Guangxi Forestry Research Institute of Science

Nanning, China

Guangxi Forestry Research Institute of Science

Nanning, China
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Chen H.,Guangxi Forestry Research Institute of Science | Yang Z.,Guangxi Forestry Research Institute of Science | Hu Y.,Guangxi University | Tan J.,Guangxi Forestry Research Institute of Science | And 3 more authors.
Trees - Structure and Function | Year: 2015

Key message: Evaluation and selection of reference genes inPinus massonianaL. (PM) for gene expression studies of various tissues, floral organ development, and abiotic stress.Abstract: An important prerequisite for obtaining accurate gene expression results using quantitative real-time PCR is the selection of a reference gene or a group of genes having a highly stable level of expression. Pinus massoniana L. (PM) is the predominant fast-growing timber forest tree species in southern China. In this study of PM, we evaluated various tissues, flowers in different developmental phases, leaves from a cultivar with insect resistance, and leaves from plants under several types of abiotic stresses. Comprehensive Analysis was performed using BestKeeper, Normfinder, geNorm, and RefFinder software to select the most stable reference gene or gene group from among 25 candidate genes in these samples. The results showed that different experimental conditions require the use of different reference genes: ACT1 could be used as a reference gene for all samples in this study; UBI4 was the best gene for various tissues and zinc stress; CYP was the most stable gene for leaves from insect-resistant materials and Pb stress; Fbox and UBI11 were the best reference genes for salt stress; Fbox + RRP8, ARF + TUBA, and EF1B + IDH were the best reference groups for drought stress, low temperature stress, and flowers in different developmental phases, respectively. This study presents a reliable selection of reference genes for Masson pine, and the conclusions are meaningful for improving the accuracy of expression analyses in future molecular biology studies. © 2015 Springer-Verlag Berlin Heidelberg

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