Figure 1

Comparing map interval lengths between the Marshfield map and our enhanced map (Kosambi cM). The solid red triangle indicates a map interval on chromosome 20 with incorrect Marshfield map order (D20S451-D20S164: 11.16 cM in Marshfield map vs. 2.62 cM in our European map). The solid red square represents a map interval on chromosome 11 (D11S1999-D11S1981: 4.28 cM in Marshfield map vs. 11.31 cM in our map). Other map intervals exhibiting over two-fold difference in length are depicted with solid blue circles.