Ancient diversity of <i>Triticum aestivum</i> subspecies as source of novel loci for bread wheat improvement.

ABSTRACT: Ancient subspecies of hexaploid wheat, not yet subjected to intensive selection, harbor potentially valuable alternative genetic variability for the genetic improvement of modern cultivated bread wheat. To investigate these hitherto unexplored resources, we established a panel, currently unique, consisting of 190 accessions of Triticum aestivum belonging to five different neglected subspecies, compactum, sphaerococcum, macha, spelta, and vavilovii, with few aestivum references. The panel was genotyped through the iSelect Illumina arrays (20K and 25K) and phenotyped for 25 traits related to phenology, morphology, yield, and physiology for 4 years under field conditions. We found wide variability for all traits analyzed, both within and among

SUBMITTER: Barabaschi D 

PROVIDER: S-EPMC12014548 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature