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Hotspots in the genomic architecture of field drought responses in wheat as breeding targets

S. Gálvez, R. Mérida-García, C. Camino, P. Borrill, M. Abrouk, RH. Ramírez-González, S. Biyiklioglu, F. Amil-Ruiz, IWGSC, G. Dorado, H. Budak, V. Gonzalez-Dugo, PJ. Zarco-Tejada, R. Appels, C. Uauy, P. Hernandez,

. 2019 ; 19 (2) : 295-309. [pub] 20181116

Jazyk angličtina Země Německo

Typ dokumentu časopisecké články

Perzistentní odkaz   https://www.medvik.cz/link/bmc19028074

Grantová podpora
P12-AGR-0482 Consejería de Economía, Innovación, Ciencia y Empleo, Junta de Andalucía
BIO2011-15237-E Comisión Interministerial de Ciencia y Tecnología
AGL2016-77149-C2-1-P Comisión Interministerial de Ciencia y Tecnología
CGL2016-79790-P Comisión Interministerial de Ciencia y Tecnología
Salvador-Madariaga Comisión Interministerial de Ciencia y Tecnología
(BB/P016855/1), GEN (BB/P013511/1) Biotechnology and Biological Sciences Research Council - United Kingdom
BB/M014045/1 Biotechnology and Biological Sciences Research Council - United Kingdom
-- University of Montana

E-zdroje Online Plný text

NLK ProQuest Central od 2002-04-01 do Před 1 rokem
Medline Complete (EBSCOhost) od 2003-07-01 do Před 1 rokem
Health & Medicine (ProQuest) od 2002-04-01 do Před 1 rokem
Public Health Database (ProQuest) od 2002-04-01 do Před 1 rokem

Odkazy

PubMed 30446876
DOI 10.1007/s10142-018-0639-3
Knihovny.cz E-zdroje

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.

Citace poskytuje Crossref.org

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