Evolutionary diversification of type-2 HDAC structure, function and regulation in Nicotiana tabacum

•We analyzed HD2 phylogeny in Solanaceaes and identified a unique deletion of the zinc finger sequence generating Group 2 HD2s from a Group 1 precursor.•We showed in tobacco that polyploïdization led to an increase of Group 2 HD2 expression at the expense of Gr1 HD2s, suggesting that the deletion of...

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