Sequencing of anthocyanin synthesis-related enzyme genes and screening of reference genes in leaves of four dominant subtropical forest tree species

Gene
Zheng-Chao YuChang-Lian Peng

Abstract

The young leaves generally accumulate a certain concentration anthocyanins in the dominant species of the subtropical forest, and the changes of anthocyanin synthesis-related enzyme genes expression levels had an important effect on the study photoprotection of anthocyanins in the young leaves of subtropical forests. The determination of anthocyanin synthesis-related enzyme gene sequences and the selection of appropriate reference genes provide a basis for analyzing the functional properties of anthocyanins. In this study, four dominant subtropical forest species (i.e., Schima superba, Castanopsis fissa, Acmena acuminatissima, Cryptocarya concinna) were taken as materials. To obtain the correct nucleotide sequences of anthocyanin-related enzymes, the nucleotide sequences of CHS, DFR and ANS in each dominant species were obtained by sequencing and comparison. Then, to select the most stable reference genes for leaves at different developmental stages and different light conditions, the expression levels of six reference genes, including 18S, Actin, GAPDH, TUB, EF1 and UBQ, were studied by real-time fluorescent quantitative PCR (qRT-PCR), and reference gene stability was analyzed by GeNorm and NormFinder software. The results sho...Continue Reading

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