Most plant species grown for food have an associated bank that stores thousands of samples: seeds of landraces, wild relatives, and varieties that are rare, old, or adapted to very specific environments. (discovermagazine.com)
I have compiled a list of possible New Mexican landraces from various sources, but I caution that because of cross-breeding, some seeds you receive may be unintentionally hybridized. (fieryfoodscentral.com)
Recently, it was reported that transgenic DNA introgressed into traditional maize landraces in Oaxaca, Mexico28. (fao.org)