Figure 1

UPGMA tree using pairwise Qst as genetic distance measures (a) for anthesis-silking interval (ASI) and (b) for kernel weight (KW). Populations from six different villages include populations from Huitzo (107–139), Mazaltepec (211–235), San-Lorenzo (309–317), Amatengo (405–439), Valdeflores (512–536), and Santa-Ana Zegache (602–640).