Read the full story here: http://onlinelibrary.wiley.com/doi/10.1111/mec.14523/full/
Shifts in diversification rates and host jump frequencies in Sclerotiniaceae fungal plant pathogens2/8/2018 The fungal pathogen Sclerotinia sclerotiorum is notorious for its ability to infect hundreds of plant species, but its close relatives do not share this property. Studying how the "broad host range" trait evolved in the Sclerotiniaceae family would pave the way for resolving the underlying molecular bases. Using a phylogenetic framework, we associate diversification rates, the frequency of host jump events, and host range variation during the evolution of this family. Variations in diversification rate during the evolution of the Sclerotiniaceae define three major macro-evolutionary regimes with contrasted proportions of species infecting a broad range of hosts. Host-parasite co-phylogenetic analyses pointed towards parasite radiation on distant hosts long after host speciation (host jump or duplication events) as the dominant mode of association with plants in the Sclerotiniaceae. The intermediate macro-evolutionary regime showed a low diversification rate, high frequency of duplication events, and the highest proportion of broad host range species.
Read the full story here: http://onlinelibrary.wiley.com/doi/10.1111/mec.14523/full/
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