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Effect of allelic variation at the Glu-3 / Gli-1 loci on breadmaking quality parameters in hexaploid wheat [Triticum aestivum L.]
Bonafede, Marcos; Tranquilli, Gabriela; Pfluger, Laura Alicia; Peña, Roberto Javier; Dubcovsky, Jorge (2015-03)Low molecular weight glutenin subunits (LMW-GS) encoded by the Glu-3 loci are known to contribute to wheat breadmaking quality. However, the specific effect of individual Glu-3 alleles is not well understood due to their ... -
Effect of the Hope FT-B1 Allele on wheat heading time and yield components
Nitcher, Rebecca; Pearce, Stephen; Tranquilli, Gabriela; Xiaoqin, Zhang; Dubcovsky, Jorge (2014-09)Precise regulation of flowering time is critical for plant reproductive success and, in cereals, to maximize grain yields. Seasonal cues including temperature and day length are integrated to regulate the timing of flowering. ... -
Exogenous Gibberellins Induce Wheat Spike Development under Short Days Only in the Presence of VERNALIZATION1
Pearce, Stephen; Vanzetti, Leonardo Sebastian; Dubcovsky, Jorge (2013-11)The activation of the meristem identity gene VERNALIZATION1 (VRN1) is a critical regulatory point in wheat (Triticum spp.) flowering. In photoperiod-sensitive wheat varieties, VRN1 is expressed only under long days (LDs), ... -
Fine mapping and epistatic interactions of the vernalization gene VRN-D4 in hexaploid wheat
Kippes, Néstor Fabián; Zhu, Jie; Chen, Andrew; Vanzetti, Leonardo Sebastian; Lukaszewski, Adam; Nishida, Hidetaka; Kato, Kenji; Dvorak, Jan; Dubcovsky, Jorge (2014-02)Wheat vernalization requirement is mainly controlled by the VRN1, VRN2, VRN3, and VRN4 genes. The first three have been cloned and have homoeologs in all three genomes. VRN4 has been found only in the D genome (VRN-D4) and ... -
Identification and characterization of Rht25, a locus on chromosome arm 6AS affecting wheat plant height, heading time, and spike development
Youngjun Mo; Vanzetti, Leonardo Sebastian; Hale, Iago; Spagnolo, Emiliano J.; Guidobaldi, Fabio; Al-Oboudi, Jassim; Odle, Natalie; Pearce, Stephen; Helguera, Marcelo; Dubcovsky, Jorge (2018)Understanding genes regulating wheat plant height is important to optimize harvest index and maximize grain yield. In modern wheat varieties grown under high-input conditions, the gibberellin-insensitive semi-dwarfing ... -
Mapping a region within the 1RS.1BL translocation in common wheat affecting grain yield and canopy water status
Howell, Tyson; Hale, Iago; Jankuloski, Ljupcho; Bonafede, Marcos; Gilbert, Matthew; Dubcovsky, Jorge (Springer, 2014-12)The translocation of the short arm of rye (Secale cereale L.) chromosome one (1RS) onto wheat (Triticum aestivum L.) chromosome 1B (1RS.1BL) is used in wheat breeding programs worldwide due to its positive effect on yield, ... -
Mapping causal mutations by exome sequencing in a wheat TILLING population: a tall mutant case study
Mo, Youngjun; Howell, Tyson; Vasquez Gross, Hans; De Haro, Luis Alejandro; Dubcovsky, Jorge; Pearce, Stephen (Springer, 2018-04)Forward genetic screens of induced mutant plant populations are powerful tools to identify genes underlying phenotypes of interest. Using traditional techniques, mapping causative mutations from forward screens is a lengthy, ... -
Mapping QTL for resistance to new virulent races of wheat stripe rust from two Argentinean wheat cultivars
Cobo, Nicolás; Pfluger, Laura Alicia; Chen, Xianming; Dubcovsky, Jorge (Crop Science Society of America, 2018)During the last two decades, new virulent and aggressive races of Puccinia striiformis Westend. f. sp. tritici (Pst) have spread worldwide, causing devastating epidemics and prompting the search for new sources of resistance ... -
Physiological and environmental dissection of developmental drivers for predicting heading date in wheat based on Vrn1, Ppd1 and Eps-D1 allelic characterization
Jardón, Mariana; Alvarez Prado, Santiago; Vanzetti, Leonardo Sebastian; Gonzalez, Fernanda Gabriela; Pérez Gianmarco, Thomas; Gomez, Dionisio Tomas; Serrago, Román A.; Dubcovsky, Jorge; Miralles, Daniel J. (Elsevier, 2023-03)Heading time is a critical feature determining wheat performance. Over the years, average global temperatures have increased, leading to adjustments in agronomic practices such as sowing dates and cultivar election. Bread ... -
Regulation of Zn and Fe transporters by the GPC1gene during early wheat monocarpic senescence
Pearce, Stephen; Tabbita, Facundo; Cantu, Dario; Buffalo, Vince; Avni, Raz; Vazquez Gross, Hans; Zhao, Rongrong; Conley, Christopher J.; Distelfeld, Assaf; Dubcovsky, Jorge (2014-12)Background; During wheat senescence, leaf components are degraded in a coordinated manner, releasing amino acids and micronutrients which are subsequently transported to the developing grain. We have previously shown that ... -
The chromosome region including the earliness per se locus Eps-Am1 affects the duration of early developmental phases and spikelet number in diploid wheat
Lewis, Silvina; Faricelli, M.E.; Appendino, M.L.; Valárik, M.; Dubcovsky, Jorge (Society for Experimental Biology, 2008-10)Earliness per se genes are those that regulate flowering time independently of vernalization and photoperiod, and are important for the fine tuning of flowering time and for the wide adaptation of wheat to different ... -
Transcriptional signatures of wheat inforescence development
VanGessel, Carl; Hamilton, James; Tabbita, Facundo; Dubcovsky, Jorge; Pearce, Sthepen (Springer Nature, 2022-10-14)In order to maintain global food security, it will be necessary to increase yields of the cereal crops that provide most of the calories and protein for the world’s population, which includes common wheat (Triticum aestivum ... -
Updated guidelines for gene nomenclature in wheat
Boden, S.A.; McIntosh, R.A.; Uauy, C.; Krattinger, S.G.; Dubcovsky, Jorge; Rogers, W.J.; Xia, X.C.; Badaeva, E.D.; Bentley, A.R.; Brown-Guedira, G.; Gonzalez, Fernanda Gabriela; Zhang, Y. (Springer Nature, 2023-03)The last decade has seen a proliferation in genomic resources for wheat, including reference- and pan-genome assemblies with gene annotations, which provide new opportunities to detect, characterise, and describe genes ... -
Wheat plant height locus RHT25 encodes a PLATZ transcription factor that interacts with DELLA (RHT1)
Zhang, Junli; LI, Chengxia; Zhang, Wenjun; Zhang, Xiaoqin; Mo, Youngjun; Tranquilli, Gabriela; Vanzetti, Leonardo Sebastian; Dubcovsky, Jorge (National Academy of Sciences, 2023-05-01)Plant height is an important agronomic trait with a significant impact on grain yield, as demonstrated by the positive effect of the REDUCED HEIGHT (RHT) dwarfing alleles (Rht1b) on lodging and harvest index in the “Green ...