Figure 1: D. melanogaster’s recent global expansion. | Nature Communications

Figure 1: D. melanogaster’s recent global expansion.

From: Extensive local adaptation within the chemosensory system following Drosophila melanogaster’s global expansion

Figure 1

Left: tree schematic illustrating D. melanogaster’s relationship with its most closely related species, and the relationship between the five D. melanogaster populations from the global diversity lines. The most recent common ancestor shared with the D. simulans species trio was ∼3–5 million years ago (MYA). The non-African populations are estimated to have branched off ∼20,000 years ago (YA), and it is believed that the African ancestral population of D. melanogaster began to expand ∼60,000 YA. The separation between the two trees (red versus black) emphasizes the two timescales examined in this study. Right: cartoon representation of the expansion of the five populations from Africa around the globe.

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