Biogeography of mutualistic fungi cultivated by leafcutter ants
Biogeography of mutualistic fungi cultivated by leafcutter ants
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切叶蚁培育的共生真菌的生物地理学
DOI：
10.1111/mec.14431
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发表时间：
2017
影响因子：
4.9
通讯作者：
Cooper, Michael
中科院分区：
文献类型：
--
作者：
Mueller, Ulrich G.;Ishak, Heather D.;Bruschi, Sofia M.;Smith, Chad C.;Herman, Jacob J.;Solomon, Scott E.;Mikheyev, Alexander S.;Rabeling, Christian;Scott, Jarrod J.;Cooper, Michael
切叶蚁繁殖共同进化的真菌作为食物。切叶蚁（Atta、Acromyrmex）有近 50 种，分布范围从阿根廷到美国，其中南美洲南部的物种多样性最为丰富。我们利用 DNA 序列和对切叶蚁分布范围内收集的 474 个品种的微卫星标记分析，阐明了切叶蚁培育的真菌的生物地理学。真菌品种属于两个进化枝（进化枝-A 和进化枝-B）。主要且广泛分布的 Clade-A 品种形成三个基因型簇，其相对流行范围对应于南美洲南部、南美洲北部、中美洲和北美洲。进化支 A 种群之间的混合支持单个物种（Lucocoprinus gogylophorus）内的遗传交换。一些以割草作为真菌栽培基质的切叶蚁物种专门培养 B 型真菌，而偏爱双子叶植物的切叶蚁似乎专门培养 A 型真菌。同域切叶刀物种之间的品种共享经常发生，因此 Atta 的品种与 Acromyrmex 的品种没有区别。专攻 B 型真菌的切叶虫仅出现在南美洲。 A Clade-A 真菌的多样性在南美洲最大，但在中美洲和北美洲则最小。库斯内佐夫-福勒假说预测了南美洲最大的品种多样性，即切叶蚁起源于南美洲亚热带，只有双子叶植物特化的切叶蚁从南美洲迁徙出来，但通过假设切叶蚁多次从其他非切叶真菌生长蚂蚁那里获得了新的品种，品种多样性也与最近提出的中美洲起源假说相一致。 在他们从中美洲穿越南美洲的迁徙过程中。我们根据切叶蚁及其品种起源的估计日期来评估这些生物地理学假设。
Leafcutter ants propagate co‐evolving fungi for food. The nearly 50 species of leafcutter ants (Atta,Acromyrmex) range from Argentina to the United States, with the greatest species diversity in southern South America. We elucidate the biogeography of fungi cultivated by leafcutter ants using DNA sequence and microsatellite‐marker analyses of 474 cultivars collected across the leafcutter range. Fungal cultivars belong to two clades (Clade‐A and Clade‐B). The dominant and widespread Clade‐A cultivars form three genotype clusters, with their relative prevalence corresponding to southern South America, northern South America, Central and North America. Admixture between Clade‐A populations supports genetic exchange within a single species,Leucocoprinus gongylophorus. Some leafcutter species that cut grass as fungicultural substrate are specialized to cultivate Clade‐B fungi, whereas leafcutters preferring dicot plants appear specialized on Clade‐A fungi. Cultivar sharing between sympatric leafcutter species occurs frequently such that cultivars ofAttaare not distinct from those ofAcromyrmex. Leafcutters specialized on Clade‐B fungi occur only in South America. Diversity of Clade‐A fungi is greatest in South America, but minimal in Central and North America. Maximum cultivar diversity in South America is predicted by the Kusnezov–Fowler hypothesis that leafcutter ants originated in subtropical South America and only dicot‐specialized leafcutter ants migrated out of South America, but the cultivar diversity becomes also compatible with a recently proposed hypothesis of a Central American origin by postulating that leafcutter ants acquired novel cultivars many times from other nonleafcutter fungus‐growing ants during their migrations from Central America across South America. We evaluate these biogeographic hypotheses in the light of estimated dates for the origins of leafcutter ants and their cultivars.
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影响因子：
3.3
作者：
J. K. Pritchard;Matthew Stephens;Peter Donnelly
通讯作者：
J. K. Pritchard;Matthew Stephens;Peter Donnelly
切叶蚁（Attini，蚁科）培养的共生真菌的多态性微卫星标记
影响因子：
7.7
作者：
J. Scott;MATTHEW K. Weskin;Michael Cooper;U. Mueller
通讯作者：
U. Mueller
通过真菌间作构建嵌合花园：切叶蚁 Atta texana（Attini，蚁科）的共生选择实验
影响因子：
2.3
作者：
R. Sen;Heather D. Ishak;Trevor R. Kniffin;U. Mueller
通讯作者：
U. Mueller
克隆更高产的真菌菌株：真菌生长蚂蚁物种形成的一个因素
DOI：
10.1007/bf01941781
发表时间：
1986
期刊：
Experientia
影响因子：
--
作者：
D. J. Stradling;R. J. Powell
通讯作者：
R. J. Powell
影响因子：
2.9
作者：
Kooij PW;Poulsen M;Schiøtt M;Boomsma JJ
通讯作者：
Boomsma JJ