Transcription of Chapter 4: Quantitative genetics I: Genetic …
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Chapter 4: Quantitative genetics I: Genetic …
Conner and Hartl p. 4-1 From: Conner, J. and D. Hartl, A Primer of Ecological genetics . In prep. for SinauerChapter 4: Quantitative genetics I: Genetic Mendelian basis of continuous traitsThe previous chapters have focused on the population genetics of single loci with only twoalleles. If a large majority of variation in a phenotypic trait is determined by one locus, the resultis a visible polymorphism like Mendel s pea traits or flower color in Delphinium ( Chapter 2).However, as noted in Chapter 2, most phenotypic traits do not fall into distinct categories, butrather are continuously distributed. Examples of continuously distributed traits are shown inFigure These traits are called Quantitative or metric traits because they need to bemeasured, not just scored as round or wrinkled or blue or white.
Chapter 4: Quantitative genetics I: Genetic variation 4.1 Mendelian basis of continuous traits The previous chapters have focused on the population genetics of single loci with only two alleles. If a large majority of variation in a phenotypic trait is determined by one locus, the result is a visible polymorphism like Mendel’s pea traits or flower …
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