Black pepper (Piper nigrum) is known as the “King of Spices”
which is a perennial flowering vine in the family Piperaceae,
native to the Malabar Coast of India, cultivated for its small,
round fruits known as peppercorns, which are widely used
as a spice. The plant is a woody climber that can grow up to
10–15 meters by attaching to supports like trees or poles.
All the transcriptomic datasets of black pepper were retrieved
from the public repositories.
These datasets were initially subjected to preprocessing using Cutadapt
to remove adapter sequences and low-quality reads. The clean reads were
then aligned to the reference genome (Hu et al., 2019) using HISAT2. For the identification
of long non-coding RNAs (lncRNAs), three computational tools such as CPC2,
PLEK, and FEELnc were employed to ensure comprehensive prediction. CircPlant
was used to predict circular RNAs (circRNAs) from the transcriptomic data.
To explore the regulatory interaction network, used the psRNATarget web server(Kumar et al., 2023).
This integrated workflow provides a reliable and curated dataset of lncRNAs,
circRNAs, and their interactions in black pepper, accessible through this database.