Fig. 3.

Genetic vs. physical distances for chromosome 10. Sequence-based genetic markers (cM units, vertical axis) have been compared with the soybean chromosomal genome assembly to determine their physical locations (100 kb units, horizontal axis). The pattern of steep slopes at the chromosome ends and flat slopes in the centers is common across all 20 chromosomes, and corresponds with high rates of recombination in the gene-rich euchromatic chromosomal ends and suppressed recombination in the repeat-rich, gene-poor chromosomal centers.