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Citation for Study 16800

Citation title: "Evolution of novel wood decay mechanisms in Agaricales revealed by the genome sequences of Fistulina hepatica and Cylindrobasidium torrendii".

Study name: "Evolution of novel wood decay mechanisms in Agaricales revealed by the genome sequences of Fistulina hepatica and Cylindrobasidium torrendii".

This study is part of submission 16800 (Status: Published).

Citation

Floudas D., Held B.W., Riley R., Nagy L.G., Koehler G., Ransdell A.S., Younus H., Chow J., Chiniquy J., Lipzen A., Tritt A., Sun H., Haridas S., Labutti K., Ohm R.A., K?es U., Blanchette R.A., Grigoriev I.V., Minto R.E., & Hibbett D.S. 2014. Evolution of novel wood decay mechanisms in Agaricales revealed by the genome sequences of Fistulina hepatica and Cylindrobasidium torrendii. Fungal Genetics and Biology, .

Authors

• Floudas D. (submitter) +46 722230088
• Held B.W.
• Riley R.
• Nagy L.G. +36305424946
• Koehler G.
• Ransdell A.S.
• Younus H.
• Chow J.
• Chiniquy J.
• Lipzen A.
• Tritt A.
• Sun H.
• Haridas S.
• Labutti K.
• Ohm R.A.
• K?es U.
• Blanchette R.A.
• Grigoriev I.V.
• Minto R.E.
• Hibbett D.S.

Abstract

Wood decay mechanisms in Agaricomycotina have been traditionally separated in two categories termed white and brown rot. Recently the accuracy of such a dichotomy has been questioned. Here, we present the genome sequences of the white rot Cylindrobasidium torrendii and the brown rot Fistulina hepatica both members of Agaricales, combining comparative genomics and wood decay experiments. Cylindrobasidium torrendii is closely related to the white-rot root pathogen Armillaria mellea, while F. hepatica is related to Schizophyllum commune, which has been reported to cause white rot. Our results suggest that C. torrendii and S. commune are intermediate between white-rot and brown-rot fungi, but at the same time they show characteristics of decay that resembles soft-rot. Both species cause weak wood decay and degrade all wood components but leave the middle lamella intact. Their gene content related to lignin degradation is reduced, similar to brown-rot fungi, but both have maintained a rich array of genes related to carbohydrate degradation, similar to white-rot fungi. These characteristics appear to have evolved from white-rot ancestors with stronger ligninolytic ability. Fistulina hepatica shows characteristics of brown rot both in terms of gene content related to wood decay found in its genome and the decay that it causes. However, genes related to cellulose degradation are still found in its genome, which is a plesiomorphic characteristic shared with its white-rot ancestors. Four wood degradation-related genes, homologs of which are frequently lost in brown-rot fungi, show signs of pseudogenization in the genome of F. hepatica. These results suggest that transition towards a brown rot lifestyle could be an ongoing process in F. hepatica. Our results reinforce the idea that wood decay mechanisms are more diverse than initially thought and that the dichotomous separation of wood decay mechanisms in Agaricomycotina into white rot and brown rot should be revisited.

Keywords

Agaricales, wood decay, white rot, brown rot, reconciliation, pseudogenes, genome sequencing

External links

• DOI: 10.1016/j.fgb.2015.02.002

About this resource

• Canonical resource URI: http://purl.org/phylo/treebase/phylows/study/TB2:S16800
• Other versions: Nexus NeXML
• Show BibTeX reference

