Free‐living bacteria have long been assumed to have little biogeographic signature because of their high potential for passive dispersal. Raphidiopsis raciborskii and Microcystis aeruginosa are free‐living cosmopolitan cyanobacteria with a probable tropical origin, that frequently form toxic blooms and are considered invasive species in middle latitudes. Despite these similarities, their phylogeographic patterns have seldom been directly compared. Our aim was to reconstruct the phylogeographic histories of R. raciborskii and M. aeruginosa, in order to explore whether their current distributions could be attributed to the same biogeographic events.

中文翻译：

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两种自由活动的世界性蓝细菌的比较系统地理学：对生物地理和纬度分布的见解

长期以来，人们一直认为自由活动的细菌具有很少的生物地理特征，因为它们具有很高的被动扩散潜力。Raphidiopsis raciborskii和Microcystis aeruginosa是生活在世界范围内的可能具有热带起源的大都会蓝细菌，经常形成有毒花并被认为是中纬度的入侵物种。尽管有这些相似之处，但很少将其谱系模式进行直接比较。我们的目的是重建R. raciborskii和M. aeruginosa的系统地理历史，以探讨它们当前的分布是否可归因于相同的生物地理事件。