CCDB is a community resource. If you are aware of any missing data or if any of the counts are erroneous please submit it to the forms submit new counts, or report erroneous counts.
The Chromosome Counts Database (CCDB, version web/CCDB_1.66) is a comprehensive community resource for plant chromosome numbers. CCDB aims to combine existing data resources into an extensive central database that will be updated regularly by the community.
To start browsing for chromosome numbers, use the the search boxes below, or the Browse page.