BIOL321 Lecture Notes - Lecture 13: Heritability, Pleiotropy, Phenotypic Plasticity
29 Apr 2016
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But this isn"t very reliable due to publication bias where boring articles are not published. Persistence of lactase enzymes has arisen at least 3 independent times in history, it had a large s value. Most quantitative traits are polygenically controlled, genetic architecture refers to o the number of loci involved: whether they have additive effects o the magnitude of their effects, pleiotropy. If two flies, one that is wild type, and one that is missing a chromosome and also its wings, then we know that on that chromosome is at least one gene for wing development. If there is more than one marker on a chromosome, then crossover events may allow for the detection of more than one quantitative trait. Quantitative trait loci is one method (sophisticated) of mapping with purely molecular markers once a region of dna is confirmed as affected the phenotype, then it can be sequenced. Qtl mapping is used for wildlife management and agricultural knowledge.
