Consulta: creatorFacets:"Mackenzie, Simon"
Registros recuperados: 2
Data/hora: 13/06/2024 06:51:48

Analysis across diverse fish species highlights no conserved transcriptome signature for proactive behaviour
Provedor de dados: 5
Autores: Rey, Sonia; Jin, Xingkun; Damsgård, Børge; Begout, Marie-laure; Mackenzie, Simon.
Background Consistent individual differences in behaviour, known as animal personalities, have been demonstrated within and across species. In fish, studies applying an animal personality approach have been used to resolve variation in physiological and molecular data suggesting a linkage, genotype-phenotype, between behaviour and transcriptome regulation. In this study, using three fish species (zebrafish; Danio rerio, Atlantic salmon; Salmo salar and European sea bass; Dicentrarchus labrax), we firstly address whether personality-specific mRNA transcript abundances are transferrable across distantly-related fish species and secondly whether a proactive transcriptome signature is conserved across all three species. Results Previous zebrafish transcriptome...
Tipo: Text
Palavras-chave: Proactive; Animal personality; RNA sequencing; Fish behaviour; Phenotype variation; Convergent evolution.
Ano: 2021
URL: https://archimer.ifremer.fr/doc/00668/78001/80227.pdf

Physiological responses during acute stress recovery depend on stress coping style in European sea bass, Dicentrarchus labrax.
Provedor de dados: 5
Autores: Ferrari, Sebastien; Rey, Sonia; Høglund, Erik; Øverli, Øyvind; Chatain, Beatrice; Mackenzie, Simon; Bégout, Marie-laure.
Individual stress coping style (reactive, intermediate and proactive) was determined in 3 groups of 120 pit tagged European seabass using the hypoxia avoidance test. The same three groups (no change in social composition) were then reared according to the standards recommended for this species. Then, 127 days later, individuals initially characterized as reactive, intermediate or proactive were submitted to an acute confinement stress for 30 min. Blood samples were taken to measure plasma cortisol levels 30 min (Stress30) or 150 min (Stress150) after the end of the confinement stress. Individuals were then sacrificed to sample the telencephalon in order to measure the main monoamines and their catabolites (at Stress30 only). Individuals from Stress150 were...
Tipo: Text
Palavras-chave: Fish; Behavior; Physiology; Personality; Brain; Transcriptomic.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00601/71330/69760.pdf