Heritability of boldness and aggressiveness in the zebrafish

Tolulope O. Ariyomo, Mauricio Carter, Penelope J. Watt

Resultado de la investigación: Article

65 Citas (Scopus)

Resumen

Behavioural traits that are consistent over time and in different contexts are often referred to as personality traits. These traits influence fitness because they play a major role in foraging, reproduction and survival, and so it is assumed that they have little or no additive genetic variance and, consequently, low heritability because, theoretically, they are under strong selection. Boldness and aggressiveness are two personality traits that have been shown to affect fitness. By crossing single males to multiple females, we estimated the heritability of boldness and aggressiveness in the zebrafish, Danio rerio. The additive genetic variance was statistically significant for both traits and the heritability estimates (95 % confidence intervals) for boldness and aggressiveness were 0.76 (0.49, 0.90) and 0.36 (0.10, 0.72) respectively. Furthermore, there were significant maternal effects accounting for 18 and 9 % of the proportion of phenotypic variance in boldness and aggressiveness respectively. This study shows that there is a significant level of genetic variation in this population that would allow these traits to evolve in response to selection.

Idioma originalEnglish
Páginas (desde-hasta)161-167
Número de páginas7
PublicaciónBehavior Genetics
Volumen43
N.º2
DOI
EstadoPublished - 1 mar 2013

Huella dactilar

Zebrafish
heritability
aggression
Danio rerio
Personality
genetic variance
Reproduction
fitness
Confidence Intervals
maternal effect
phenotypic variation
confidence interval
Population
genetic variation
foraging
Maternal Inheritance

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Genetics
  • Genetics(clinical)

Citar esto

Ariyomo, Tolulope O. ; Carter, Mauricio ; Watt, Penelope J. / Heritability of boldness and aggressiveness in the zebrafish. En: Behavior Genetics. 2013 ; Vol. 43, N.º 2. pp. 161-167.
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Heritability of boldness and aggressiveness in the zebrafish. / Ariyomo, Tolulope O.; Carter, Mauricio; Watt, Penelope J.

En: Behavior Genetics, Vol. 43, N.º 2, 01.03.2013, p. 161-167.

Resultado de la investigación: Article

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