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.
References in periodicals archive ?
represent autopolyploids, or presumed autopolyploids (Gavrilenko, 2007).
In addition, isozyme surveys in other tetraploid species indicate that variability is higher in autopolyploids than their diploid progenitors, which supports the idea that tetraploids have persisted long enough to acquire variability or that bottlenecks associated with the origin of tetraploids are not that severe (Soltis and Rieseberg 1986; Wolf et al.
It seems likely that these clones are autopolyploids, as they do not contain alleles from another distinct taxon, nor do they greatly differ from those found in temperate zone populations of C.
chrysoscelis) then the tetraploids had an autopolyploid origin.
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.
Turfgrasses can range from apomictic to dioecious, from self-pollinated to cross-pollinated, and can have different ploidy levels, with some species being autopolyploid or allopolyploid.