Polyploidy did not predate the evolution of nodulation in all legumes.

BACKGROUND: Several lines of evidence indicate that polyploidy occurred by around 54 million years ago, early in the history of legume evolution, but it has not been known whether this event was confined to the papilionoid subfamily (Papilionoideae; e.g. beans, medics, lupins) or occurred earlier. D...

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Bibliographic Details
Main Authors: Steven B Cannon, Dan Ilut, Andrew D Farmer, Sonja L Maki, Gregory D May, Susan R Singer, Jeff J Doyle
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2010-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC2905438?pdf=render