autopolyploid /ô′tōpol″iploid/ [Gk, autos + polyploos, many times, eidos form] , 1. an individual, organism, strain, or cell that has more than two genetically identical or nearly identical sets of chromosomes that are derived from the same ancestral species. They result from the duplication of the haploid chromosome set and are referred to as autotriploid, autotetraploid, autopentaploid, autohexaploid, and so on, depending on the number of multiples of the haploid chromosomes they contain. Also called autopolyploidic. −autopolyploidy, n. 2. pertaining to such an individual, organism, strain, or cell. Compare allopolyploid. See also allodiploid.
