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Assessing the contribution of glycinebetaine to environmental stress tolerance in sorghum

By: Mickelbart, M.V | Centro Internacional de Mejoramiento de Maiz y Trigo (CIMMYT), Mexico DF (Mexico).
Contributor(s): Ejeta, G [coaut.] | Goldsbrough, P.B [coaut.] | Joly, R.J [coaut.] | Rhodes, D [coaut.] | Ribaut, J.M.|Poland, D [eds.].
Material type: materialTypeLabelBookAnalytics: Show analyticsPublisher: Mexico, DF (Mexico) CIMMYT : 2000ISBN: 970-648-052-8.Subject(s): Cereals | Drought resistance | Drought stress AGROVOC | Environmental factors | Genetic control | Molecular genetics | Research projects | Sorghum | CIMMYT | Yields AGROVOC | Plant breeding AGROVOCDDC classification: 631.53 Summary: Sorghum genotypes differ in the amount of glycinebetaine, a compatible osmotic solute, they accumulate under osmotic stress. To examine the contribution of glycinebetaine to osmotic stress tolerance, a recombinant inbred population has been developed from parents that contrast for glycinebetaine accumulation. Analysis of this population indicates that a single major gene conditions glycinebetaine accumulation and that modifiers affect the final level of this compound. This population is being used to map the genes responsible for variation in glycinebetaine content. Near isogenic lines have been developed that either accumulate or lack glycinebetaine. Analysis of these lines, as well as the segregating population, is in progress to evaluate the impact of this solute on tolerance of sorghu11l to a number of environmental stresses.Collection: CIMMYT Publications Collection
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Conference proceedings CIMMYT Knowledge Center: John Woolston Library

Lic. Jose Juan Caballero Flores

 

CIMMYT Publications Collection 631.53 RIB (Browse shelf) 1 Available H629165
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Sorghum genotypes differ in the amount of glycinebetaine, a compatible osmotic solute, they accumulate under osmotic stress. To examine the contribution of glycinebetaine to osmotic stress tolerance, a recombinant inbred population has been developed from parents that contrast for glycinebetaine accumulation. Analysis of this population indicates that a single major gene conditions glycinebetaine accumulation and that modifiers affect the final level of this compound. This population is being used to map the genes responsible for variation in glycinebetaine content. Near isogenic lines have been developed that either accumulate or lack glycinebetaine. Analysis of these lines, as well as the segregating population, is in progress to evaluate the impact of this solute on tolerance of sorghu11l to a number of environmental stresses.

English

0101|AL-ABC Program|AGRIS 0101

Jose Juan Caballero

CIMMYT Publications Collection

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Centro Internacional de Mejoramiento de Maíz y Trigo (CIMMYT) © Copyright 2015. Carretera México-Veracruz. Km. 45, El Batán, Texcoco, México, C.P. 56237.
Lunes –Viernes 9:00 am. 17:00 pm. Si tiene cualquier pregunta, contáctenos a CIMMYT-Knowledge-Center@cgiar.org