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. 2014 Apr 29;12:30. doi: 10.1186/1741-7007-12-30

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Copyright © 2014 Pfefferli et al.; licensee BioMed Central Ltd.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Morpholino-mediated knockdown of chd4a, mta2, and the two RBBP4 orthologs rbb4 and rbb4l results in the reduction in regenerative outgrowth. (A-E) The dorsal half of fins was injected with control (A), chd4a translational blocking (B), chd4a splice blocking (C), mta2 translational blocking (D), and rbb4 + rbb4l translational blocking (E) vivo-morpholinos (MOs). The uninjected ventral half was used as an internal control to assess normal outgrowth. The left panels show fins shortly after injection at 3 dpa and the right panels show the same fins at 24 hours post-injection (hpi). The control MO does not affect regenerative outgrowth compared with the uninjected ventral side of the fins. Injection of the antisense MOs specific for chd4a, mta2, or the two RBBP4 orthologs rbb4 and rbb4l resulted in reduction in regenerative outgrowth compared with the uninjected side. (F) Percentage of regenerative outgrowth after MO injection relative to the uninjected control side of the fins. Error bars represent the SEM. n = 10. *P < 0.01.