A heatmap was created using TBtools to exhibit the expression patterns of
PtrDBBs. RNAseq data of
PtrDBB genes in 14 tissues were collected according to Rodgers-Melnick et al. [51 (
link)]. The NCBI Primer-BLAST tool was used to design the primers of the 12
PtrDBB genes, which could amplify the 100–200 bp PCR products (
Additional file: Table S4). Total RNA was isolated from the samples of each tissue using an
RNAprep Pure Plant Kit (TransGen Biotech, Beijing, China) according to the user manual. Total RNAs were used for complementary cDNA synthesis using
SuperScript III transcriptase (Invitrogen, Carlsbad, CA, USA) in accordance with the manufacturer’s instructions. qRT-PCR analysis was performed on a Bio-Rad
CFX96 using the
Light Cycler 480 SYBR Green Master Mix (TaKaRa, Dalian, China). The PCR reaction conditions were as follows: 95 °C for 30 s, followed by 40 cycles of 95 °C for 5 s, and 60 °C for 30 s. The quantitative RT-PCR data were analyzed using the 2
−ΔΔCt method. The mean expression values and SE values were calculated from the results of three independent experiments.
Wu R., Li Y., Wang L., Li Z., Wu R., Xu K, & Liu Y. (2024). The DBB Family in Populus trichocarpa: Identification, Characterization, Evolution and Expression Profiles. Molecules, 29(8), 1823.