The Marker Type field specifies the variable listing the cross-type 1 of each marker. as described in the paper.All of the variables in the specified data set are displayed in the Available Variables field.
Highlight the variable listing the marker types. Click to add the highlighted variable to the Marker Type field, as shown below:
Wu et al . 2002. Simultaneous Maximum Likelihood Estimation of Linkage and Linkage Phases in Outcrossing Species. Theor Popul Biol 61:349--363.