I have a naive question about recombination maps. I need to use the genetic position in cM but I only have the physical position and rate in cM/MB. How do I convert this to a position in cM? I looked at the HapMap recombination maps and the conversion is not directly obvious to me.
Chromosome Position(bp) Rate(cM/Mb) Map(cM)
chr3 61113 2.699484 0.000000
chr3 61495 0.980191 0.001031
chr3 62226 0.854964 0.001748
Using col 2 (bp position) and 3 (cM/MB), I need to derive col 4. Any suggestions?