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Promoter and regulator sequences $i (Ha ds10 G1):a gene lea of sunflower expressed exclusively in seeds from the maturation phase

Authors: Prieto-Dapena, P.; Almoguera, Concepción; Jordano, Juan;

Promoter and regulator sequences $i (Ha ds10 G1):a gene lea of sunflower expressed exclusively in seeds from the maturation phase

Abstract

[EN] The present invention discloses the isolation and characterization in transgenic tobacco plants of the promoter and regulator sequences of a gene LEA-I of sunflower, Ha ds10 G1. These sequences present characteristics which are extremely appropriate to be used in the modification of seeds (for example of reserve substances). The advantages of their possible use in transgenic plants are demonstrated through examples such as studies related to the accumulation and location of RNAm Ha ds10 in the homologous system. Said studies show both the high expression levels reached during embryogenesis from the early maturation phases and the absolute specificity of the seed, together with a homogenous location in embryos which is finally restricted essentially to the soft tissue in palisade of the cotyledons, a tissue specialized in the accumulation of reserve substances in the sunflower. [ES] La presente invención se describe el aislamiento y caracterización en plantas de tabaco transgénicas de las secuencias del promotor y regulador de un gen LEA-I de girasol, Ha DS10 G1. Estas secuencias presentan características que son muy apropiadas para ser utilizado en la modificación de las semillas (por ejemplo, de sustancias de reserva). Las ventajas de su posible uso en las plantas transgénicas se demuestra a través de ejemplos como los estudios relacionados con la acumulación y la ubicación de ARNm Ha DS10 en el sistema homólogo. Dichos estudios muestran tanto los niveles de expresión de alto alcanzado durante la embriogénesis de las fases de maduración temprana y la especificidad absoluta de la semilla, así como un lugar homogéneo en los embriones que finalmente se limitaba fundamentalmente a los tejidos blandos en la empalizada de los cotiledones, un tejido especializado en la acumulación de sustancias de reserva en el girasol.

Fecha de solicitud:23.01.1999.- Titular: Consejo Superior de Investigaciones Científicas (CSIC)

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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).
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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!
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