巣におけるSKD3の発現
- Exogenous Expression of Interferon-β in Cultured Brain Microvessel Endothelial Cells(Biochemistry/Molecular Biology)
- Expression and Visualization of a Human Interferon-β-Enhanced Green Fluorescent Protein Chimeric Molecule in Cultured Cells (Biochemistry/Molecular Biology)
- IN VITRO SPERMATOGENESIS IN FISH OVARY(Endocrinology,Abstracts of papers presented at the 74^ Annual Meeting of the Zoological Society of Japan)
- Dax1 REGULATES EXPRESSION OF P450arom IN MEDAKA FOLLICLES(Endocrinology,Abstracts of papers presented at the 76^ Annual Meeting of the Zoological Society of Japan)
- CLONING AND ANALYSIS OF GONADAL EXPRESSION OF TESTICULAR TYPE SOX9 IN THE MEDAKA, ORYZIAS LATIPES(Developmental Biology,Abstracts of papers presented at the 75^ Annual Meeting of the Zoological Society of Japan)
- ORIGIN OF DMY, A SEX-DETERMINING GENE OF THE MEDAKA, ORYZIAS LATIPES(Genetics,Abstracts of papers presented at the 74^ Annual Meeting of the Zoological Society of Japan)
- DMY INDUCE MALE DEVELOPMENT IN XX TRANSGENIC MEDAKA FISH(Endocrinology &Genetics,Abstracts of papers presented at the 74^ Annual Meeting of the Zoological Society of Japan)
- Oryzias curvinotus Has DMY, a Gene That Is Required for Male Development in the Medaka, O. latipes(Developmental Biology)
- A STRAIN HAVING A ZZ/ZW SEX DETERMINATION SYSTEM DERIVED FROM A NATURALLY OCCURRING RECESSIVE MUTATION IN THE MEDAKA, ORYZIAS LATIPES(Genetics)(Proceedings of the Seventy-Third Annual Meeting of the Zoological Society of Japan)
- MUTATIONS AFFECTING SEX DETERMINATION OR DIFFERENTIATION FROM WILD POPULATIONS OF THE MEDAKA, ORYZIAS LATIPES(Genetics)(Proceedings of the Seventy-Third Annual Meeting of the Zoological Society of Japan)
- EXPRESSION OF DMY IN MEDAKA GONAD DURING EARLY TESTICULAR DEVELOPMENT(Developmental Biology)(Proceedings of the Seventy-Third Annual Meeting of the Zoological Society of Japan)
- Construction of BAC libraries derived from the ascidian Ciona intestinalis
- Construction of a BAC library derived from the inbred Hd-rR strain of the teleost fish, Oryzias latipes
- Hormonal induction of all stages of spermatogenesis in germ-somatic cell coculture from immature Japanese eel testis
- Acquisition of Potential for Sperm Motility in vitro in Japanese Eel Anguilla japonica
- Human Recombinant Activin Induces Proliferation of Spermatogonia in vitro in the Japanese Eel Anguilla japonica
- Gonadal structure and P450scc and 3β-HSD immunoreactivity in the gobiid fish Trimma okinawae during bidirectional sex change
- EXPRESSION OF GONADOTROPIN RECEPTORS IN THE SERIAL SEX CHANGING GOBY, TRIMMA OKINAWAE(Endocrinology,Abstracts of papers presented at the 75^ Annual Meeting of the Zoological Society of Japan)
- Characterization of Two Types of Cytochrome P450 Aromatase in the Serial-sex Changing Gobiid Fish, Trimma okinawae
- EXPRESSION OF AD4BP/SF-1 IN RED-SPOTED DWARF GOBY, TRIMMA OKINAWAE, DURING MULTI-SEX CHANGE(Endocrinology,Abstracts of papers presented at the 74^ Annual Meeting of the Zoological Society of Japan)
- MOLECULAR INTERACTION BETWEEN PROGESTOGEN AND ANDROGENS VIA PROGESTOGEN RECEPTOR IN JAPANESE EEL (ANGUILLA JAPONICA)(Endocrinology,Abstracts of papers presented at the 74^ Annual Meeting of the Zoological Society of Japan)
