Genomic landscape of a relict fir-associated fungus reveals rapid convergent adaptation towards endophytism
Genomic landscape of a relict fir-associated fungus reveals rapid convergent adaptation towards endophytism
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残存冷杉相关真菌的基因组景观揭示了对内生菌的快速趋同适应
DOI：
10.1038/s41396-021-01176-6
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发表时间：
2021-12
期刊：
影响因子：
--
通讯作者：
徐良雄
中科院分区：
文献类型：
--
作者：
徐良雄
Comparative and pan-genomic analyses of the endophytic fungusPezicula neosporulosa(Helotiales, Ascomycota) from needles of the relict fir,Abies beshanzuensis, showed expansions of carbohydrate metabolism and secondary metabolite biosynthetic genes characteristic for unrelated plant-beneficial helotialean, such as dark septate endophytes and ericoid mycorrhizal fungi. The current species within the relatively young Pliocene genusPeziculaare predominantly saprotrophic, whileP. neosporulosalacks such features. To understand the genomic background of this putatively convergent evolution, we performed population analyses of 77P. neosporulosaisolates. This revealed a mosaic structure of a dozen non-recombining and highly genetically polymorphic subpopulations with a unique mating system structure. We found that one idiomorph of a probably duplicatedmat1-2gene was found in putatively heterothallic isolates, while the other co-occurred withmat1-1locus suggesting homothallic reproduction for these strains. Moreover, 24 and 81 genes implicated in plant cell-wall degradation and secondary metabolite biosynthesis, respectively, showed signatures of the balancing selection. These findings highlight the evolutionary pattern of the two gene families for allowing the fungus a rapid adaptation towards endophytism and facilitating diverse symbiotic interactions.
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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：
4.4
作者：
Yang Yang-Yang;Xiaobao Liu;Jimiao Cai;Yipeng Chen;Boxun Li;Zhikai Guo;Guixiu Huang
通讯作者：
Yang Yang-Yang;Xiaobao Liu;Jimiao Cai;Yipeng Chen;Boxun Li;Zhikai Guo;Guixiu Huang
影响因子：
16.6
作者：
Mesny F;Miyauchi S;Thiergart T;Pickel B;Atanasova L;Karlsson M;Hüttel B;Barry KW;Haridas S;Chen C;Bauer D;Andreopoulos W;Pangilinan J;LaButti K;Riley R;Lipzen A;Clum A;Drula E;Henrissat B;Kohler A;Grigoriev IV;Martin FM;Hacquard S
通讯作者：
Hacquard S
DOI：
10.1073/pnas.1710455114
发表时间：
2017-10-31
影响因子：
11.1
作者：
Almario J;Jeena G;Wunder J;Langen G;Zuccaro A;Coupland G;Bucher M
通讯作者：
Bucher M