What are genetic maps?
A genetic map is a representation of the position of the genes and/or markers along a chromosome, as determined by linkage analysis. To understand this we first need to understand the concepts of inheritance, independent assortment and recombination.
The genetic map of part of maize chromosome 10, using SSRs (in blue and black) and one candidate gene (zmm1). From Panzea (http://www.panzea.org).