Animal Genetic in Environment Interaction
Definition of the Subject
The existence of genotype by environment interaction (G×E) makes animal breeding more complicated. It means that the same genotype is not the best in all environments, and it implies that separate breeding programs might be needed to cater for these different environments. However, separate (and therefore, smaller) breeding programs might be less efficient than one large program. Small breeding programs might also encounter problems with inbreeding depression, but on the other hand, several populations with different breeding programs and breeding goals might increase the overall genetic diversity. Therefore, G×E is an important factor to consider when creating breeding programs for animals, especially in a global setting.
The ability to respond to changes in the environment is a vital characteristic of all organisms. This ability is called phenotypic plasticity or sometimes, environmental sensitivitysensitivity . Genetic variation in...
- 1.Falconer DS, Mackay TFC (1996) Introduction to quantitative genetics, 4th edn. Longman Group, Essex, UKGoogle Scholar
- 2.Pigliucci M (2001) Phenotypic plasticity: beyond nature and nurture. The Johns Hopkins University Press, BaltimoreGoogle Scholar
- 4.Dawkins R (1982) The extended phenotype: the long reach of the gene. Oxford University Press, OxfordGoogle Scholar
- 5.Schlichting C, Pigliucci M (1998) Phenotypic evolution: a reaction norm perspective. Sinauer, SunderlandGoogle Scholar
- 14.Gilmour A, Thompson R (2006) Statistical models for multidimensional (longitudinal/spatial) data. In: Proceedings of the 8th World Congress on Genetics Applied to Livestock Production, Belo Horizonte, BrazilGoogle Scholar
- 16.Kolmodin R (2003) Reaction norms for the study of genotype by environment interaction in animal breeding. Swedish University of Agricultural Sciences, UppsalaGoogle Scholar
- 17.Strandberg E et al (2000) Genotype by environment interaction in Nordic dairy cattle studied by use of reaction norms. Interbull Bull 25:41–45Google Scholar
- 33.Mulder HA (2007) Methods to optimize livestock breeding programs with genotype by environment interaction and genetic heterogeneity of environmental variance. In: Animal Breeding and Genetics Group, Wageningen University, WageningenGoogle Scholar
Books and Reviews
- Annicchiarico P (2002) Genotype × environment interaction: challenges and opportunities for plant breeding and cultivar recommendations. FAO Plant Production and Protection Paper (174). Food and Agriculture Organization of the United Nations, RomeGoogle Scholar
- Pigliucci M (2001) Phenotypic plasticity: beyond nature and nurture. The Johns Hopkins University Press, BaltimoreGoogle Scholar
- Schlichting C, Pigliucci M (1998) Phenotypic evolution: a reaction norm perspective. Sinauer, SunderlandGoogle Scholar