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Updated: Jun 19, 2026
08:57
Using Phylogenetic Analysis to Investigate Eukaryotic Gene Origin
Published on: August 14, 2018
Resolving the evolution of extant and extinct ruminants with high-throughput phylogenomics
Jared E Decker1, J Chris Pires, Gavin C Conant
1Divisions of Animal Sciences, Biological Sciences, and Department of Veterinary Pathobiology, University of Missouri, Columbia, MO 65211, USA.
Summary
Researchers resolved the Pecoran phylogeny using a novel genome-wide SNP genotyping platform. This method successfully analyzed ancient DNA and ancient species, clarifying evolutionary relationships in higher ruminants.
Area of Science:
- Evolutionary Biology
- Genomics
- Paleontology
Background:
- The Pecoran infraorder (higher ruminants) underwent rapid speciation in the Mid-Eocene, leading to five extant families.
- Resolving the Pecoran phylogeny has been challenging due to rapid radiation, with multiple conflicting phylogenetic hypotheses.
- Ancient DNA analysis offers potential but faces technical hurdles in genotyping and validation.
Purpose of the Study:
- To develop and validate a genome-wide SNP genotyping platform for resolving the Pecoran phylogeny.
- To genotype ancient DNA from extinct Pecoran species.
- To establish a robust method for ancient sample integrity validation.
Main Methods:
- Utilized a high-throughput assay with 54,693 SNP loci developed for Bos taurus taurus.
- Genotyped 678 individuals across 61 Pecoran species, including ancient DNA.
- Applied phylogenomic network analysis for breed relationships and domestication history.
Main Results:
- Generated a highly resolved Pecoran phylogeny using 40,843 genome-wide SNPs, significantly increasing informative characters.
- Successfully genotyped ancient DNA from extinct species, placing Bison priscus within Bovidae.
- Demonstrated the platform's utility for validating ancient sample fidelity and integrity.
Conclusions:
- The developed SNP genotyping platform effectively resolves complex phylogenies, even with ancient DNA.
- This approach provides a powerful tool for understanding the evolutionary history of rapidly radiated groups.
- The study enhances methods for ancient DNA analysis and offers insights into cattle domestication.
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