Title |
A candidate gene based approach validates Md-PG1 as the main responsible for a QTL impacting fruit texture in apple (Malus x domesticaBorkh)
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Published in |
BMC Plant Biology, March 2013
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DOI | 10.1186/1471-2229-13-37 |
Pubmed ID | |
Authors |
Sara Longhi, Martha T Hamblin, Livio Trainotti, Cameron P Peace, Riccardo Velasco, Fabrizio Costa |
Abstract |
Apple is a widely cultivated fruit crop for its quality properties and extended storability. Among the several quality factors, texture is the most important and appreciated, and within the apple variety panorama the cortex texture shows a broad range of variability. Anatomically these variations depend on degradation events occurring in both fruit primary cell wall and middle lamella. This physiological process is regulated by an enzymatic network generally encoded by large gene families, among which polygalacturonase is devoted to the depolymerization of pectin. In apple, Md-PG1, a key gene belonging to the polygalacturonase gene family, was mapped on chromosome 10 and co-localized within the statistical interval of a major hot spot QTL associated to several fruit texture sub-phenotypes. |
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