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A Widespread Chromosomal Inversion Polymorphism Contributes to a Major Life-History Transition, Local Adaptation, and Reproductive Isolation

Figure 1

Geographic distribution of the chromosomal inversion.

(A) Map of western North America with the locations of populations of coastal perennials (blue), inland annuals (orange), and inland perennials (purple), as well as obligate self-fertilizing species M. nasutus (yellow). (B) Marker order of the AN and PE inversion arrangements along linkage group eight. Inland annuals and M. nasutus had the AN arrangement while coastal and inland perennials all had the PE arrangement.

Figure 1