Lettuce Genome Resource
Lettuce Genome Resource Genome Center
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Lettuce (Lactuca sativa) is a valuable crop in the United States and worldwide. It has an annual farm-gate value of more than $2.4 billion and is one of the 10 most valuable crops in the United States. It also serves as an important reference species for research on the Compositae, one of the most diverse and successful families of Angiosperm plants.

The Lettuce Genome Resource (LGR) was developed as a portal to provide access to genetic and genomic resources for cultivated lettuce and its relatives. The data have been generated as a result of the Compositae Genome Project (CGP) and the Lettuce Genome Sequencing Project (LGSP). New data will be posted on this website as they become available, so please check back regularly. To obtain access to this website including the 'Search', 'Tools' and 'Downloads' sections, please register. Please access CoGe, NCBI, or Phytozome to download the complete genome sequence as below.

The data available on this website were generated as a result of the CGP and the LGSP. The paper describing the lettuce genome sequence has been published: Reyes Chin Wo et al. (2017) Nature Communications 8:14953. DOI: 10.1038/ncomms14953. The genome assembly described in this paper is available for download and BLAST on CoGe, Organism id36218, Lactuca sativa (lettuce)) and from NCBI under Bioproject PRJNA173551 (as soon as it is approved). It will also soon be available as part of the Phytozome genome collection. Additional publications related to this project can be found on the CGP website.

The CGP has been supported by the NSF Plant Genome Program and the USDA IFAFS and SCRI programs. The LGSP has been a collaboration between the Michelmore lab at UC Davis and the BGI, Shenzen. It was supported by the Lettuce Genome Sequencing Consortium comprised of Agrisemen, BGI, Enza Zaden, Gautier Semences, ISI Sementi, Monsanto Vegetable Seeds, Rijk Zwaan, Syngenta, Takii, Tozer Seeds, and Vilmorin.

Further refinement of the lettuce reference genome and sequencing of multiple L. sativa genotypes as well as related species is continuing as part of the International Lettuce Genomics Consortium (ILGC). This is a collaboration between UC Davis and Wageningen Agricultural University (WAU), The Netherlands along with many collaborators. The ILGC is funded by Bayer (Nunhems), Bejo (Agrisemen), Central Valley Seeds, Enza Zaden, Gautier Semences, Mission Ranches, Pinnacle Seed, Progeny Advanced Genetics, Ramiro Arnedo, Rijk Zwaan, Sakata, Syngenta, T&A Produce, Takii, Tozer Seeds, Vanguard Seeds, and Vilmorin as well as the Topconsortium voor Kennis en Innovatie Uitgangsmaterialen for studies performed at WAU.

Data and information released on this website are provided on an “as is” basis, without warranty of any kind, including, without limitation, the warranties of fitness for a particular purpose and non-infringement. Data and/or information may contain errors or may be incomplete.

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This website was developed as part of the Compositae Genome Project by Sebastian Reyes-Chin-Wo.

Last update: April 07 2020