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Characterization of sugary-1 (su-1) sugary enhancer (se) kernels in segregating sweet corn populations

By: La Bonte, D.R.
Contributor(s): Juvik, J.A [coaut.].
Material type: materialTypeLabelArticlePublisher: 1990ISSN: 0003-1062.Subject(s): Analysis | Anatomy | Breeding methods | Carbohydrates | Cereals | Crops | Developmental stages | Economic plants | Feed crops | Feed grasses | Fruit vegetables | Glumiflorae | Grain crops | Gramineae | Grasses | Industrial crops | Kernels AGROVOC | Methods | Monocotyledons | Oil crops | Organic compounds | Physiological functions | Pigments | Plant anatomy | Plant developmental stages | Plant genetics and breeding | Plants | Population | Seeds | Starch crops | Storage organs | Sugar crops | Sugars AGROVOC | Vegetable crops | Zea mays AGROVOC | Genetics AGROVOCDDC classification: 90-051442 In: Journal of the American Society for Horticultural Science (USA). (Jan 1990). v. 115(1) p. 153-157Summary: A single-kernel, sugar analysis technique was used to study the genetic relationship between morphological and metabolic traits previously associated with expression of the sugary enhancer (se) endosperm mutation in a su-1 sweet corn (Zea mays L.) background. Analysis of sucrose and total carotene content in su-1 kernel populations segregating for se showed that light-yellow kernel color was a reliable phenotypic indicator for kernels homozygous for the se gene. High levels of kernel maltose was not always indicative of su-1 se kernels in mature (55 days after pollination) kernel populations. Characteristic high levels of percent moisture in su-1 se kernels at 28 and 35 days post-pollination were identified as an expression of high sugar content. Kernels homozygous for su-1 se were also found to weigh less at maturity than su-1 Se kernels, and se was found to be partially expressed in a heterozygous conditionCollection: AGRIS Collection
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Article CIMMYT Knowledge Center: John Woolston Library

Lic. Jose Juan Caballero Flores

 

AGRIS Collection 90-051442 (Browse shelf) Available
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A single-kernel, sugar analysis technique was used to study the genetic relationship between morphological and metabolic traits previously associated with expression of the sugary enhancer (se) endosperm mutation in a su-1 sweet corn (Zea mays L.) background. Analysis of sucrose and total carotene content in su-1 kernel populations segregating for se showed that light-yellow kernel color was a reliable phenotypic indicator for kernels homozygous for the se gene. High levels of kernel maltose was not always indicative of su-1 se kernels in mature (55 days after pollination) kernel populations. Characteristic high levels of percent moisture in su-1 se kernels at 28 and 35 days post-pollination were identified as an expression of high sugar content. Kernels homozygous for su-1 se were also found to weigh less at maturity than su-1 Se kernels, and se was found to be partially expressed in a heterozygous condition

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