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.
Methods that were used for generating the original and the updated version of the Bourbon reference genome are reported in the following articles, respectively:
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
Scalabrin, S., Magris, G., Liva, M. et al. A chromosome-scale assembly reveals chromosomal aberrations and exchanges generating genetic diversity in Coffea arabica germplasm. Nat Commun 15, 463 (2024). https://doi.org/10.1038/s41467-023-44449-8
The coffee (C. arabica) genome, realized by an Italian partnership led by illycaffè and Lavazza with the collaboration of World Coffee Research, 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 and related 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
Scalabrin, S., Magris, G., Liva, M. et al. A chromosome-scale assembly reveals chromosomal aberrations and exchanges generating genetic diversity in Coffea arabica germplasm. Nat Commun 15, 463 (2024). https://doi.org/10.1038/s41467-023-44449-8
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