Identification and characterization of contrasting sunflower genotypes to early leaf senescence process combining molecular and physiological studies (Helianthus annuus L.)

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Leaf senescence is a complex mechanism ruled by multiple genetic and environmental variables that affect crop yields. It is the last stage in leaf development, is characterized by an active decline in photosynthetic rate, nutrients recycling and cell death. The aim of this work was to identify contr...

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Autor principal: López Gialdi, A.I
Otros Autores: Moschen, S., Villán, C.S, López Fernández, M.P, Maldonado, S., Paniego, N., Heinz, R.A, Fernandez, P.
Formato: Capítulo de libro
Lenguaje:Inglés
Publicado: Elsevier Ireland Ltd 2016
Acceso en línea:Registro en Scopus
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100 1 |a López Gialdi, A.I. 
245 1 0 |a Identification and characterization of contrasting sunflower genotypes to early leaf senescence process combining molecular and physiological studies (Helianthus annuus L.) 
260 |b Elsevier Ireland Ltd  |c 2016 
270 1 0 |m Fernandez, P.; Instituto de Biotecnología, Centro de Investigaciones en Ciencias Agronómicas y Veterinarias, Instituto Nacional de Tecnología Agropecuaria, Nicolás Repetto y de los ReserosArgentina; email: fernandez.pc@inta.gob.ar 
506 |2 openaire  |e Política editorial 
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520 3 |a Leaf senescence is a complex mechanism ruled by multiple genetic and environmental variables that affect crop yields. It is the last stage in leaf development, is characterized by an active decline in photosynthetic rate, nutrients recycling and cell death. The aim of this work was to identify contrasting sunflower inbred lines differing in leaf senescence and to deepen the study of this process in sunflower. Ten sunflower genotypes, previously selected by physiological analysis from 150 inbred genotypes, were evaluated under field conditions through physiological, cytological and molecular analysis. The physiological measurement allowed the identification of two contrasting senescence inbred lines, R453 and B481-6, with an increase in yield in the senescence delayed genotype. These findings were confirmed by cytological and molecular analysis using TUNEL, genomic DNA gel electrophoresis, flow sorting and gene expression analysis by qPCR. These results allowed the selection of the two most promising contrasting genotypes, which enables future studies and the identification of new biomarkers associated to early senescence in sunflower. In addition, they allowed the tuning of cytological techniques for a non-model species and its integration with molecular variables. © 2016 Elsevier Ireland Ltd.  |l eng 
536 |a Detalles de la financiación: Agencia Nacional de Promoción Científica y Tecnológica, PICT-0139/2012, PICT 2011 1365, PIP CONICET-11220120100262 
536 |a Detalles de la financiación: This research was supported by, INTA-PNBIO1131022 and 1131043, ANPCyT PICT 2011 1365, PICT-0139/2012, PIP CONICET-11220120100262. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. 
593 |a Escuela de Ciencia y Tecnología, Universidad Nacional de San Martín, 25 de Mayo, San Martín, Buenos Aires, Argentina 
593 |a Consejo Nacional de Investigaciones Científicas y Técnicas, Av. Rivadavia 1917, Ciudad Autónoma de Buenos Aires, Argentina 
593 |a Instituto de Biotecnología, Centro de Investigaciones en Ciencias Agronómicas y Veterinarias, Instituto Nacional de Tecnología Agropecuaria, Nicolás Repetto y de los Reseros, Hurlingham, Buenos Aires, Argentina 
593 |a Facultad de Ciencias Exactas, Químicas y Naturales, Universidad Nacional de Misiones. Ruta Nacional 12 Km 7.5, Posadas, Misiones, Argentina 
593 |a Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Buenos Aires. Intendente Güiraldes 2160, Ciudad Autónoma de Buenos Aires, Buenos Aires, Argentina 
690 1 0 |a FLOW CYTOMETRY 
690 1 0 |a HELIANTHUS ANNUUS L. 
690 1 0 |a LEAF SENESCENCE 
690 1 0 |a PHYSIOLOGICAL ANALYSIS 
690 1 0 |a QPCR 
690 1 0 |a TUNEL 
690 1 0 |a GENETICS 
690 1 0 |a GENOTYPE 
690 1 0 |a GROWTH, DEVELOPMENT AND AGING 
690 1 0 |a PLANT LEAF 
690 1 0 |a SUNFLOWER 
690 1 0 |a GENOTYPE 
690 1 0 |a HELIANTHUS 
690 1 0 |a PLANT LEAVES 
700 1 |a Moschen, S. 
700 1 |a Villán, C.S. 
700 1 |a López Fernández, M.P. 
700 1 |a Maldonado, S. 
700 1 |a Paniego, N. 
700 1 |a Heinz, R.A. 
700 1 |a Fernandez, P. 
773 0 |d Elsevier Ireland Ltd, 2016  |g v. 250  |h pp. 40-50  |p Plant Sci.  |x 01689452  |w (AR-BaUEN)CENRE-6512  |t Plant Science 
856 4 1 |u https://www.scopus.com/inward/record.uri?eid=2-s2.0-84973483783&doi=10.1016%2fj.plantsci.2016.05.017&partnerID=40&md5=ed80de7803ac1d79e0910b1a0781ed9e  |y Registro en Scopus 
856 4 0 |u https://doi.org/10.1016/j.plantsci.2016.05.017  |y DOI 
856 4 0 |u https://hdl.handle.net/20.500.12110/paper_01689452_v250_n_p40_LopezGialdi  |y Handle 
856 4 0 |u https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01689452_v250_n_p40_LopezGialdi  |y Registro en la Biblioteca Digital 
961 |a paper_01689452_v250_n_p40_LopezGialdi  |b paper  |c PE 
962 |a info:eu-repo/semantics/article  |a info:ar-repo/semantics/artículo  |b info:eu-repo/semantics/publishedVersion 
999 |c 76699 

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