Gizakiaren aurpegiaren ezaugarri fenotipikoei loturiko aldakortasun genetikoaren analisia

Abstract

Facial morphology is of great value for individual identification. In our project, we studied the geographical distribution of SNPs which influence facial morphology. Our PCA analysis shows that it is difficult to disentangle facial morphology from demographic history of mayor human populations. From PRS statistics we show that regarding nasal morphology, populations of East Asia and Africa seems to have a wider nose, whereas populations of Europe show a narrower nose. These results can be explained as a climatic adaptation. The investigation of facial morphology related SNPs can also be useful in forensic sciences; however, the phenotypic identification of morphological traits of an individual is complex and would require population-specific SNPs associated to anthropometric traits.