High temperature increases the masculinization rate of the all-female (XX) rainbow trout 'mal' population
| Autor: | Edwige Quillet, Karina Valdivia, Brigitte Mourot, Alexis Fostier, Jean-Nicolas Volff, Delphine Galiana-Arnoux, Louise Helary, Elodie Jouanno, Yann Guiguen, René Guyomard |
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| Přispěvatelé: | Laboratoire de Physiologie et Génomique des Poissons (LPGP), Institut National de la Recherche Agronomique (INRA)-Structure Fédérative de Recherche en Biologie et Santé de Rennes ( Biosit : Biologie - Santé - Innovation Technologique ), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon, Institut de Génomique Fonctionnelle de Lyon (IGFL), École normale supérieure - Lyon (ENS Lyon)-Institut National de la Recherche Agronomique (INRA)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), Institut National de la Recherche Agronomique (INRA), Génétique Animale et Biologie Intégrative (GABI), Institut National de la Recherche Agronomique (INRA)-AgroParisTech, French National Research Agency (‘‘Sexytrout’’ project, ANR-2008-GENM-031) - Fellowship from the 'Ministère de la Recherche et de l'Enseignement Supérieur', Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Recherche Agronomique (INRA)-École normale supérieure - Lyon (ENS Lyon), École normale supérieure de Lyon (ENS de Lyon)-Institut National de la Recherche Agronomique (INRA)-Université Claude Bernard Lyon 1 (UCBL) |
| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
Male
Heredity Hot Temperature Sex Differentiation gonade mâle poisson Morphogenesis Biologie de la reproduction Genetics salmonidae 0303 health sciences education.field_of_study Reproductive Biology oncorhynchus mykiss détermination du sexe Multidisciplinary Sexual Differentiation 04 agricultural and veterinary sciences Trout Phenotypes medicine.anatomical_structure Phenotype Medicine Female Sex ratio différenciation sexuelle Research Article Gonad masculinisation glycogène Science Population Zoology Marine Biology Biology reproduction 03 medical and health sciences femelle taux de mortalite température Sex-determination system medicine Animals 14. Life underwater Sex Ratio education 030304 developmental biology Evolutionary Biology Sexual differentiation Population Biology Models Genetic Hatching Biology and Life Sciences Fisheries Science [SDV.BDLR]Life Sciences [q-bio]/Reproductive Biology Sex Determination Sex Determination Processes biology.organism_classification Mutation 040102 fisheries 0401 agriculture forestry and fisheries Rainbow trout Population Genetics Developmental Biology truite arc en ciel |
| Zdroj: | Plos One (9:12), 1-16. (2014) PLoS ONE PLoS ONE, Public Library of Science, 2014, 9:12, pp.1-16. ⟨10.1371/journal.pone.0113355⟩ PLoS ONE, Vol 9, Iss 12, p e113355 (2014) PLoS ONE, 2014, 9:12, pp.1-16. ⟨10.1371/journal.pone.0113355⟩ |
| ISSN: | 1932-6203 |
| DOI: | 10.1371/journal.pone.0113355⟩ |
| Popis: | Salmonids are generally considered to have a robust genetic sex determination system with a simple male heterogamety (XX/XY). However, spontaneous masculinization of XX females has been found in a rainbow trout population of gynogenetic doubled haploid individuals. The analysis of this masculinization phenotype transmission supported the hypothesis of the involvement of a recessive mutation (termed mal). As temperature effect on sex differentiation has been reported in some salmonid species, in this study we investigated in detail the potential implication of temperature on masculinization in this XX mal-carrying population. Seven families issued from XX mal-carrying parents were exposed from the time of hatching to different rearing water temperatures ((8, 12 and 18°C), and the resulting sex-ratios were confirmed by histological analysis of both gonads. Our results demonstrate that masculinization rates are strongly increased (up to nearly two fold) at the highest temperature treatment (18°C). Interestingly, we also found clear differences between temperatures on the masculinization of the left versus the right gonads with the right gonad consistently more often masculinized than the left one at lower temperatures (8 and 12°C). However, the masculinization rate is also strongly dependent on the genetic background of the XX mal-carrying families. Thus, masculinization in XX mal-carrying rainbow trout is potentially triggered by an interaction between the temperature treatment and a complex genetic background potentially involving some part of the genetic sex differentiation regulatory cascade along with some minor sex-influencing loci. These results indicate that despite its rather strict genetic sex determinism system, rainbow trout sex differentiation can be modulated by temperature, as described in many other fish species. |
| Databáze: | OpenAIRE |
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