Large-scale genome sequencing of mycorrhizal fungi provides insights into the early evolution of symbiotic traits.
Large-scale genome sequencing of mycorrhizal fungi provides insights into the early evolution of symbiotic traits.
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DOI：
10.1038/s41467-020-18795-w
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发表时间：
2020-10-12
影响因子：
16.6
通讯作者：
Martin FM
中科院分区：
文献类型：
--
作者：
Miyauchi S;Kiss E;Kuo A;Drula E;Kohler A;Sánchez-García M;Morin E;Andreopoulos B;Barry KW;Bonito G;Buée M;Carver A;Chen C;Cichocki N;Clum A;Culley D;Crous PW;Fauchery L;Girlanda M;Hayes RD;Kéri Z;LaButti K;Lipzen A;Lombard V;Magnuson J;Maillard F;Murat C;Nolan M;Ohm RA;Pangilinan J;Pereira MF;Perotto S;Peter M;Pfister S;Riley R;Sitrit Y;Stielow JB;Szöllősi G;Žifčáková L;Štursová M;Spatafora JW;Tedersoo L;Vaario LM;Yamada A;Yan M;Wang P;Xu J;Bruns T;Baldrian P;Vilgalys R;Dunand C;Henrissat B;Grigoriev IV;Hibbett D;Nagy LG;Martin FM
菌根真菌是陆地生态系统中的互惠共生者，在养分获取中起着至关重要的作用。菌根共生体在毛霉亚门、子囊菌门和担子菌门的多个谱系中反复出现。菌根真菌从土壤有机质中获取碳的能力存在着相当大的差异。在这里，我们提出了一个综合分析的135个真菌基因组从73腐，内生和致病物种，62种菌根，包括29个新的菌根基因组。本研究样品生态占主导地位的真菌公会，以前没有共生基因组，包括外生菌根Russulales，Thelephorales和Cantharellales。我们的分析表明，从腐养到共生的转变涉及（1）作用于木质素和纤维素的降解酶的广泛损失，（2）腐养祖先中存在的基因的共同选择以实现新的共生功能，（3）新的，谱系特异性共生诱导基因的多样化，（4）转座因子的增殖;（5）外生菌根群体趋同起源的遗传创新差异。菌根共生体在不同的真菌谱系中反复进化。一个大的真菌基因组分析揭示了与从腐养到共生的过渡相关的基因组变化，包括外生菌根公会收敛起源的基础上的不同遗传创新。
Mycorrhizal fungi are mutualists that play crucial roles in nutrient acquisition in terrestrial ecosystems. Mycorrhizal symbioses arose repeatedly across multiple lineages of Mucoromycotina, Ascomycota, and Basidiomycota. Considerable variation exists in the capacity of mycorrhizal fungi to acquire carbon from soil organic matter. Here, we present a combined analysis of 135 fungal genomes from 73 saprotrophic, endophytic and pathogenic species, and 62 mycorrhizal species, including 29 new mycorrhizal genomes. This study samples ecologically dominant fungal guilds for which there were previously no symbiotic genomes available, including ectomycorrhizal Russulales, Thelephorales and Cantharellales. Our analyses show that transitions from saprotrophy to symbiosis involve (1) widespread losses of degrading enzymes acting on lignin and cellulose, (2) co-option of genes present in saprotrophic ancestors to fulfill new symbiotic functions, (3) diversification of novel, lineage-specific symbiosis-induced genes, (4) proliferation of transposable elements and (5) divergent genetic innovations underlying the convergent origins of the ectomycorrhizal guild. Mycorrhizal symbioses have evolved repeatedly in diverse fungal lineages. A large phylogenomic analysis sheds light on genomic changes associated with transitions from saprotrophy to symbiosis, including divergent genetic innovations underlying the convergent origins of the ectomycorrhizal guild.
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影响因子：
10.7
作者：
Castresana, J
通讯作者：
Castresana, J
影响因子：
14.9
作者：
Grigoriev IV;Nikitin R;Haridas S;Kuo A;Ohm R;Otillar R;Riley R;Salamov A;Zhao X;Korzeniewski F;Smirnova T;Nordberg H;Dubchak I;Shabalov I
通讯作者：
Shabalov I
影响因子：
5.2
作者：
Churchland C;Grayston SJ
通讯作者：
Grayston SJ
影响因子：
9.4
作者：
Bodeker, Inga T. M.;Clemmensen, Karina E.;Lindahl, Bjorn D.
通讯作者：
Lindahl, Bjorn D.
影响因子：
48
作者：
Chin, Chen-Shan;Peluso, Paul;Schatz, Michael C.
通讯作者：
Schatz, Michael C.