Genomic Divergences Among Cattle, Dog, and Human
Author Information
Author(s): Liu George E, Matukumalli Lakshmi K, Sonstegard Tad S, Shade Larry L, Van Tassell Curtis P
Primary Institution: USDA, ARS, ANRI, Bovine Functional Genomics Laboratory
Hypothesis
What are the genomic divergences and substitution rates among cattle, dog, and human?
Conclusion
The study provides a large-scale assessment of genomic divergences and substitution rates among cattle, dog, and human, revealing that cattle have a faster substitution rate compared to dogs.
Supporting Evidence
- The overall genomic divergences are relatively constant for pairwise comparisons among cattle, dog, and human.
- Cattle have a significantly faster rate of substitution compared to dogs, with a difference of about 6%.
- Substitution rates vary across genomic regions and among different sequence classes.
Takeaway
Scientists looked at the DNA of cows, dogs, and humans to see how much they differ from each other. They found that cows change their DNA a bit faster than dogs do.
Methodology
The study used optimal three-way multi-species global sequence alignments of genomic sequences from cattle, dog, and human to analyze genomic divergences and substitution rates.
Potential Biases
Potential biases may arise from the exclusion of certain genomic regions and the reliance on specific alignment algorithms.
Limitations
The study's dataset is still a small part of the entire genomes of the species analyzed, and the estimates could be affected by assumptions about mutation rates and divergence times.
Statistical Information
P-Value
p<0.0001
Statistical Significance
p<0.0001
Digital Object Identifier (DOI)
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