Dataset Information


Domestication quantitative trait loci in Triticum dicoccoides, the progenitor of wheat.

ABSTRACT: Wild emmer wheat, Triticum dicoccoides, is the progenitor of modern tetraploid and hexaploid cultivated wheats. Our objective was to map domestication-related quantitative trait loci (QTL) in T. dicoccoides. The studied traits include brittle rachis, heading date, plant height, grain size, yield, and yield components. Our mapping population was derived from a cross between T. dicoccoides and Triticum durum. Approximately 70 domestication QTL effects were detected, nonrandomly distributed among and along chromosomes. Seven domestication syndrome factors were proposed, each affecting 5-11 traits. We showed: (i) clustering and strong effects of some QTLs; (ii) remarkable genomic association of strong domestication-related QTLs with gene-rich regions; and (iii) unexpected predominance of QTL effects in the A genome. The A genome of wheat may have played a more important role than the B genome during domestication evolution. The cryptic beneficial alleles at specific QTLs derived from T. dicoccoides may contribute to wheat and cereal improvement.

PROVIDER: S-EPMC151368 | BioStudies |

REPOSITORIES: biostudies

Similar Datasets

2015-01-01 | S-EPMC4471722 | BioStudies
2018-01-01 | S-EPMC6230948 | BioStudies
2020-01-01 | S-EPMC7683402 | BioStudies
2016-01-01 | S-EPMC4832586 | BioStudies
| GSE25940 | GEO
2015-01-01 | S-EPMC4698569 | BioStudies
2013-01-01 | S-EPMC3671283 | BioStudies
2020-01-01 | S-EPMC7156093 | BioStudies
2019-01-01 | S-EPMC6477094 | BioStudies
2020-01-01 | S-EPMC6975532 | BioStudies