Figure 2.

Accession origins of Medicago minima. Accessions of M. minima were acquired from USDA GRIN and collected from field sites in Texas. (a) Triangles indicate approximate origin of accessions from Eurasia and northern Africa (Table S2). An overview of transect (polygon) that included collections sites for all Texas accessions (b) along with specific locations, including haplotype distribution (c). Black star in (b) indicates the location of the state capitol, Austin TX. In (c), dots indicate individual sites. The values at each site give the O haplotype/B haplotype, except for one site (8/2 A), which indicates O/A haplotype distribution. Populations where only the O haplotype was detected lack an associated value (Table S3)