Patterns of coevolution between ambrosia beetle mycangia and the Ceratocystidaceae, with five new fungal genera and seven new species.
Patterns of coevolution between ambrosia beetle mycangia and the Ceratocystidaceae, with five new fungal genera and seven new species.
复制标题
DOI：
10.3767/persoonia.2020.44.02
复制
发表时间：
2020-06
期刊：
影响因子：
9.1
通讯作者：
Kietzka GJ
中科院分区：
文献类型：
--
作者：
Mayers CG;Harrington TC;Masuya H;Jordal BH;McNew DL;Shih HH;Roets F;Kietzka GJ
Ambrosia甲虫在边材隧道中种植专门的真菌，并使用称为mycangia的口袋状器官携带真菌品种的繁殖体。豚草属真菌选择性地在菌囊中生长，这是共生的核心，但真菌品种和菌囊之间的协同进化历史却知之甚少。真菌科Ceratocystidaceae以前包括三个ambrosial属（Ambrosiella，Meredithiella和Phialophoropsis），每一个都由三个远亲的ambrosia甲虫部落之一养殖，具有独特且相对较大的mycangium类型。这三个属的系统发育关系和进化历史的研究扩大了以前未研究的豚草真菌与第四mycangium类型，即部落Scolytoplatypodini。利用ITS rDNA条形码和6个位点（28 S rDNA、18 S rDNA、tef 1-α、tub、mcm 7和rpl 1）的串联数据集，建立了Ceratocystidaceae的系统发育学，包括Inodoromyces interjectus gen. & sp. nov.，一种与该科关系密切的非食草动物。Scolytoplatypodini的前背板盘菌囊的三个较小的形态变体与Ceratocystidaceae的三个分支中的ambrosia真菌相关：Wolfgangiella gen. nov.，Toshionella gen. nov.，和Ambrosiella remansi sp. nov.密切相关的物种，而不是共生体的ambrosia甲虫是由Catunica adiposa gen. & comb. nov.和Solaloca norvegica gen. & comb. nov.容纳ambrosial属和它们的系统发育位置之间的分歧形态非ambrosial属建议在Ceratocystidaceae三驯化事件。估计分歧日期的ambrosia真菌和mycangia表明，Scolytoplatypodini mycangia可能是第一个获得Ceratocystidaceae共生体和其他ambrosial真菌属后不久出现的新的mycangium类型的进化。没有证据表明恢复到非ambrosial生活方式的mycangial共生体。
Ambrosia beetles farm specialised fungi in sapwood tunnels and use pocket-like organs called mycangia to carry propagules of the fungal cultivars. Ambrosia fungi selectively grow in mycangia, which is central to the symbiosis, but the history of coevolution between fungal cultivars and mycangia is poorly understood. The fungal family Ceratocystidaceae previously included three ambrosial genera (Ambrosiella, Meredithiella, and Phialophoropsis), each farmed by one of three distantly related tribes of ambrosia beetles with unique and relatively large mycangium types. Studies on the phylogenetic relationships and evolutionary histories of these three genera were expanded with the previously unstudied ambrosia fungi associated with a fourth mycangium type, that of the tribe Scolytoplatypodini. Using ITS rDNA barcoding and a concatenated dataset of six loci (28S rDNA, 18S rDNA, tef1-α, tub, mcm7, and rpl1), a comprehensive phylogeny of the family Ceratocystidaceae was developed, including Inodoromyces interjectus gen. & sp. nov., a non-ambrosial species that is closely related to the family. Three minor morphological variants of the pronotal disk mycangium of the Scolytoplatypodini were associated with ambrosia fungi in three respective clades of Ceratocystidaceae: Wolfgangiella gen. nov., Toshionella gen. nov., and Ambrosiella remansi sp. nov. Closely-related species that are not symbionts of ambrosia beetles are accommodated by Catunica adiposa gen. & comb. nov. and Solaloca norvegica gen. & comb. nov. The divergent morphology of the ambrosial genera and their phylogenetic placement among non-ambrosial genera suggest three domestication events in the Ceratocystidaceae. Estimated divergence dates for the ambrosia fungi and mycangia suggest that Scolytoplatypodini mycangia may have been the first to acquire Ceratocystidaceae symbionts and other ambrosial fungal genera emerged shortly after the evolution of new mycangium types. There is no evidence of reversion to a non-ambrosial lifestyle in the mycangial symbionts.
登录
查看更多内容
影响因子：
4.2
作者：
Castrillo, Louela A.;Griggs, Michael H.;Vandenberg, John D.
通讯作者：
Vandenberg, John D.
影响因子：
2.3
作者：
Causton, CE;Peck, SB;Landry, B
通讯作者：
Landry, B
影响因子：
6
作者：
Berbee, Mary L.;Taylor, John W.
通讯作者：
Taylor, John W.
DOI：
10.1016/j.diagmicrobio.2013.10.018
发表时间：
2014-02-01
影响因子：
2.9
作者：
Agarwal, Kshitij;Kathuria, Shallu;Chowdhary, Anuradha
通讯作者：
Chowdhary, Anuradha
DOI：
10.1073/pnas.222313099
发表时间：
2002-11-12
影响因子：
11.1
作者：
Aanen, DK;Eggleton, P;Boomsma, JJ
通讯作者：
Boomsma, JJ