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Figure 2 | BMC Genomics

Figure 2

From: Association of microsatellite pairs with segmental duplications in insect genomes

Figure 2

Hypergeometric distribution of repetitive microsatellite pairs. The grey horizontal line on the top shows hypothetical genomic locations of different microsatellites (M1 through M6) with intervening distance (d) shown in between. The microsatellite pair M1-M2 is localized at two positions where the intervening distance is the same (d1) at both locations. The M1-M2 pair is also located at another position but with a different intervening distance (d7). On the other hand, a different pair of microsatellites (M4 and M5) is found wherein the intervening distance is again d1. M3 and M6 are not associated with any repetitive microsatellite pair. Below that, the rectangular box shows all the neighboring pairs of microsatellites identified in the genome which is basically the total counts of microsatellites minus 1. The two circles within the box contain n1 and n2 microsatellite pairs respectively, where n1 is the total count of different SSR pairs but has the same distance d1 (i.e. M4-M5 pairs) and n2 is the total counts of the same SSR pairs (M1-M2) but with different intervening distance (d7). The overlap between the two circles represents the total number (n3) of SSR pairs with the same SSR sequences (M1-M2) as well as the same intervening distance (d1). The probability of obtaining these n3 numbers of repetitive pairs of M1-M2 is the hypergeometric distribution probability shown below the circles.

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