  		@ARTICLE{TreeBASE2Ref23988,
  	 author = {Dimitrios  Floudas and Benjamin W Held and Robert  Riley and L?szl? G. Nagy and Gage  Koehler and Anthony  S Ransdell and Hina  Younus and Julianna  Chow and Jennifer  Chiniquy and Anna   Lipzen and Andrew   Tritt and Hui  Sun and Sajeet   Haridas and Kurt  LaButti and Robin  A Ohm and Ursula   K?es and Robert  A Blanchette and Igor  V Grigoriev and Robert  E Minto and David S Hibbett},
  	 title = {Evolution of novel wood decay mechanisms in Agaricales revealed by the genome sequences of Fistulina hepatica and Cylindrobasidium torrendii},
  	 year = {2014},
  	 keywords = {Agaricales, wood decay, white rot, brown rot, reconciliation, pseudogenes, genome sequencing},
  	 doi = {10.1016/j.fgb.2015.02.002},
  	 url = {http://},
  	 pmid = {},
  	 journal = {Fungal Genetics and Biology},
  	 volume = {},
  	 number = {},
  	 pages = {},
  	 abstract = {Wood decay mechanisms in Agaricomycotina have been traditionally separated in two categories termed white and brown rot. Recently the accuracy of such a dichotomy has been questioned. Here, we present the genome sequences of the white rot Cylindrobasidium torrendii and the brown rot Fistulina hepatica both members of Agaricales, combining comparative genomics and wood decay experiments. Cylindrobasidium torrendii is closely related to the white-rot root pathogen Armillaria mellea, while F. hepatica is related to Schizophyllum commune, which has been reported to cause white rot. Our results suggest that C. torrendii and S. commune are intermediate between white-rot and brown-rot fungi, but at the same time they show characteristics of decay that resembles soft-rot. Both species cause weak wood decay and degrade all wood components but leave the middle lamella intact. Their gene content related to lignin degradation is reduced, similar to brown-rot fungi, but both have maintained a rich array of genes related to carbohydrate degradation, similar to white-rot fungi. These characteristics appear to have evolved from white-rot ancestors with stronger ligninolytic ability. Fistulina hepatica shows characteristics of brown rot both in terms of gene content related to wood decay found in its genome and the decay that it causes. However, genes related to cellulose degradation are still found in its genome, which is a plesiomorphic characteristic shared with its white-rot ancestors. Four wood degradation-related genes, homologs of which are frequently lost in brown-rot fungi, show signs of pseudogenization in the genome of F. hepatica. These results suggest that transition towards a brown rot lifestyle could be an ongoing process in F. hepatica. Our results reinforce the idea that wood decay mechanisms are more diverse than initially thought and that the dichotomous separation of wood decay mechanisms in Agaricomycotina into white rot and brown rot should be revisited.}
  }
  		

• Show RIS reference

  		TY  - JOUR
  ID  - 23988
  AU  - Floudas,Dimitrios 
  AU  - Held,Benjamin W
  AU  - Riley,Robert 
  AU  - Nagy,L?szl? G.
  AU  - Koehler,Gage 
  AU  - Ransdell,Anthony  S
  AU  - Younus,Hina 
  AU  - Chow,Julianna 
  AU  - Chiniquy,Jennifer 
  AU  - Lipzen,Anna  
  AU  - Tritt,Andrew  
  AU  - Sun,Hui 
  AU  - Haridas,Sajeet  
  AU  - LaButti,Kurt 
  AU  - Ohm,Robin  A
  AU  - K?es,Ursula  
  AU  - Blanchette,Robert  A
  AU  - Grigoriev,Igor  V
  AU  - Minto,Robert  E
  AU  - Hibbett,David S
  T1  - Evolution of novel wood decay mechanisms in Agaricales revealed by the genome sequences of Fistulina hepatica and Cylindrobasidium torrendii
  PY  - 2014
  KW  - Agaricales
  KW  - wood decay
  KW  - white rot
  KW  - brown rot
  KW  - reconciliation
  KW  - pseudogenes
  KW  - genome sequencing
  UR  - http://dx.doi.org/10.1016/j.fgb.2015.02.002
  N2  - Wood decay mechanisms in Agaricomycotina have been traditionally separated in two categories termed white and brown rot. Recently the accuracy of such a dichotomy has been questioned. Here, we present the genome sequences of the white rot Cylindrobasidium torrendii and the brown rot Fistulina hepatica both members of Agaricales, combining comparative genomics and wood decay experiments. Cylindrobasidium torrendii is closely related to the white-rot root pathogen Armillaria mellea, while F. hepatica is related to Schizophyllum commune, which has been reported to cause white rot. Our results suggest that C. torrendii and S. commune are intermediate between white-rot and brown-rot fungi, but at the same time they show characteristics of decay that resembles soft-rot. Both species cause weak wood decay and degrade all wood components but leave the middle lamella intact. Their gene content related to lignin degradation is reduced, similar to brown-rot fungi, but both have maintained a rich array of genes related to carbohydrate degradation, similar to white-rot fungi. These characteristics appear to have evolved from white-rot ancestors with stronger ligninolytic ability. Fistulina hepatica shows characteristics of brown rot both in terms of gene content related to wood decay found in its genome and the decay that it causes. However, genes related to cellulose degradation are still found in its genome, which is a plesiomorphic characteristic shared with its white-rot ancestors. Four wood degradation-related genes, homologs of which are frequently lost in brown-rot fungi, show signs of pseudogenization in the genome of F. hepatica. These results suggest that transition towards a brown rot lifestyle could be an ongoing process in F. hepatica. Our results reinforce the idea that wood decay mechanisms are more diverse than initially thought and that the dichotomous separation of wood decay mechanisms in Agaricomycotina into white rot and brown rot should be revisited.
  L3  - 10.1016/j.fgb.2015.02.002
  JF  - Fungal Genetics and Biology
  VL  - 
  IS  - 
  ER  -