Fig. 7: Evolutionary model of the convergent selection history of Triticeae.
From: Striking convergent selection history of wheat and barley and its potential for breeding
a, An illustration of the evolutionary history of wheat and barley from A, B and D progenitors (top) and modern wild (dashed lines) and domesticated (plain lines) subspecies (that is, diploid wheats, DEW, DW, BW, tetraploid AG-type wheat (AGW) and tetraploid wild emmer wheat (WEW)), with associated spike illustrations (bottom). Modern wheat species (bottom) are reported with complete and simplified taxon names, as suggested by Sharma et al.6. b–d, A translational breeding approach comparing convergent signals of domestication and selection in wheat and barley obtained by the complementary CD-orthoSNP and orthoSweep approaches, for variants with a functional impact at the protein (HI variant HIV approach) and trait (comparative GWAS approach) levels (b), with examples of candidate genes with selective genomic footprints (CD-orthoSNP or orthoSweep) associated with a functional impact at the protein (HIV) or trait (GWAS) level (c), and the DCAF gene harbouring a convergent selection signal (in both CD-orthoSNP and orthoSweep analyses) associated with a functional impact on protein efficacy or function for which variants have been associated with grain weight in bread wheat (d).
