Isolation and expression analysis of tuberous root development related genes in Rehmannia glutinosa.

Molecular Biology Reports
Peng SunXianen Li


As one kind of important modified storage organs, tuberous roots are attractive for their economic and biological values. Although considerable progresses have been made in the past, molecular information regarding the tuberous root development is still limited. In this study, we focused on the molecular profiling of the tuberous root development of Rehmannia glutinosa. Suppression subtractive hybridization technology was employed to compare gene expression between adventitious root and developing tuberous root. As a result, a tuberous root subtractive library was constructed and 199 development-related unique expressed sequence tags were identified, which represent different groups of genes involved in metabolism, protein synthesis, protein fate, cell fate, signaling, transcription and development, etc. In order to further validate the obtained result, 18 genes were selected for expression analysis and the genes most likely being involved in tuberous root development were discussed. Our present study provided the first molecular profiling of tuberous root development-related genes in Rehmannia glutinosa, which will establish the basis for future deciphering the tuberous root development mechanism.


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Dec 4, 2012·International Journal of Molecular Sciences·Peng SunXianen Li

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