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Updated: Jun 15, 2025

A Practical Guide to Phylogenetics for Nonexperts

A Practical Guide to Phylogenetics for Nonexperts

Published on: February 5, 2014

Phylogenetic Biogeography Inference Using Dynamic Paleogeography Models and Explicit Geographic Ranges.

J Salvador Arias^1,2

¹Unidad Ejecutora Lillo (CONICET-Fundación Miguel Lillo), Miguel Lillo 251, CP 4000, S.M. de Tucumán, Tucumán, Argentina.

Systematic Biology

|August 23, 2024

Summary

This summary is machine-generated.

This study introduces a new phylogenetic biogeography method incorporating plate tectonics and paleolandscape data. It reconstructs ancestral areas and dispersal paths more accurately by modeling a dynamic Earth.

Keywords:

Ancestral area estimation Sapindaceae historical biogeography paleogeographic models phylogenetic biogeography phylogeography spherical diffusion

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Using Phylogenetic Analysis to Investigate Eukaryotic Gene Origin

Using Phylogenetic Analysis to Investigate Eukaryotic Gene Origin

Published on: August 14, 2018

Area of Science:

Paleobiogeography
Computational Biology
Geology

Background:

Phylogenetic biogeography methods often use predefined areas or assume a static Earth, neglecting tectonic and landscape changes.
Existing methods fail to account for the dynamic nature of Earth's geography over evolutionary timescales.

Purpose of the Study:

To develop a novel phylogenetic biogeography method that integrates explicit geographic ranges with dynamic paleogeographic reconstructions.
To improve the accuracy of ancestral area and dispersal path inferences by incorporating plate motion and paleolandscape models.

Main Methods:

A high-resolution pixelated Earth model is used, incorporating plate motion and paleolandscape data derived from geological models.
Biogeographic inference is based on diffusion, approximating landscape effects using a time-stratified model that accounts for geographic changes.
A simplified stochastic mapping algorithm infers ancestral locations and lineage distances traveled.

Main Results:

The method provides detailed reconstructions of ancestral areas for the Sapindaceae plant family.
It enables inferences on probable dispersal paths and diffusion speeds across the taxon's evolutionary history.
Demonstrates the utility of explicit geographic data coupled with high-resolution paleogeographic models.

Conclusions:

The proposed method, implemented in PhyGeo, offers a significant advancement in phylogenetic biogeography by modeling a dynamic Earth.
Accurate paleogeographic reconstructions are crucial for understanding evolutionary history and species distribution.
This approach enhances the reconstruction of ancestral areas, dispersal routes, and evolutionary rates.