AI Article Synopsis
- A new phylogenetic reconstruction method combines Maximum Parsimony and Phylogenetic Networks to study human evolution through the craniodental traits of 22 hominin species.
- The approach involves selecting the most parsimonious tree from multiple runs and generating a reduced character dataset to create various parsimony trees for further analysis.
- The results suggest that the concept of a genus is flexible, linked to specific traits, and aligns with recent paleogenomic research about human evolution.
Article Abstract
We present a methodological phylogenetic reconstruction approach combining Maximum Parsimony and Phylogenetic Networks methods for the study of human evolution applied to phenotypic craniodental characters of 22 hominin species. The approach consists in selecting and validating a tree-like most parsimonious scenario out of several parsimony runs based on various numerical constraints. An intermediate step from tree to network methods is implemented by running an analysis with a reduced apomorphous character dataset that generates multiple parsimonious trees. These most parsimonious trees are then used as input for a Phylogenetic Networks analysis that results in consensus and reticulate networks. We show here that the phylogenetic tree-like definition of the genus is a relative concept linked to craniodental characters that come in support of hypothetical Last Common Ancestors of the most parsimonious scenario and infer that the reticulate network concords with recent findings in paleogenomic research regarding its mode of evolution.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8054162 | PMC |
| http://dx.doi.org/10.1016/j.isci.2021.102359 | DOI Listing |
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