Centromere drive may propel the evolution of chromosome and genome size in plants
2024
Centromere Drive and Plant Genome Evolution
Sample size: 384
publication
Evidence: high
Author Information
Author(s): Plačková Klára, Bureš Petr, Lysak Martin, Zedek František
Primary Institution: Masaryk University
Hypothesis
Centromere drive may affect genome and chromosome size evolution in plants.
Conclusion
Centromere drive accelerates chromosome and genome size evolution, influencing post-polyploid diploidization.
Supporting Evidence
- Clades with asymmetric meiosis have a higher frequency of positive selection on CENH3.
- Rates of chromosome size evolution are increased in plant lineages with asymmetric meiosis.
- Centromere drive influences the stability and variability of chromosome size in different plant lineages.
Takeaway
Plants with certain types of cell division grow their chromosomes and genomes faster because of a competition among their genetic material.
Methodology
Analyzed plant groups with different meiotic modes and assessed rates of chromosome size evolution and positive selection on CENH3 using evolutionary models.
Statistical Information
P-Value
p<0.001
Statistical Significance
p<0.001
Digital Object Identifier (DOI)
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