After reanalysing the original electron micrographs, as well as new ones, we discovered that, contrary to what was stated in the paper, the ciliary dilations in DCX-EMAP mutants do contain electron-dense material (arrow in new Fig. 7b). Furthermore, what we interpreted as a ciliary dilation without electron-dense material (Fig. 5d,e in the original Article) was a different structure, namely a swelling of the cilium. The swelling is distinguished from the dilation because it is located approximately half way between the dilation and the basal body (arrow in Fig. 7e). The swelling contains no electron-dense material. Swellings were also observed in wild-type cells (arrows in Fig. 7g).
Our misidentification of the swelling as a ciliary dilation does not contradict our hypothesis that the ciliary dilation may be the site of mechanotransduction in Johnson's organ. Rather, it weakens the argument by taking away one of the two lines of evidence in favour of the hypothesis. The other argument, that the essential mechanotransduction protein DCX-EMAP localizes to the ciliary dilation region, remains valid.
We thank Xin Liang for identifying this error and Monalisa Mishra, who helped with the follow-up electron microscopy.
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The online version of the original article can be found at 10.1038/ncomms1007
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Bechstedt, S., Albert, J., Kreil, D. et al. Correction: Corrigendum: A doublecortin containing microtubule-associated protein is implicated in mechanotransduction in Drosophila sensory cilia. Nat Commun 5, 3852 (2014). https://doi.org/10.1038/ncomms4852
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DOI: https://doi.org/10.1038/ncomms4852
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