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Recolector de Ciencia Abierta, RECOLECTA
Doctoral thesis . 2018
License: CC BY NC ND
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Recolector de Ciencia Abierta, RECOLECTA
Doctoral thesis . 2018
License: CC BY NC ND
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Mejora genética de maíz para senescencia retrasada "Stay Green"

Authors: Caicedo Villafuerte, Marlon Brainer;

Mejora genética de maíz para senescencia retrasada "Stay Green"

Abstract

La senescencia retrasada o “Stay Green” (SG) es un carácter deseable para la producción de los cultivos y está asociado con la producción de biomasa, resistencia al encamado y rendimiento. Esta investigación profundizó en los mecanismos genéticos y fisiológicos relacionados con la senescencia en maíz. Para ello, se evaluó el SG funcional de una amplia muestra de líneas de maíz templado, se identificaron QTL relacionados al carácter en una población MAGIC y se realizó un análisis de los cambios en la expresión génica durante la senescencia de la hoja. El SG funcional fue favorable para el rendimiento de grano, pero a costa del incremento de su humedad. Además, se propusieron dos genes candidatos asociados al índice de clorofila y se identificaron 1083 y 588 genes up and down regulated, respectivamente, durante la senescencia en las siete líneas. Los genes down y up regulated estuvieron relacionados con la fotosíntesis y con procesos catabólicos, respectivamente.

Country
Spain
Related Organizations
Keywords

Materias::Investigación::31 Ciencias agrarias::3103 Agronomía::310302 Hibridación de cultivos, Senescencia, Materias::Investigación::24 Ciencias de la vida::2417 Biología vegetal (botánica)::241714 Genética vegetal, :Investigación::24 Ciencias de la vida::2417 Biología vegetal (botánica)::241714 Genética vegetal [Materias], :Investigación::31 Ciencias agrarias::3103 Agronomía::310302 Hibridación de cultivos [Materias], Stay Green, Expresión génica

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green