RT Journal Article
T1 Hotspots in the genomic architecture of field drought responses in wheat as breeding targets.
A1 Gálvez-Rojas, Sergio
A1 Mérida García, Rosa
A1 Camino-González, Carlos Luis
A1 Borrill, Philippa
A1 Abrouk, Michael
A1 Ramírez-González, Ricardo
A1 Biyiklioglu, Sezgi
A1 Amil-Ruiz, Francisco
A1 International Wheat Genome Sequencing Consortium, 
A1 Dorado-Pérez, Gabriel
A1 Budak, Hikmet
A1 González-Dugo, Victoria
A1 Zarco Tejada, Pablo
A1 Appels, Rudi
A1 Uauy, Cristóbal
A1 Hernández Molina, Pilar
K1 Expresión génica
AB Wheat can adapt to most agricultural conditions across temperate regions. This success is the result of phenotypic plasticity conferred by a large and complex genome composed of three homoeologous genomes (A, B, and D). Although drought is a major cause of yield and quality loss in wheat, the adaptive mechanisms and gene networks underlying drought responses in the field remain largely unknown. Here, we addressed this by utilizing an interdisciplinary approach involving field water status phenotyping, sampling, and gene expression analyses. Overall, changes at the transcriptional level were reflected in plant spectral traits amenable to field-level physiological measurements, although changes in photosynthesis-related pathways were found likely to be under more complex post-transcriptional control. Examining homoeologous genes with a 1:1:1 relationship across the A, B, and D genomes (triads), we revealed a complex genomic architecture for drought responses under field conditions, involving gene homoeolog specialization, multiple gene clusters, gene families, miRNAs, and transcription factors coordinating these responses. Our results provide a new focus for genomics-assisted breeding of drought-tolerant wheat cultivars.
PB Springer Nature
YR 2019
FD 2019
LK https://hdl.handle.net/10630/36169
UL https://hdl.handle.net/10630/36169
LA eng
NO Gálvez, S., Mérida-García, R., Camino, C. et al. Hotspots in the genomic architecture of field drought responses in wheat as breeding targets. Funct Integr Genomics 19, 295–309 (2019). https://doi.org/10.1007/s10142-018-0639-3  Download citation
NO This work was funded by project P12-AGR-0482 from Junta de Andalucía, Spain (Co-funded by FEDER); projects BIO2011-15237-E, AGL2016-77149-C2-1-P, and CGL2016-79790-P from MINECO (Spanish Ministry of Economy, Industry and Competitiveness); UK Biotechnology and Biological Sciences Research Council (BBSRC) through Designing Future Wheat (BB/P016855/1), GEN (BB/P013511/1), and an Anniversary Future Leaders Fellowship to PB (BB/M014045/1). HB was supported by the Montana Plant Science Endowment fund.
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 25 ene 2026