Coffea arabica is a polyploid species, carrying four copies of the eleven chromosomes typical of the genus Coffea, totaling 44 (2n = 4x = 44). Technically, it is described as an allotetraploid genome, the result of a hybridization between two diploid species, Coffea canephora and Coffea eugenioides, which doubled arabica's chromosome number to 44.
This genome sequence was derived from a Coffea arabica plant of the Red Bourbon variety.
The genome was sequenced with Illumina technology at the Istituto di Genomica Applicata in Udine, Italy. Given the inherent complexity of a tetraploid genome, it was sequenced using a hierarchical approach instead of a more common whole genome shotgun approach.
The coffee (C. arabica) genome, realized by an Italian partnership led by illycaffè and Lavazza, is made available for advancing research on a non-profit basis.
To respect the rights of the data producers and contributors, you acknowledge that by downloading the genome in scaffolds and annotation files below you are agreeing to the following principles:
Scalabrin, S., Toniutti, L., Di Gaspero, G. et al. A single polyploidization event at the origin of the tetraploid genome of Coffea arabica is responsible for the extremely low genetic variation in wild and cultivated germplasm. Sci Rep 10, 4642 (2020). https://doi.org/10.1038/s41598-020-61216-7
You also acknowledge that the data providers (Italian partnership led by illycaffè and Lavazza):