Martin_2008_Nature_452_88

Reference

Title : The genome of Laccaria bicolor provides insights into mycorrhizal symbiosis - Martin_2008_Nature_452_88
Author(s) : Martin F , Aerts A , Ahren D , Brun A , Danchin EG , Duchaussoy F , Gibon J , Kohler A , Lindquist E , Pereda V , Salamov A , Shapiro HJ , Wuyts J , Blaudez D , Buee M , Brokstein P , Canback B , Cohen D , Courty PE , Coutinho PM , Delaruelle C , Detter JC , Deveau A , Difazio S , Duplessis S , Fraissinet-Tachet L , Lucic E , Frey-Klett P , Fourrey C , Feussner I , Gay G , Grimwood J , Hoegger PJ , Jain P , Kilaru S , Labbe J , Lin YC , Legue V , Le Tacon F , Marmeisse R , Melayah D , Montanini B , Muratet M , Nehls U , Niculita-Hirzel H , Oudot-Le Secq MP , Peter M , Quesneville H , Rajashekar B , Reich M , Rouhier N , Schmutz J , Yin T , Chalot M , Henrissat B , Kues U , Lucas S , Van de Peer Y , Podila GK , Polle A , Pukkila PJ , Richardson PM , Rouze P , Sanders IR , Stajich JE , Tunlid A , Tuskan G , Grigoriev IV
Ref : Nature , 452 :88 , 2008
Abstract :

Mycorrhizal symbioses--the union of roots and soil fungi--are universal in terrestrial ecosystems and may have been fundamental to land colonization by plants. Boreal, temperate and montane forests all depend on ectomycorrhizae. Identification of the primary factors that regulate symbiotic development and metabolic activity will therefore open the door to understanding the role of ectomycorrhizae in plant development and physiology, allowing the full ecological significance of this symbiosis to be explored. Here we report the genome sequence of the ectomycorrhizal basidiomycete Laccaria bicolor (Fig. 1) and highlight gene sets involved in rhizosphere colonization and symbiosis. This 65-megabase genome assembly contains approximately 20,000 predicted protein-encoding genes and a very large number of transposons and repeated sequences. We detected unexpected genomic features, most notably a battery of effector-type small secreted proteins (SSPs) with unknown function, several of which are only expressed in symbiotic tissues. The most highly expressed SSP accumulates in the proliferating hyphae colonizing the host root. The ectomycorrhizae-specific SSPs probably have a decisive role in the establishment of the symbiosis. The unexpected observation that the genome of L. bicolor lacks carbohydrate-active enzymes involved in degradation of plant cell walls, but maintains the ability to degrade non-plant cell wall polysaccharides, reveals the dual saprotrophic and biotrophic lifestyle of the mycorrhizal fungus that enables it to grow within both soil and living plant roots. The predicted gene inventory of the L. bicolor genome, therefore, points to previously unknown mechanisms of symbiosis operating in biotrophic mycorrhizal fungi. The availability of this genome provides an unparalleled opportunity to develop a deeper understanding of the processes by which symbionts interact with plants within their ecosystem to perform vital functions in the carbon and nitrogen cycles that are fundamental to sustainable plant productivity.

PubMedSearch : Martin_2008_Nature_452_88
PubMedID: 18322534
Gene_locus related to this paper: lacbs-b0cns1 , lacbs-b0cpl4 , lacbs-b0cr62 , lacbs-b0cr66 , lacbs-b0csq9 , lacbs-b0ct56 , lacbs-b0ctt5 , lacbs-b0cuw1 , lacbs-b0cv23 , lacbs-b0cxm7 , lacbs-b0cz37 , lacbs-b0czx3 , lacbs-b0d0z5 , lacbs-b0d4i0 , lacbs-b0d4j3 , lacbs-b0d5n6 , lacbs-b0d8k0 , lacbs-b0d263 , lacbs-b0dhh1 , lacbs-b0dkp6 , lacbs-b0dmr2 , lacbs-b0dmt4 , lacbs-b0dsx5 , lacbs-b0dt05 , lacbs-b0dtw4 , lacbs-b0du88 , lacbs-b0dsl6

Related information

Gene_locus lacbs-b0cns1    lacbs-b0cpl4    lacbs-b0cr62    lacbs-b0cr66    lacbs-b0csq9    lacbs-b0ct56    lacbs-b0ctt5    lacbs-b0cuw1    lacbs-b0cv23    lacbs-b0cxm7    lacbs-b0cz37    lacbs-b0czx3    lacbs-b0d0z5    lacbs-b0d4i0    lacbs-b0d4j3    lacbs-b0d5n6    lacbs-b0d8k0    lacbs-b0d263    lacbs-b0dhh1    lacbs-b0dkp6    lacbs-b0dmr2    lacbs-b0dmt4    lacbs-b0dsx5    lacbs-b0dt05    lacbs-b0dtw4    lacbs-b0du88    lacbs-b0dsl6
Gene_locus_frgt lacbs-b0d278    lacbs-b0d279    lacbs-b0duz0    lacbs-b0e152

Citations formats

Martin F, Aerts A, Ahren D, Brun A, Danchin EG, Duchaussoy F, Gibon J, Kohler A, Lindquist E, Pereda V, Salamov A, Shapiro HJ, Wuyts J, Blaudez D, Buee M, Brokstein P, Canback B, Cohen D, Courty PE, Coutinho PM, Delaruelle C, Detter JC, Deveau A, Difazio S, Duplessis S, Fraissinet-Tachet L, Lucic E, Frey-Klett P, Fourrey C, Feussner I, Gay G, Grimwood J, Hoegger PJ, Jain P, Kilaru S, Labbe J, Lin YC, Legue V, Le Tacon F, Marmeisse R, Melayah D, Montanini B, Muratet M, Nehls U, Niculita-Hirzel H, Oudot-Le Secq MP, Peter M, Quesneville H, Rajashekar B, Reich M, Rouhier N, Schmutz J, Yin T, Chalot M, Henrissat B, Kues U, Lucas S, Van de Peer Y, Podila GK, Polle A, Pukkila PJ, Richardson PM, Rouze P, Sanders IR, Stajich JE, Tunlid A, Tuskan G, Grigoriev IV (2008)
The genome of Laccaria bicolor provides insights into mycorrhizal symbiosis
Nature 452 :88

Martin F, Aerts A, Ahren D, Brun A, Danchin EG, Duchaussoy F, Gibon J, Kohler A, Lindquist E, Pereda V, Salamov A, Shapiro HJ, Wuyts J, Blaudez D, Buee M, Brokstein P, Canback B, Cohen D, Courty PE, Coutinho PM, Delaruelle C, Detter JC, Deveau A, Difazio S, Duplessis S, Fraissinet-Tachet L, Lucic E, Frey-Klett P, Fourrey C, Feussner I, Gay G, Grimwood J, Hoegger PJ, Jain P, Kilaru S, Labbe J, Lin YC, Legue V, Le Tacon F, Marmeisse R, Melayah D, Montanini B, Muratet M, Nehls U, Niculita-Hirzel H, Oudot-Le Secq MP, Peter M, Quesneville H, Rajashekar B, Reich M, Rouhier N, Schmutz J, Yin T, Chalot M, Henrissat B, Kues U, Lucas S, Van de Peer Y, Podila GK, Polle A, Pukkila PJ, Richardson PM, Rouze P, Sanders IR, Stajich JE, Tunlid A, Tuskan G, Grigoriev IV (2008)
Nature 452 :88