- DYNAMICS OF CELL CYCLE RELATED GENES AFTER HORMONAL INDUCTION OF SPERMATOGENESIS IN THE JAPANESE EEL, ANGUILLA JAPONICA(Cell Biology and Morphology & Developmental Biology,Abstracts of papers presented at the 74^ Annual Meeting of the Zoological Socie
- UP- AND DOWN-REGULATED GENES AFTER THE INDUCTION OF XY SEX-REVERSAL BY ESTROGENS IN A TELEOST, TILAPIA, OREOCHROMIS NILOTICUS(Developmental Biology)(Proceedings of the Seventy-Third Annual Meeting of the Zoological Society of Japan)
- TWO TYPES OF P450 AROMATASE DURING SERIAL ADULT SEX CHANGE IN GOBIID FISH Trimma okinawae : cDNA ISOLATION AND mRNA EXPRESSION
- COMPARISON OF THE LIGAND SPECIFICITY OF PROGESTOGEN RECEPTORS α AND β
- DIFFERENTIATION OF GERM CELL-SUPPORTING CELLS INTO SERTOLI CELLS DURING TESTICULAR DIFFERENTIATION IN A TELEOST, TILAPIA(Developmental Biology)(Proceeding of the Seventy-Third Annual Meeting of the Zoological Society of Japan)
- DYNAMICS OF CELL CYCLE RELATED GENES AFTER HORMONAL INDUCTION OF SPERMATOGENESIS IN THE MALE JAPANESE EEL, ANGUILLA JAPONICA(Developmental Biology)(Proceeding of the Seventy-Third Annual Meeting of the Zoological Society of Japan)
- The vasa-like gene, olvas, identifies the migration path of primordial germ cells during embryonic body formation stage in the medaka, Oryzias latipes
- CLONING OF cDNA ENCODING SUBTYPES OF MEMBRANE PROGESTIN RECEPTOR (mPR) FROM GOLDFISH OVARY AND EXPRESSION ANALYSIS OF CLONED GENE(Developmental Biology,Abstracts of papers presented at the 76^ Annual Meeting of the Zoological Society of Japan)
- Reconstitution of Sperm Nuclei of Zebrafish (Danio rerio) in Xenopus Egg Extracts
- Cloning of cDNA Encoding Thimet Oligopeptidase from Xenopus Oocytes and Regulation of the mRNA During Oogenesis(Molecular Biology)
- Molecular cloning of cDNA encoding a 20S proteasome 2 subunit from goldfish (Carassius auratus) and its expression analysis
- Involvement of 26S Proteasome in Oocyte Maturation of Goldfish Carassius auratus
- SEX REVERSAL BY AROMATASE INHIBITOR TREATMENT IN THE PROTOGYNOUS WRASSE, HALICHOERES TRIMACULATUS(Endocrinology)(Proceedings of the Seventy-Third Annual Meeting of the Zoological Society of Japan)
- EXPRESSION OF ESTROGEN RECEPTORS AND STEROIDOGENIC ENZYMES DURING GONADAL DIFFERENTIATION IN A TELEOST FISH, TILAPIA NIROTICUS(Developmental Biology)(Proceedings of the Seventieth Annual Meeting of the Zoological Society of Japan)
- Fish 3β-Hydroxysteroid Dehydrogenase/Δ^5-Δ^4 Isomerase : Antibody Production and Their Use for the Immunohistochemical Detection of Fish Steroidogenic Tissues
- EXPRESSION OF STEROIDOGENIC ENZYME mRNAS IN OVARIAN FOLLICLE OF RAINBOW TROUT, ONCORHYNCHUS MYKISS
- The Sox gene family and its expression during embryogenesis in the teleost fish, medaka (Oryzias latipes)
- Structure and Promoter Analysis of the Cytochrome P-450 Aromatase Gene of the Teleost Fish, Medaka (Oryzias latipes)
- Immunocytochemical and Ultrastructural Identification of Pituitary Cell Types in the Protogynous Thalassoma duperrey during Adult Sexual Ontogeny
- Regulation of Tissue-Type Plasminogen Activator(tPA)and Type-1 Plasminogen Activator Inhibitor(PAI-1)Gene Expression in Rat Hepatocytes in Primary Culture^1
