Mostrar el registro sencillo del ítem
dc.contributor.author
Avni, Raz
dc.contributor.author
Zhao, Rongrong
dc.contributor.author
Pearce, Stephen
dc.contributor.author
Jun, Yan
dc.contributor.author
Uauy, Cristobal
dc.contributor.author
Tabbita, Facundo
dc.contributor.author
Fahima, Tzion
dc.contributor.author
Slade, Ann
dc.contributor.author
Dubcovsky, Jorge
dc.contributor.author
Distelfeld, Assaf
dc.date.available
2019-10-15T21:09:05Z
dc.date.issued
2014-02
dc.identifier.citation
Avni, Raz; Zhao, Rongrong; Pearce, Stephen; Jun, Yan; Uauy, Cristobal; et al.; Functional characterization of GPC-1 genes in hexaploid wheat; Springer; Planta; 239; 2; 2-2014; 313-324
dc.identifier.issn
1432-2048
dc.identifier.uri
http://hdl.handle.net/11336/85984
dc.description.abstract
In wheat, monocarpic senescence is a tightly regulated process during which nitrogen (N) and micronutrients stored pre-anthesis are remobilized from vegetative tissues to the developing grains. Recently, a close connection between senescence and remobilization was shown through the map-based cloning of the GPC (grain protein content) gene in wheat. GPC-B1 encodes a NAC transcription factor associated with earlier senescence and increased grain protein, iron and zinc content, and is deleted or non-functional in most commercial wheat varieties. In the current research, we identified 'loss of function' ethyl methanesulfonate mutants for the two GPC-B1 homoeologous genes; GPC-A1 and GPC-D1, in a hexaploid wheat mutant population. The single gpc-a1 and gpc-d1 mutants, the double gpc-1 mutant and control lines were grown under field conditions at four locations and were characterized for senescence, GPC, micronutrients and yield parameters. Our results show a significant delay in senescence in both the gpc-a1 and gpc-d1 single mutants and an even stronger effect in the gpc-1 double mutant in all the environments tested in this study. The accumulation of total N in the developing grains showed a similar increase in the control and gpc-1 plants until 25 days after anthesis (DAA) but at 41 and 60 DAA the control plants had higher grain N content than the gpc-1 mutants. At maturity, GPC in all mutants was significantly lower than in control plants while grain weight was unaffected. These results demonstrate that the GPC-A1 and GPC-D1 genes have a redundant function and play a major role in the regulation of monocarpic senescence and nutrient remobilization in wheat.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
GRAIN PROTEIN CONTENT
dc.subject
SENESCENCE
dc.subject
WHEAT
dc.subject
MUTANTS
dc.subject.classification
Biotecnología Agrícola y Biotecnología Alimentaria
dc.subject.classification
Biotecnología Agropecuaria
dc.subject.classification
CIENCIAS AGRÍCOLAS
dc.title
Functional characterization of GPC-1 genes in hexaploid wheat
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-10-10T17:50:59Z
dc.journal.volume
239
dc.journal.number
2
dc.journal.pagination
313-324
dc.journal.pais
Alemania
dc.journal.ciudad
Berlin
dc.description.fil
Fil: Avni, Raz. Tel Aviv University; Israel
dc.description.fil
Fil: Zhao, Rongrong. China Agricultural University; República de China. University of California at Davis; Estados Unidos
dc.description.fil
Fil: Pearce, Stephen. University of California at Davis; Estados Unidos
dc.description.fil
Fil: Jun, Yan. University of Haifa; Israel
dc.description.fil
Fil: Uauy, Cristobal. University of California at Davis; Estados Unidos
dc.description.fil
Fil: Tabbita, Facundo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. University of California at Davis; Estados Unidos
dc.description.fil
Fil: Fahima, Tzion. University of Haifa; Israel
dc.description.fil
Fil: Slade, Ann. Arcadia Biosciences Inc.; Estados Unidos
dc.description.fil
Fil: Dubcovsky, Jorge. University of California at Davis; Estados Unidos
dc.description.fil
Fil: Distelfeld, Assaf. Tel Aviv University; Israel
dc.journal.title
Planta
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s00425-013-1977-y
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007/s00425-013-1977-y
Archivos asociados