Expression of dmrt1 and sox9 during gonadal development in the Siberian sturgeon (Acipenser baerii)
| Autor: | Julio Berbejillo, Denise Vizziano-Cantonnet, Gabriela Bedó, Anabel Martinez-Bengochea |
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| Rok vydání: | 2011 |
| Předmět: |
Male
endocrine system medicine.medical_specialty Gonad Physiology Aquatic Science Biology Biochemistry Polymerase Chain Reaction Andrology Sturgeon Internal medicine Gene expression medicine Animals Sexual Maturation Gonads Sex Characteristics Sexual differentiation Gene Expression Profiling Fishes Gene Expression Regulation Developmental SOX9 Transcription Factor General Medicine Acipenser baerii biology.organism_classification Gene expression profiling Sexual dimorphism medicine.anatomical_structure Endocrinology Uruguay Female Development of the gonads Transcription Factors |
| Zdroj: | Fish physiology and biochemistry. 39(1) |
| ISSN: | 1573-5168 |
| Popis: | The sex differentiation period of the Siberian sturgeon was investigated through expression profiling of two testicular markers (dmrt1 and sox9). At the molecular level, a clear sexual dimorphism of dmrt1 and sox9 was observed in 3-year-old fish with immature gonads, in which males showed higher expression of these genes. Among 16-month-old sturgeons cultured in Uruguay, gonad morphology analyses showed one group of fish with undifferentiated gonads and a second group which had started their histological differentiation into ovaries or testes. dmrt1 showed a significantly higher expression in testes of recently differentiated fish, but this was not the case for sox9. In undifferentiated fish, we observed two clearly different groups in terms of expression: one group of fish over-expressing male markers (dmrt1, sox9) and another group of fish showing very low expression of these genes. This suggests that fish undergoing male differentiation can be identified by their profiles of gene expression before they undergo morphological differentiation. |
| Databáze: | OpenAIRE |
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