Comparative Genomics of the Sigatoka Disease Complex on Banana Suggests a Link between Parallel Evolutionary Changes in Pseudocercospora fijiensis and Pseudocercospora eumusae and Increased Virulence on the Banana Host
Publication Date
August 11, 2016
Journal
PLOS Genetics
Authors
Ti Cheng Chang, Anthony Salvucci, Pedro W. Crous & Ioannis Stergiopoulos
Volume
12
Issue
8
Pages
e1005904
DOI
https://dx.plos.org/10.1371/journal.pgen.1005904
Publisher URL
http://journals.plos.org/plosgenetics/article?id=10.1371%2Fjournal.pgen.1005904
Web of Science
000382394500002
Scopus
84984878695
Mendeley
http://www.mendeley.com/research/comparative-genomics-sigatoka-disease-complex-banana-suggests-link-between-parallel-evolutionary-cha
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Mendeley | Further Information

{"title"=>"Comparative Genomics of the Sigatoka Disease Complex on Banana Suggests a Link between Parallel Evolutionary Changes in Pseudocercospora fijiensis and Pseudocercospora eumusae and Increased Virulence on the Banana Host", "type"=>"journal", "authors"=>[{"first_name"=>"Ti Cheng", "last_name"=>"Chang", "scopus_author_id"=>"35363547900"}, {"first_name"=>"Anthony", "last_name"=>"Salvucci", "scopus_author_id"=>"57190294907"}, {"first_name"=>"Pedro W.", "last_name"=>"Crous", "scopus_author_id"=>"7101909107"}, {"first_name"=>"Ioannis", "last_name"=>"Stergiopoulos", "scopus_author_id"=>"7801464962"}], "year"=>2016, "source"=>"PLoS Genetics", "identifiers"=>{"isbn"=>"1553-7404", "scopus"=>"2-s2.0-84984878695", "pui"=>"612002860", "doi"=>"10.1371/journal.pgen.1005904", "issn"=>"15537404", "pmid"=>"27513322", "sgr"=>"84984878695"}, "id"=>"69b5840a-1596-342e-96c8-eb41eba85198", "abstract"=>"The Sigatoka disease complex, caused by the closely-related Dothideomycete fungi Pseu- docercospora musae (yellow sigatoka), Pseudocercospora eumusae (eumusae leaf spot), and Pseudocercospora fijiensis (black sigatoka), is currently the most devastating disease on banana worldwide. The three species emerged on bananas from a recent common ancestor and show clear differences in virulence, with P. eumusae and P. fijiensis consid- ered themost aggressive. In order to understand the genomic modifications associated with shifts in the species virulence spectra after speciation, and to identify their pathogenic core that can be exploited in disease management programs, we have sequenced and ana- lyzed the genomes of P. eumusae and P. musae and compared them with the available genome sequence of P. fijiensis. Comparative analysis of genome architectures revealed significant differences in genome size, mainly due to different rates of LTR retrotransposon proliferation. Still, gene counts remained relatively equal and in the range of other Dothideo- mycetes. Phylogenetic reconstruction based on a set of 46 conserved single-copy genes strongly supported an earlier evolutionary radiation of P. fijiensis from P. musae and P. eumusae. However, pairwise analyses of gene content indicated that the more virulent P. eumusae and P. fijiensis share complementary patterns of expansions and contractions in core gene families related to metabolism and enzymatic degradation of plant cell walls, sug- gesting that the evolution of virulence in these two pathogens has, to some extent, been facilitated by convergent changes in metabolic pathways associated with nutrient acquisi- tion and assimilation. In spite of their common ancestry and shared host-specificity, the three species retain fairly dissimilar repertoires of effector proteins, suggesting that they likely evolved different strategies for manipulating the host immune system. Finally, 234 gene families, including seven putative effectors, were exclusively present in the three Siga- toka species, and could thus be related to adaptation to the banana host.", "link"=>"http://www.mendeley.com/research/comparative-genomics-sigatoka-disease-complex-banana-suggests-link-between-parallel-evolutionary-cha", "reader_count"=>38, "reader_count_by_academic_status"=>{"Unspecified"=>3, "Professor > Associate Professor"=>3, "Student > Doctoral Student"=>3, "Researcher"=>7, "Student > Ph. D. Student"=>7, "Student > Postgraduate"=>2, "Student > Master"=>8, "Other"=>1, "Student > Bachelor"=>2, "Professor"=>2}, "reader_count_by_user_role"=>{"Unspecified"=>3, "Professor > Associate Professor"=>3, "Student > Doctoral Student"=>3, "Researcher"=>7, "Student > Ph. D. Student"=>7, "Student > Postgraduate"=>2, "Student > Master"=>8, "Other"=>1, "Student > Bachelor"=>2, "Professor"=>2}, "reader_count_by_subject_area"=>{"Unspecified"=>7, "Engineering"=>1, "Biochemistry, Genetics and Molecular Biology"=>1, "Agricultural and Biological Sciences"=>26, "Medicine and Dentistry"=>1, "Computer Science"=>1, "Economics, Econometrics and Finance"=>1}, "reader_count_by_subdiscipline"=>{"Engineering"=>{"Engineering"=>1}, "Medicine and Dentistry"=>{"Medicine and Dentistry"=>1}, "Economics, Econometrics and Finance"=>{"Economics, Econometrics and Finance"=>1}, "Agricultural and Biological Sciences"=>{"Agricultural and Biological Sciences"=>26}, "Computer Science"=>{"Computer Science"=>1}, "Biochemistry, Genetics and Molecular Biology"=>{"Biochemistry, Genetics and Molecular Biology"=>1}, "Unspecified"=>{"Unspecified"=>7}}, "reader_count_by_country"=>{"Colombia"=>1, "Australia"=>1}, "group_count"=>3}

Scopus | Further Information

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