De novo transcriptome and phytochemical analyses reveal differentially expressed genes and characteristic secondary metabolites in the original oolong tea (Camellia sinensis) cultivar 'Tieguanyin' compared with cultivar 'Benshan'.

ABSTRACT:

Background

The two original plants of the oolong tea cultivar ('Tieguanyin') are "Wei shuo" 'Tieguanyin'-TGY (Wei) and "Wang shuo" 'Tieguanyin'-TGY (Wang). Another cultivar, 'Benshan' (BS), is similar to TGY in its aroma, taste, and genetic make-up, but it lacks the "Yin Rhyme" flavor. We aimed to identify differences in biochemical characteristics and gene expression among these tea plants.

Results

The results of spectrophotometric, high performance liquid chromatography (HPLC), and gas chromatography-mass spectrometry (GC-MS) analyses revealed that TGY (Wei) and TGY (Wang) had deeper purple-colored leaves and higher contents of anthocyanin, catechins, caffeine, and limonene compared with BS. Analyses of transcriptome data revealed 12,420 differentially expressed genes (DEG

SUBMITTER: Guo Y 

PROVIDER: S-EPMC6446291 | biostudies-literature | 2019 Apr

REPOSITORIES: biostudies-literature