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首页> 外文期刊>Trends in Microbiology >Are We Overestimating Protistan Diversity in Nature?
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Are We Overestimating Protistan Diversity in Nature?

机译：我们是否高估了普罗斯坦的多样性本质上？

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摘要

Documenting the immense diversity of single-celled, eukaryotic organisms (protists) has been a formidable challenge for ecologists. These species were originally defined by morphological criteria, but shortcomings of the morphospecies concept, and a bewildering array of sizes and cellular attributes, has made constructing a taxonomy that is useful for ecologists nearly impossible. Consequently, physiological and genetic information has been integrated to address these shortcomings, and to develop the framework of a unifying taxonomy. DNA sequence information, in particular, has revolutionized studies of protistan diversity. However, the exponential increase in sequence-based protistan species richness published from field surveys in recent years raises the question of whether we have moved beyond characterizing species-level diversity and begun to reveal intraspecies diversity. The answer to that question appears to be 'yes', at least for some protistan lineages. The need to document such microdiversity may be justified, but it is important for protistologists to recognize and acknowledge that possibility, and its consequences.
机译：记录单细胞的巨大多样性，真核生物（保护者）对生态学家来说是一个强大的挑战。这些物种最初由形态标准定义，但形态学概念的缺点以及令人困惑的尺寸和蜂窝属性阵列，已经制定了对生态学家几乎不可能有用的分类学。因此，生理和遗传信息已被整合以解决这些缺点，并制定统一分类的框架。尤其是DNA序列信息已经彻底改变了普罗斯坦多样性。然而，近年来从田间调查公布的基于序列的普通物种丰富度的指数增加提出了我们是否已经超越了物种级别多样性并开始揭示有条不紊多样性的问题。该问题的答案似乎是“是”，至少对于一些普拉斯坦谱系。将这些微观兴趣的需要可能是合理的，但营养学家识别和承认这种可能性以及其后果非常重要。

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  • 来源
    《Trends in Microbiology》 |2019年第3期|共9页
  • 作者

    Caron David A.; Hu Sarah K.;

  • 作者单位

    Univ Southern Calif Dept Biol Sci 3616 Trousdale Pkwy Los Angeles CA 90089 USA;

    Univ Southern Calif Dept Biol Sci 3616 Trousdale Pkwy Los Angeles CA 90089 USA;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 微生物学;
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