Ambidirectional dominance

From Wikipedia, the free encyclopedia
Jump to: navigation, search

Ambidirectional dominance occurs in a situation where multiple genes influence a phenotype and dominance is in different directions depending on the gene. The opposite situation, where all genes show dominance in the same direction, is called directional dominance.[1] According to Broadhurst, ambidirectional dominance is the result of stabilising selection in the evolutionary past.[1] Ambidirectional dominance has been found for exploratory behaviours in mice[2][3][4] and Paradise fish.[5]


  1. ^ a b Broadhurst, PL; Jinks, JL (1974). "What genetical architecture can tell us about the natural selection of behavioural traits". In van Abeelen, JHF. The Genetics of Behaviour. Amsterdam: North Holland. pp. 43–63. ISBN 0-7204-7137-0. OCLC 1365968. 
  2. ^ Crusio WE, van Abeelen JH (February 1986). "The genetic architecture of behavioural responses to novelty in mice". Heredity 56 (1): 55–63. doi:10.1038/hdy.1986.8. PMID 3943979. 
  3. ^ Crusio WE, Schwegler H, van Abeelen JH (February 1989). "Behavioral responses to novelty and structural variation of the hippocampus in mice. I. Quantitative-genetic analysis of behavior in the open-field". Behavioural Brain Research 32 (1): 75–80. doi:10.1016/S0166-4328(89)80074-9. PMID 2930636. 
  4. ^ Crusio WE (November 2001). "Genetic dissection of mouse exploratory behaviour". Behavioural Brain Research 125 (1–2): 127–32. doi:10.1016/S0166-4328(01)00280-7. PMID 11682103. 
  5. ^ Gerlai R, Crusio WE, Csányi V (July 1990). "Inheritance of species-specific behaviors in the paradise fish (Macropodus opercularis): a diallel study". Behavior Genetics 20 (4): 487–98. doi:10.1007/BF01067715. PMID 2256892.