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Fig. 1. A genetic linkage map derived from a marker analysis of 76 F5:6 recombinant inbred lines of the Asgrow A3733 x PI 437088A mating. The 417 markers of this map coalesced into 35 linkage groups which were matched, on the basis of SSR marker homology, to the 20 known and named A through O soybean linkage groups (Cregan et al., 1999). Numerical marker distances were deleted to minimize figure size, but all linkage groups are shown on the same proportionate scale. The Haldane mapping function (centimorgan units) was used to create the map. The small solid rectangle in linkage group (LG) I denotes the map position of the protein, oil, and yield QTL(s).