Paracoccidioides brasiliensis Isolated from Nine-Banded Armadillos (Dasypus novemcinctus) Reveal Population Structure and Admixture in the Amazon Basin.

Paracoccidioides brasiliensis Isolated from Nine-Banded Armadillos (Dasypus novemcinctus) Reveal Population Structure and Admixture in the Amazon Basin.
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DOI:
10.3390/jof7010054
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发表时间:
2021-01-15
期刊:
Journal of fungi (Basel, Switzerland)
影响因子:
--
通讯作者:
Teixeira MM
Teixeira MM
中科院分区:
其他
文献类型:
--
作者:
Bagagli E;Matute DR;Garces HG;Tenório BG;Garces AG;Alves LGB;Yamauchi DH;Hrycyk MF;Barker BM;Teixeira MM

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副球孢子菌病(Paracoccidioidomycosis)是拉丁美洲的一种地方性真菌病,由至少五种副球孢子菌属的物种水平基因型引起,命名为P. lutzii,P. brasiliensis(S1a和S1b种群),P. americana,P. restrepiensis和P. venezuelensis。在这份手稿中,我们报告的Paracoccidioides种采样工作在巴西的两个不同地区的犰狳。我们对7个副球孢子菌属分离株的基因组进行了测序,并使用基因组学和群体遗传学进行了基因分型。我们发现,P. brasiliensis和P. lutzii都存在于亚马逊地区。此外,我们确定了两个Paracoccidioides分离物,似乎是在P. brasiliensis严格意义上的不同群体之间的混合物的结果。这两种分离株均从巴西中西部鲁氏疟原虫流行区的犰狳中回收。此外,来自人类患者的两个分离株也显示出混合物的证据。我们的研究结果表明,种群的P.brasiliensis狭义交换基因在自然界中。更一般地说,他们认为种群结构和物种内的混合物是致病真菌变异的重要来源。
Paracoccidioidomycosis is an endemic fungal disease to Latin America caused by at least five species-level genotypes of Paracoccidioides, named P. lutzii, P. brasiliensis (S1a and S1b populations), P. americana, P. restrepiensis, and P. venezuelensis. In this manuscript, we report on Paracoccidioides sp. sampling efforts in armadillos from two different areas in Brazil. We sequenced the genomes of seven Paracoccidioides isolates and used phylogenomics and populations genetics for genotyping. We found that P. brasiliensis and P. lutzii are both present in the Amazon region. Additionally, we identified two Paracoccidioides isolates that seem to be the result of admixture between divergent populations within P. brasiliensis sensu stricto. Both of these isolates were recovered from armadillos in a P. lutzii endemic area in Midwestern Brazil. Additionally, two isolates from human patients also show evidence of resulting from admixture. Our results suggest that the populations of P. brasiliensis sensu stricto exchange genes in nature. More generally, they suggest that population structure and admixture within species is an important source of variation for pathogenic fungi.
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