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Diversity of cytosine methylation across the fungal tree of life

Journal Article · · Nature Ecology and Evolution
 [1];  [1];  [2];  [3];  [4];  [2];  [5];  [1]
  1. Univ. of Georgia, Athens, GA (United States)
  2. Univ. of Michigan, Ann Arbor, MI (United States)
  3. USDOE Joint Genome Institute (JGI), Walnut Creek, CA (United States)
  4. USDOE Joint Genome Institute (JGI), Walnut Creek, CA (United States); Univ. of California, Berkeley, CA (United States)
  5. Univ. of California, Riverside, CA (United States)

The generation of thousands of fungal genomes is leading to a better understanding of genes and genomic organization within the kingdom. However, the epigenome, which includes DNA and chromatin modifications, remains poorly investigated in fungi. Large comparative studies in animals and plants have deepened our understanding of epigenomic variation, particularly of the modified base 5-methylcytosine (5mC), but taxonomic sampling of disparate groups is needed to develop unifying explanations for 5mC variation. Here, we utilize the largest phylogenetic resolution of 5mC methyltransferases (5mC MTases) and genome evolution to better understand levels and patterns of 5mC across fungi. We show that extant 5mC MTase genotypes are descendent from ancestral maintenance and de novo genotypes, whereas the 5mC MTases DIM-2 and RID are more recently derived, and that 5mC levels are correlated with 5mC MTase genotype and transposon content. Our survey also revealed that fungi lack canonical gene-body methylation, which distinguishes fungal epigenomes from certain insect and plant species. However, some fungal species possess independently derived clusters of contiguous 5mC encompassing many genes. Finally, in some cases, DNA repair pathways and the N6-methyladenine DNA modification negatively coevolved with 5mC pathways, which additionally contributed to interspecific epigenomic variation across fungi.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC); National Science Foundation (NSF); National Institutes of Health (NIH)
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1619115
Journal Information:
Nature Ecology and Evolution, Journal Name: Nature Ecology and Evolution Journal Issue: 3 Vol. 3; ISSN 2397-334X
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English

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Additional file 11 of The stem rust fungus Puccinia graminis f. sp. tritici induces centromeric small RNAs during late infection that are associated with genome-wide DNA methylation dataset January 2021
Additional file 12 of The stem rust fungus Puccinia graminis f. sp. tritici induces centromeric small RNAs during late infection that are associated with genome-wide DNA methylation dataset January 2021
Additional file 13 of The stem rust fungus Puccinia graminis f. sp. tritici induces centromeric small RNAs during late infection that are associated with genome-wide DNA methylation dataset January 2021
Additional file 14 of The stem rust fungus Puccinia graminis f. sp. tritici induces centromeric small RNAs during late infection that are associated with genome-wide DNA methylation image January 2021
Additional file 1 of The stem rust fungus Puccinia graminis f. sp. tritici induces centromeric small RNAs during late infection that are associated with genome-wide DNA methylation image January 2021
Additional file 2 of The stem rust fungus Puccinia graminis f. sp. tritici induces centromeric small RNAs during late infection that are associated with genome-wide DNA methylation image January 2021
Additional file 3 of The stem rust fungus Puccinia graminis f. sp. tritici induces centromeric small RNAs during late infection that are associated with genome-wide DNA methylation image January 2021
Additional file 4 of The stem rust fungus Puccinia graminis f. sp. tritici induces centromeric small RNAs during late infection that are associated with genome-wide DNA methylation image January 2021
Additional file 5 of The stem rust fungus Puccinia graminis f. sp. tritici induces centromeric small RNAs during late infection that are associated with genome-wide DNA methylation dataset January 2021
Additional file 6 of The stem rust fungus Puccinia graminis f. sp. tritici induces centromeric small RNAs during late infection that are associated with genome-wide DNA methylation dataset January 2021
Additional file 7 of The stem rust fungus Puccinia graminis f. sp. tritici induces centromeric small RNAs during late infection that are associated with genome-wide DNA methylation dataset January 2021
Additional file 8 of The stem rust fungus Puccinia graminis f. sp. tritici induces centromeric small RNAs during late infection that are associated with genome-wide DNA methylation dataset January 2021
Additional file 9 of The stem rust fungus Puccinia graminis f. sp. tritici induces centromeric small RNAs during late infection that are associated with genome-wide DNA methylation dataset January 2021
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­­­­­­Widespread conservation and lineage-specific diversification of genome-wide DNA methylation patterns across arthropods text January 2020

Figures / Tables (6)