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Having more than two sets of chromosomes all derived from the same species.
An organism having more than two sets of chromosomes, all of which were derived from the same species.

au′to·pol′y·ploi′dy n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Genetics) (of cells, organisms, etc) having more than two sets of haploid chromosomes inherited from a single species
(Genetics) an organism or cell of this type
ˌautoˈpolyˌploidy n
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
These characteristics bolster the species' reputation as "the classic example" of autopolyploidy (Baldwin, 1941; Stebbins, 1950; Grant, 1971; Soltis et al., 2007).
Polyploids can originate either from alterations of meiotic or mitotic processes in specimens within a species (autopolyploidy) or by reproductive contact among species (allopolyploidy) [19].
Soltis & Soltis included under the name of hybrid speciation two phenomena: the homoploid hybrid speciation (what we have called hybrid, the result of the crossing between two different species resulting in another organism that maintains the same ploidy level as its parentals) and allopolyploidy (even autopolyploidy when considering that autopolyploidy may typically involve hybridization between populations of the same species) (Soltis & Soltis 2009).