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Geographic origins of the cucurbit seeds used in the current study as sources of endophytic bacteria (adapted from Khalaf and Raizada, 2016). Arrows point to the direct geographical origins of seeds and/or fruits. Dark orange dashes refer to the hotspots of cucurbit diversification based on archaeological remains. PhyloT phylogenetic tree online generator was used to construct the phylogenetic tree based on NCBI taxonomic data.
