RT Journal Article
T1 Genetic dissection of agronomic and quality traits based on association mapping and genomic selection approaches in durum wheat grown in Southern Spain
A1 Mérida García, Rosa
A1 Liu, Guozheng Liu
A1 He, Sang
A1 González-Dugo, Victoria
A1 Dorado Pérez, Gabriel
A1 Gálvez-Rojas, Sergio
A1 Solís, Ignacio
A1 Zarco Tejada, Pablo
A1 Reif, Jochen C.
A1 Hernández, Pilar
K1 Trigo duro - Genética
AB Climatic conditions affect the growth, development and final crop production. As wheat is of paramount importance as a staple crop in the human diet, there is a growing need to study its abiotic stress adaptation through the performance of key breeding traits. New and complementary approaches, such as genome-wide association studies (GWAS) and genomic selection (GS), are used for the dissection of different agronomic traits. The present study focused on the dissection of agronomic and quality traits of interest (initial agronomic score, yield, gluten index, sedimentation index, specific weight, whole grain protein and yellow colour) assessed in a panel of 179 durum wheat lines (Triticum durum Desf.), grown under rainfed conditions in different Mediterranean environments in Southern Spain (Andalusia). The findings show a total of 37 marker-trait associations (MTAs) which affect phenotype expression for three quality traits (specific weight, gluten and sedimentation indexes). MTAs could be mapped on the A and B durum wheat subgenomes (on chromosomes 1A, 1B, 2A, 2B and 3A) through the recently available bread wheat reference assembly (IWGSC RefSeqv1). Two of the MTAs found for quality traits (gluten index and SDS) corresponded to the known Glu-B1 and Glu-A1 loci, for which candidate genes corresponding to high molecular weight glutenin subunits could be located. The GS prediction ability values obtained from the breeding materials analyzed showed promising results for traits as grain protein content, sedimentation and gluten indexes, which can be used in plant breeding programs.
PB PLOS One
YR 2019
FD 2019-02-27
LK https://hdl.handle.net/10630/36434
UL https://hdl.handle.net/10630/36434
LA eng
NO Mérida-García R, Liu G, He S, Gonzalez-Dugo V, Dorado G, Gálvez S, et al. (2019) Genetic dissection of agronomic and quality traits based on association mapping and genomic selection approaches in durum wheat grown in Southern Spain. PLoS ONE 14(2): e0211718. https://doi.org/10.1371/journal.pone.0211718
NO This work was funded by project P12-AGR-0482 to PH from Junta de Andalucía (Andalusian Regional Government), Spain (Co-funded by FEDER). PH is supported by project AGL2016-77149-C2-1-P from MINECO (Spanish Ministry of Economy, Industry and Competitiveness).
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 20 ene 2026