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Figure 3 | BMC Plant Biology

Figure 3

From: Microsatellite diversity and broad scale geographic structure in a model legume: building a set of nested core collection for studying naturally occurring variation in Medicago truncatula

Figure 3

Comparison of the efficiency of random and stratified sampling strategies. The scores, the number of alleles captured in each core collection summed over the 13 loci used in this study, of a pure random strategy (black) and a stratified random strategy (grey) are compared for various Core (collection) sizes. For each core size, the score of each method reported here is an average over a hundred independent core collections. The score of the set nested core collections retained to represent the diversity of our Medicago truncatula collection (CC8 to CC96) are represented by grey circles.

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