Fig. 2: Genetic similarities between Chichén Itzá, Tixcacaltuyub and present-day and ancient American Indigenous groups.
From: Ancient genomes reveal insights into ritual life at Chichén Itzá
a, PCA showing ancient Chichén Itzá (YCH) individuals and present-day Tixcacaltuyub (TIX) in a worldwide PCA plot. b,c, Admixture analyses showing the clustering from k = 4 for YCH, TIX and different continental genetic sources (b) and the clustering for the newly produced samples at k = 8 (lowest cross-validation errors), with a more comprehensive list of Indigenous American populations (c). d,e, Outgroup F3 statistics in the form f3(Mbuti; YCH, X) where X are present-day groups from the Americas (d) and published ancient groups and individuals (e). High similarities are indicated by warmer colours; low similarities by darker colours. f,g, Outgroup F3 statistics in the form f3(Mbuti; TIX, X) where X are present-day groups from the Americas (f) and published ancient groups and individuals (g). High similarities are indicated by warmer colours, low similarities by darker colours. A list for the populations/individuals used in these analyses can be found in the Supplementary Information: source populations for the population genetics analyses.
