La filogenia PrimateUn protocolo de prácticas.

Résumé

Objective: A practical class on genomic data analysis is proposed, in which phylogeny of the order of primates is reviewed. Materials and methods: From the sequences of 54 genes corresponding to 186 primate species, a series of phylogenetic analyses are carried out using different algorithms. First, the results obtained by five methods (Maximum Likelihood, Neighbor Joining, Minimum Evolution, UPGMA and Maximum Parsimony) are compared for the whole order Primate. Then, the analysis of Strepsirrhini and Haplorrhini (Platyrrhini and Catarrhini) is deepened separately. In order to facilitate the visual identification of the different primate genera, a program (GEH) has been developed, which shows images of both each specimen and its geographical distribution. Activities: In the final report of the activity, the phylogenetic algorithms will be evaluated, selecting the method that offers the most credible tree from the knowledge previously acquired about the different groups of primates. The robustness of the different branches will also be assessed in the light of the bootstrap values obtained. In the Strepsirrhini, Platyrrhini and Catarrhini analyses, the genus groupings in the respective trees will be interpreted. Finally, the most striking differential morphological characteristics and geographical distribution of each group will be discussed.