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Updated: May 29, 2026

OLIgo Mass Profiling (OLIMP) of Extracellular Polysaccharides
Published on: June 20, 2010
Variability of cell wall polysaccharides composition and hemicellulose enzymatic profile in an apple progeny
D Galvez-Lopez1, F Laurens, B Quéméner
1INRA, UR1268 Biopolymères Interactions Assemblages, BP 71627, F-44316 Nantes, France.
Abstract:
The genetic variability of apple cell walls polysaccharides chemical composition and structure was assessed in a progeny of 141 individuals harvested over 2 years. The variability of the hemicelluloses oligosaccharides released by glucanase was analyzed by MALDI-TOF MS. The genetic contribution was distinguished from harvest year as well as from parental crossing patterns and scab resistance selection. Results showed that harvest year had a major impact on cell wall polysaccharide composition and structure. Within each harvest, genetic effect impact more significantly cell wall polysaccharide chemistry than does reciprocal crossing or early scab selection. Uronic acids, glucose, galactose and xylose contents as well as some glucomannan and xyloglucan structures have a high heritability. This first cell wall chemotyping of an apple progeny opens the way for future searches of genetic markers for the chemical variability of cell wall polysaccharides.
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