Figure 1From: Molecular adaptation in flowering and symbiotic recognition pathways: insights from patterns of polymorphism in the legume Medicago truncatulaGeographic origin of the accessions. Colour-coding refers to the assignation in two groups as inferred using Instruct for K = 2. Group 1 (red) comprises 25 accessions and is broadly distributed geographically. Group 2 (blue) consists of n = 32 accessions.Back to article page