Fig 3. Principal component analysis of collecting sites of teosinte using ecogeographic data (Zea mays ssp. parviglumis designated with a blue square; Zea mays ssp. mexicana race Chalco designated with a red circle, race Durango designated with an orange circle, race Central Plateau designated with a lawngreen triangle, race Nobogame designated with a pink circle; Zea mays ssp. huehuetenangensis designated with a cyan square; Zea perennis designated with a purple star; Zea diploperennis designated with a magenta star; Zea luxurians designated with a darkgreen diamond; Zea nicaraguensis designated with a gray diamond; Zea luxurians from San Felipe Usila, Oaxaca designated with a brown diamond; Zea vespertilio designated with a yellow diamond).