Article,

How to Grow a Tree: Plant Voltage-Dependent Cation Channels in the Spotlight of Evolution

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Trends Plant Sci, 26 (1): 41-52 (2021)Dreyer, Ingo Sussmilch, Frances C Fukushima, Kenji Riadi, Gonzalo Becker, Dirk Schultz, Jorg Hedrich, Rainer eng Research Support, Non-U.S. Gov't Review England 2020/09/02 Trends Plant Sci. 2021 Jan;26(1):41-52. doi: 10.1016/j.tplants.2020.07.011. Epub 2020 Aug 29..
DOI: 10.1016/j.tplants.2020.07.011

Abstract

Phylogenetic analysis can be a powerful tool for generating hypotheses regarding the evolution of physiological processes. Here, we provide an updated view of the evolution of the main cation channels in plant electrical signalling: the Shaker family of voltage-gated potassium channels and the two-pore cation (K(+)) channel (TPC1) family. Strikingly, the TPC1 family followed the same conservative evolutionary path as one particular subfamily of Shaker channels (K(out)) and remained highly invariant after terrestrialisation, suggesting that electrical signalling was, and remains, key to survival on land. We note that phylogenetic analyses can have pitfalls, which may lead to erroneous conclusions. To avoid these in the future, we suggest guidelines for analyses of ion channel evolution in plants.

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