Which one of the following statements regarding genetics of quantitative traits in plants is INCORRECT?
1
Loci responsible for a quantitative trait can show variations in their individual contributions to the trait.
2
Quantitative trait loci (QTL) always have identical effects on a phenotypic trait in different environments.
3
Recombinant Inbred Lines (RIL) populations used for QTL mapping are immortal.
4
F2:3 families can measure both additive and dominant effects at specific QTL.