期刊
PLANTA
卷 233, 期 5, 页码 933-945出版社
SPRINGER
DOI: 10.1007/s00425-011-1350-y
关键词
Periderm; Phellem; Potato (Solanum tuberosum); Potato tuber; Suberin; Tuber skin
资金
- Spanish Ministerio de Ciencia y Tecnologia [AGL2003-00416]
- Ministerio de Innovacion y Ciencia [AGL2009-13745]
Potato (Solanum tuberosum) tubers are underground storage organs covered by the skin or periderm, a suberized layer that protects inner flesh from dehydration and pathogens. Understanding the molecular processes associated with periderm formation is of great importance for a better knowledge of this protective tissue and for improving the storage life of tubers. Here, to isolate new candidate genes for potato periderm, a suppression subtractive hybridization library from potato skin was performed. This library yielded a comprehensive list of 108 candidate genes that were manually sorted in functional categories according to the main cellular and metabolic processes in periderm. As expected, the list contains Suberin and wax genes, including some genes with a demonstrated role in the biosynthesis of these cell wall aliphatic compounds. Moreover, Regulation and Stress and defence genes are highly abundant in the library in general agreement with previous potato skin proteomic studies. The putative function of the genes in periderm is discussed.
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