Local and Regional Dynamics of Native Maize Seed Lot Use by Small-Scale Producers and Their Impact on Transgene Presence in Three Mexican States oleh Mariana Ayala-Angulo, Edgar J. González, Carolina Ureta, José Luis Chávez-Servia, Emmanuel González-Ortega, Remy Vandame, Alejandro de Ávila-Bloomberg, Geovanni Martínez-Guerra, Said González-Díaz, Rosey Obet Ruíz-González, Prisciliano Diego-Flores, Elena R. Álvarez-Buylla, Alma Piñeyro-Nelson