Genome-scale phylogeny and contrasting modes of genome evolution in the fungal phylum Ascomycota
Abstract
INTRODUCTION
RESULTS AND DISCUSSION
A genome-scale phylogeny of the fungal phylum Ascomycota
A genome-scale evolutionary timetree of the fungal phylum Ascomycota
Contrasting modes of genome evolution in fungal phylum Ascomycota
Property | Extant Saccharomycotina* (n = 332) |
Extant Pezizomycotina* (n = 761) |
Saccharomycotina ancestor |
Pezizomycotina ancestor |
Mean difference between two extant lineages |
Difference between two ancestors |
---|---|---|---|---|---|---|
Evolutionary rate (amino acid substitutions per site) |
1.80 ± 0.33 | 1.12 ± 0.13 | 1.1 | 0.9 | 0.68 | 0.2 |
GC content (%) | 40 ± 5 | 50 ± 4 | 43 | 47 | 10 | 4 |
Genome size (Mb) | 13 ± 3 | 39 ± 15 | 23 | 42 | 26 | 19 |
No. of genes | 5734 ± 834 | 10,847 ± 2,919 | 7000 | 9400 | 5113 | 2400 |
No. of DNA repair genes | 41 ± 5 | 54 ± 13 | 44 | 52 | 13 | 8 |
No. of tRNA genes | 179 ± 92 | 146 ± 89 | 160 | 170 | 33 | 10 |
dN/dS | 0.053 ± 0.008 | 0.063 ± 0.021 | 0.052 | 0.058 | 0.01 | 0.006 |
*Average value ± SD. The detailed values of all seven properties for each taxon are given in table S7.
CONCLUSION AND FUTURE WORK
MATERIALS AND METHODS
Data collection
Assessment of genome assemblies and phylogenomic data matrix construction
Phylogenetic analysis
Examination of seven genome properties
Statistical analyses
Ancestral state reconstruction
Acknowledgments
Supplementary Material
REFERENCES AND NOTES
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November 2020
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- Xing-Xing Shen et al.
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