This is a TxDb package created for Coffea arabica (coffee). The genome used for this package is Cara_1.0 retrieved from NCBI
remotes::install_github("pipaber/TxDb.Carabica.NCBI")
library(TxDb.Carabica.NCBI)
txdb <- TxDb.Carabica.NCBI
# Extract genes
g = genes(txdb)
g
# Extract exons by genes (GRangesList)
ex = exonsBy(txdb, by = "gene")
# Extract transcripts
tr = transcriptsBy(txdb, by = "gene")