- A Facile Preparation and Properties of (2E, 4E, 6E, 8E)-1-(3-Guaiazulenyl)-3, 7-dimethyl-9-(2, 6, 6-trimethyl-1-cyclohexen-1-yl)-2, 4, 6, 8-nonatetraen-1-ylium Hexafluorophosphate
- Molecular Cloning of Estrogen Receptors α and β in the Ovary of A Teleost Fish, the Tilapia (Oreochromis niloticus)(Endocrinology)
- PROTEOME ANALYSIS OF MEDAKA OOCYTES : STUDIES OF ACQUISITION OF MATURATIONAL COMPETENCE AND SIGNAL TRANSDUCTION OF OOCYTE MATURATION(Developmental Biology)(Proceedings of the Seventy-Third Annual Meeting of the Zoological Society of Japan)
- Regulation of oocyte maturation in fish
- CHARACTERIZATION OF UPSTREAM REGULATORY REGION OF DMRT1 IN MEDAKA FISH, ORYZIAS LATIPES(Developmental Biology,Abstracts of papers presented at the 74^ Annual Meeting of the Zoological Society of Japan)
- HORMONAL ACTIVITY OF SYNTHETIC GONAD-STIMULATING SUBSTANCE (GSS) WHICH IS A GONADOTROPIN OF STARFISH, ASTERINA PECTINIFERA(Endocrinology,Abstracts of papers presented at the 76^ Annual Meeting of the Zoological Society of Japan)
- EFFECTS OF A SYNTHETIC STARFISH GONAD-STIMULATING SUBSTANCE (GSS) AND NERVE EXTRACTS ON HOLOTHURIAN OOCYTE MATURATION
- CLONING AND ANALYSIS OF A STARFISH GONAD-STIMULATING SUBSTANCE (GSS) GENE
- PURIFICATION OF GONAD-STIMULATING SUBSTANCE (GSS) FROM STARFISH(Endocrinology,Abstracts of papers presented at the 75^ Annual Meeting of the Zoological Society of Japan)
- Inhibitory Effect of a SALMFamide Neuropeptide on Secretion of Gonad-Stimulating Substance from Radial Nerves in the Starfish Asterina pectinifera(Reproductive Biology)
- INHIBITION OF GONAD-STIMULATING SUBSTANCE SECRETION FROM RADIAL NERVES OF STARFISH ASTERINA PECTINIFERA BY SALMFAMIDE-1(Endocrinology,Abstracts of papers presented at the 74^ Annual Meeting of the Zoological Society of Japan)
- MOLECULAR CLONING OF MEDAKA MEMBRANE PROGESTIN RECEPTORS(Developmental Biology,Abstracts of papers presented at the 74^ Annual Meeting of the Zoological Society of Japan)
- Cloning and Expression of Estrogen Receptors in the Protandrous Black Porgy (Acanthopagrus schlegeli) : Implications of Sex Change Mechanism
- EFFECT OF NEUROPEPTIDE SALMFamide-1 ON OOCYTE MATURATION OF STARFISH ASTERINA PECTINIFERA
- ON THE CHANGE OF THE EGG ENVELOPE AFTER FERTILIZATION IN MEDAKA EGGS(Developmental Biology)(Proceedings of the Seventy-Third Annual Meeting of the Zoological Society of Japan)
- Role of Ecto-ATP Diphosphohydrolase in Ovarian Follicle Cells of the Starfish Asterina pectinifera(Reproductive Biology)(Origin and evolution of chordates)
- EXPRESSION OF DMY-EGFP AND DMRT1-DsRed TRANSGENE DURING GONADAL DEVELOPMENT IN THE MEDAKA, ORYZIAS LATIPES(Genetics,Abstracts of papers presented at the 76^ Annual Meeting of the Zoological Society of Japan)
- FUNCTIONAL ANALYSES OF THE SEX-DETERMINING GENE (DMY, DM DOMAIN GENE ON THE Y CHROMOSOME) IN THE TELEOST MEDAKA, ORYZIAS LATIPES(Genetics,Abstracts of papers presented at the 76^ Annual Meeting of the Zoological Society of Japan)
- Induction of Spermatogenesis in Male Japanese Eel, Anguilla japonica, by a Single Injection of Human Chorionic Gonadotropin(Endocrinology)
- Terminal Phase Males Stimulate Ovarian Function and Inhibit Sex Change in the Protogynous Wrasse Thalassoma duperrey(Reproductive Biology)
- Immunological Detection and Characterization of Poly(A) Polymerase, Poly(A)-Binding Protein and Cytoplasmic Polyadenylation Element-Binding Protein in Goldfish and Xenopus Oocytes
