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Large Scale Sequencing of Dothideomycetes Provides Insights into Genome Evolution and Adaptation:

  • Author(s): Haridas, Sajeet
  • Crous, Pedro
  • Binder, Manfred
  • Spatafora, Joseph
  • Grigoriev, Igor
  • et al.
Abstract

Dothideomycetes is the largest and most diverse class of ascomycete fungi with 23 orders 110 families, 1300 genera and over 19,000 known species. We present comparative analysis of 70 Dothideomycete genomes including over 50 that we sequenced and are as yet unpublished. This extensive sampling has almost quadrupled the previous study of 18 species and uncovered a 10 fold range of genome sizes. We were able to clarify the phylogenetic positions of several species whose origins were unclear in previous morphological and sequence comparison studies. We analyzed selected gene families including proteases, transporters and small secreted proteins and show that major differences in gene content is influenced by speciation.

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