GENSTAT programs for performing Muir's alternative partitioning of genotype-by-environment interaction.

Area of Science:

• Agricultural science
• Genetics
• Ecology

Background:

• Genotype-by-environment (GE) interaction describes how different genetic varieties exhibit varying phenotypic traits in response to environmental fluctuations.
• This interaction is a critical consideration in both plant and animal breeding programs.
• GE interaction can impede progress in identifying and selecting superior cultivars or breeds.

Purpose of the Study:

• To highlight the significance of genotype-by-environment interactions in breeding.
• To underscore the challenges GE interaction poses for selecting superior varieties.
• To emphasize the global implications of GE interaction in animal breeding.

Main Methods:

• Literature review on genotype-by-environment interactions.
• Analysis of impacts on plant breeding strategies.
• Examination of implications in global animal breeding.

Main Results:

• GE interaction limits the effectiveness of selecting superior cultivars in plant breeding.
• The phenomenon poses challenges for animal breeding, where a few companies supply stocks globally.
• Understanding GE interaction is crucial for maximizing breeding gains.

Conclusions:

• Genotype-by-environment interaction is a fundamental challenge in agricultural and animal breeding.
• Effective breeding strategies must account for GE interactions to ensure optimal variety selection.
• Addressing GE interaction is vital for global food security and livestock production.