- Production of the Oocyte Maturation-Inducing Substance of Starfish by Heat Treatment of S-Adenosylmethionine
- Change in the levels of adenine-related compounds in starfish ovarian follicle cells following treatment with gonad-stimulating substance
- A study of the sex ratio and fin morphometry of the Thai medaka, Oryzias minutillus, inhabiting suburbs of Bangkok, Thailand
- ROLE OF ESTROGENS DURING GONADAL SEX DIFFERENTIATION IN A TELEOST FISH, NILE TILAPIA (OREOCHROMIS NILOTICUS) : EVIDENCE THAT ESTROGENS ARE REQUIRED FOR OOGONIAL PROLIFERATION
- FISH OVARY : FROM SEX DETERMINATION AND DIFFERENTIATION TO OOCYTE MATURATION
- SEX STEROID HORMONES ARE INVOLVED IN THE REGULATION OF GAMETOGENESIS IN TELEOST FISHES
- Development of the Tissue Architecture in the Gonads of the Medaka Oryzias latipes(Developmental Biology)
- Energy Metabolism of Sea Urchin Spermatozoa : An Approach Based on Echinoid Phylogeny
- Cloning and expression of medaka cholesterol side chain cleavage cytochrome P450 during gonadal development
- Prolactin Induces Protamine 2mRNA Expression in Rat Testis
- The Ultrastructures of Atypical and Anaplastic Meningiomas
- Ultrastructural Study of Endogenous Energy Substrates in Spermatozoa of the Sea Urchins Arbacia lixula and Paracentrotus lividus
- Somatic Lamins in Germinal Vesicles of Goldfish (Carassius auratus) Vitellogenic Oocytes
- Behavioural Studies on Schooling of Fishes II : Leading-Following Relationship of the Immature Yellowtail, Seriola quinqueradiata Temminck et Schlegel in Captivity
- Phosphatidylcholine Is an Endogenous Substrate for Energy Metabolism in Spermatozoa of Sea Urchins of the Order Echinoidea
- Organization of Cytoplasmic Microtubules during Maturation of Goldfish Oocytes
- Reproductive Characteristics of Precociously Mature Triploid Male Masu Salmon, Oncorhynchus masou
- The in vitro Effects of Cyclic Nucleotides on Prostaglandin-Induced Ovulation of Goldfish (Carassius auratus)(Endocrinology)
- Mechanism of Gonadotropic Control of Steroidogenesis in the Teleost Ovarian Follicle
- Regulation of Gametogenesis in Teleosts : THE ZOOLOGICAL SOCIETY PRIZE : Abstracts of papers read by the Zoological Society Prize winners
- Innervation of Steroid-Producing Cells in the Ovary of Tilapia Oreochromis niloticus
- HORMONAL REGULATION OF OOCYTE MATURATION IN TELEOSTS AND STARFISH : COMPARATIVE TO GENERAL
- Studies of the Conditioned Reflex of Fish in Groups : II. Conditioned Reflex in Two Groups of Goldfish, Carassius auratus
- Studies of the Conditioned Reflex of Fish in Groups I : Relationship between the Conditioning Speed of Individuals and the Status in Social Hierarchy in a Group of Swordtails, Xiphophorus helleri
- ESTROGENS ARE REQUIRED FOR OVARIAN DIFFERENTIATION AND OOGONIAL PROLIFERATION IN A TELEOST FISH, TILAPIA (OREOCHROMIS NILOTICUS)
- GATA4 is Involved in the Gonadal Development and Maturation of the Teleost Fish Tilapia, Oreochromis niloticus
- Significant Correlation between Chromosomal Aberration and Nuclear Morphology in Urothelial Carcinoma
- Metabolic Effects of Sodium Valproate on Atypical Antipsychotics in Japanese Psychotic Patients
- Duloxetine-induced Hyponatremia in the Elderly