How to use the Confirmed Ploidy Database

Using the search/sort filters

  • Using Filters - the Genus and Ploidy fields can be used to filter out and limit the data that is displayed.  For instance if you only want to see diploids, then select "Diploid" in the Ploidy field and then select apply.  You can use multiple filters to further refine your search.  For instance if you only want diploids that start with the letter "R".  Select Diploids, enter R into the starts with field and then select apply. 

    If you want to select more than one entry in a field, then Ctrl-click on more than one item in the list.

    NOTE: the filters do not auto clear, you must manually clear the information out of the filter fields in order to unlimit the entries that are displayed. Ctrl-click on a selected item in the Genus and Ploidy fields in order to remove it from the filter.

  • Searching for Specific Entries
    • "Orchid Name (Cultivar) Starts with..." -  this field is used to search for hybrids that start with one or more letters.  This can be used to limit the view to only orchids that start with a specific letter such as looking for all of the names starting with "M". 
    • "Orchid Name (Cultivar) Contains..." - this field is used to search for orchids with a specific word in the name of the hybrid and/or cultivar. 
  • Display Order - by default the database lists entries in ascending alphabetical order.  The Genus, Cultivar and Ploidy columns can be switched from ascending to descending by clicking on the blue heading.

Context on the data posted in the database

  • Hybrids listed without a specific cultivar – these are hybrids where the typical or original ploidy level of the registered cross is the one listed. Since a cross can obviously be remade with different parents of different ploidy levels, this information may not be accurate for newly remade crosses.  Diploid hybrids are most suspect as there are more and more undocumented colchicine treated populations of species and popular primary hybrids resulting in undocumented tetraploids that then get used for further breeding with other diploids. 
  • Confirmed Counts are only listed for specific cultivars.  Only qualified technicians are allowed to post information on confirmed counts to the database to ensure that all of the information is as accurate as possible.  When possible, photo's of the chromosomes are posted for reference.
  • Use of Chromosome Photos - all photo's of chromosomes are protected by US Copyright laws and are owned exclusively by the respective photographer/technician.  Please do not copy, re-post or re-publish any of the photo's without express written permission from the photographer/technician. 

Normal Chromosome Numbers by Genus

  • Diploid (2n) - 38 chromosomes
  • Triploid (3n) - 57 chromosomes
  • Tetraploid (4n) - 76 chromosomes

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