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Reconocimiento individual en ratones mediado por las principales proteínas urinarias
J L Hurst1, C E Payne, C M Nevison
1Department of Veterinary Clinical Science and Animal Husbandry, University of Liverpool, Leahurst, Neston CH64 7TE, UK. jane.hurst@liverpool.ac.uk
Nature
|December 12, 2001
Resumen
Las proteínas urinarias principales (MUP) son cruciales para el reconocimiento de olores individuales en ratones salvajes. Sus diversos patrones de expresión contribuyen significativamente a la forma en que los ratones se identifican entre sí a través del olfato.
Área de la Ciencia:
- Comportamiento animal Comportamiento animal.
- La comunicación olfativa es la comunicación olfativa.
- Reconocimiento social de los mamíferos.
Sus antecedentes:
- El reconocimiento individual es vital para el comportamiento social de los mamíferos.
- Las señales de olor de los mamíferos a menudo se derivan del complejo mayor de histocompatibilidad (MHC).
- La orina de roedores contiene proteínas urinarias principales (MUP) que se unen y liberan feromonas.
Objetivo del estudio:
- Investigar el papel de los MUP en el reconocimiento individual en ratones domésticos silvestres (Mus domesticus).
- Determinar si los MUP contribuyen a la complejidad de las señales de individualidad olfativa.
Principales métodos:
- Análisis de la diversidad de expresión de MUP en ratones domésticos salvajes.
- Evaluación de la contribución de los MUP a los perfiles de olor urinario.
- Ensayos conductuales para probar el reconocimiento individual basado en MUP (implicado).
Principales resultados:
- La diversidad combinatoria de la expresión de MUP en ratones salvajes es comparable a la diversidad de MHC.
- Los MUP están presentes en concentraciones significativamente más altas que los odorantes relacionados con el MHC.
- Los MUP urinarios juegan un papel importante en el mecanismo de reconocimiento individual de los ratones domésticos salvajes.
Conclusiones:
- Los MUP son un componente clave del sistema olfativo para el reconocimiento individual en ratones.
- La diversidad y abundancia de MUPs contribuyen sustancialmente a la comunicación olfativa de los mamíferos.
- Investigaciones adicionales sobre los MUP pueden arrojar luz sobre los mecanismos de reconocimiento olfativo humano.
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