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Macroevolutionary patterns of salt tolerance in angiosperms
Author(s) -
Lindell Bromham
Publication year - 2014
Publication title -
annals of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.567
H-Index - 176
eISSN - 1095-8290
pISSN - 0305-7364
DOI - 10.1093/aob/mcu229
Subject(s) - biology , halophyte , macroevolution , phylogenetic tree , lineage (genetic) , evolutionary biology , phylogenetics , adaptation (eye) , extinction (optical mineralogy) , ecology , salinity , genetics , gene , paleontology , neuroscience
Halophytes are rare, with only 0·25% of angiosperm species able to complete their life cycle in saline conditions. This could be interpreted as evidence that salt tolerance is difficult to evolve. However, consideration of the phylogenetic distribution of halophytes paints a different picture: salt tolerance has evolved independently in many different lineages, and halophytes are widely distributed across angiosperm families. In this Viewpoint, I will consider what phylogenetic analysis of halophytes can tell us about the macroevolution of salt tolerance.

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