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autopolyploid

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autopolyploid [¦ȯd·ō¦päl·i‚plȯid]
(genetics)
A cell or organism having three or more sets of chromosomes all derived from the same species.


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However, this study, which suggests speciation associated with autopolyploid changes in chromosome number, is based on mitotic counts, which are notoriously difficult to interpret in Carex except in species with the lowest numbers.
In autopolyploids, although the diversity of genetic potential increases by the development of new alleles, as has been shown in Tolmiea menziesii (Soltis & Rieseberg, 1986) and in Dactylis glomerata (Lum aret & Barrientos, 1990), an autopolyploid has very little chance of becoming established because multivalents form during meiosis, causing partial sterility.
Olah and DeFilipps (1968) concluded that this species is a polyhaploid derived from the autopolyploid D.
 
 
 
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