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首页> 外文期刊>Mycologia >High levels of variation in ribosomal DNA sequences within and among spores of a natural population of the arbuscular mycorrhizal fungus Acaulospora colossica.
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High levels of variation in ribosomal DNA sequences within and among spores of a natural population of the arbuscular mycorrhizal fungus Acaulospora colossica.

机译:丛枝菌根真菌Acaulospora colossica自然种群的孢子内和孢子之间的核糖体DNA序列的高水平变异。

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摘要

Sequences of the nuclear rDNA ITS region were sampled from a natural population of an arbuscular mycorrhizal fungus, Acaulospora colossica. Genetic diversity was explored through three levels of sampling: within an individual (a single spore), between individuals of a single soil sample, and between individuals of different soil samples across a 36 m2 area. High levels of ITS sequence variation were discovered, and sequences from different spores and different soil samples were sometimes more similar than sequences of the same spore or soil sample. These results demonstrate a complex pattern of rDNA organization within a natural population of Glomalean fungi, and challenge ideas of individuality and collectivism in fungi.
机译:核rDNA ITS区的序列是从丛枝菌根真菌自然种群Acaulospora colossica的自然种群中取样的。通过三个采样级别来探索遗传多样性:在一个个体(单个孢子)内,单个土壤样品的个体之间以及在36平方米的区域中不同土壤样品的个体之间。发现了高水平的ITS序列变异,并且来自不同孢子和不同土壤样品的序列有时比相同孢子或土壤样品的序列更相似。这些结果证明了自然的Glomalean真菌种群中rDNA组织的复杂模式,并挑战了真菌的个性化和集体主义观念。

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