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Figure 1 | BMC Biology

Figure 1

From: Molecular phylogenetics reveal multiple tertiary vicariance origins of the African rain forest trees

Figure 1

Alternative hypotheses of African rain forest origins. (A) Distribution of lowland rain forest in Africa (black) overlaid by altitudinal range (increasing altitude with darker grey). Red lines highlight the Guineo-Congolian region; the blue line highlights the East African region. (B) Phylogenetic tree expected from a single break-up scenario. (C) Phylogenetic tree expected from multiple break-ups at significantly different times scenario. Open circles indicate West-Central/East splits.

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