Principal Component Analysis based on mitochondrial haplogroups frequencies.

<p><b>TEO</b> (Teopancazco), <b>TEO-TLAM</b> (<i>Tlamimilolpa</i> period), <b>TEO-XOL</b> (<i>Xolalpan</i> period), <b>TEO-TRAN</b> (<i>Transitional</i> phase), <b>PIMA</b> (Pima, Aridoamerica), <b>ZAP</b> (Zapotec, Oaxaca), <b>OTO</b> (Otomi, Hidalgo)<b>, OTO I</b> (Otomi, Hidalgo)<b>, OTO II</b> (Otomi, Hidalgo)<b>, NAH</b> (Nahua, Veracruz)<b>, NAH I</b> (Nahua, Veracruz)<b>, NAH II</b> (Nahua, Puebla), <b>NAH III</b> (Nahua, Hidalgo), <b>MAY</b> (Maya, Xcaret), <b>MAY II</b> (Maya, Yucatán), <b>MAY III</b> (Maya, Campeche), <b>MAY IV</b> (Maya, Quintana Roo), <b>TEPE</b> (Tepehua, Hidalgo), <b>HUA</b> (Huastec, Hidalgo) <b>MIXT</b> (Mixtec, Oaxaca), <b>MIXT II</b> (Mixtec, Oaxaca).