Recent application of next-generation sequencing technology to Eurasian taxa of the primitive epidendroid orchid clade Epipactis section Epipactis has further advanced our knowledge of what has become a model system for studying the origins of numerous autogamous taxa from within arguably only one allogamous ancestral species, E. helleborine s.s. Current understanding of evolutionary pattern, species re-circumscription and speciation process within Epipactis is critically reviewed, emphasising the relevance of recent research based on next-generation sequencing and aiming to better understand taxa native to the British Isles. Conclusions include recognition that (1) the majority of named taxa currently widely viewed as species do not pass rigorous tests of species status, (2) two of the six unequivocal species native to Britain extend further east in Eurasia than was previously supposed, and none is endemic, (3) all scientifically defensible species of Epipactis have high frequencies of self-pollination (although autogamy is significantly less frequent in the ancestral species E. helleborine than in any of the remaining species derived from it), and (4) fully understanding the speciation process (including substantial increases in autogamy) will require us to further investigate not only pollinator behaviour and the diverse factors determining gynostemium morphology but also the equally diverse factors (including mycorrhizal specificity) likely to influence the invasion of novel, challenging habitat types.

中文翻译：

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下一代测序对陆生兰花属Epipactis的系统和进化的影响，特别是对不列颠群岛的参考

新一代测序技术的最新应用到原始epidendroid兰花进化的欧亚类群火烧兰属部分火烧兰属，进一步提高了我们的已成为一个模型系统知识从可以说只有一个allogamous祖先物种中，研究大量的自花受精类群的起源Ë 。helleborine ss当前对Epipactis内的进化模式，物种重新界定和物种形成过程的了解我们对其进行了严格的审查，强调了基于下一代测序的最新研究的相关性，旨在更好地了解不列颠群岛的原生类群。结论包括以下方面的认识：（1）目前被广泛认为是物种的大多数命名类群均未通过严格的物种状况测试；（2）英国本土的六个明确物种中的两个在欧亚大陆向东延伸，比以前想象的要远。 （3）所有科学上可辩护的Epipactis物种都有很高的自花授粉频率（尽管祖传物种E. helleborine中的同卵同卵发生频率明显降低 （4）充分了解物种形成过程（包括自生配子体的大量增加）将不仅要求我们进一步调查授粉媒介的行为和决定雌雄蕊形态的多种因素，而且还应进一步调查可能影响新颖的，具有挑战性的栖息地类型入侵的因素（包括菌根特异性）。