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Having two or more complete sets of chromosomes derived from different species.
An allopolyploid organism.

al′lo·pol′y·ploi′dy n.


(Genetics) (of cells, organisms, etc) having more than two sets of haploid chromosomes inherited from different species
(Genetics) an interspecific hybrid of this type that is therefore fertile
ˌalloˈpolyˌploidy n


(ˌæl əˈpɒl əˌplɔɪd)
1. having more than two haploid sets of chromosomes that are dissimilar and derived from different species.
2. an allopolyploid cell or organism.
al`lo•pol′y•ploi`dy, n.
References in periodicals archive ?
Genetic evidence for allopolyploidy in the neotropical fern Hemionitis pinnatifida (Adiantaceae) and the reconstruction of an ancestral genome.
Among their topics are allopolyploidy and interspecific hybridization for wheat improvement, polyploidy in maize: the impact of homozygosity and hybridity on phenotype, broadening the genetic basis for crop improvement: interspecific hybridization within and between ploidy levels in Helianthus, oat improvement and innovation using wild genetic resources (Poaceas, Avena spp.
Low-copy nuclear data comfirm rampant allopolyploidy in the Cystopteridaceae (Polypodiales).
in the evolution of both auto- and allopolyploidy in Solarium species
The origin of saffron by allopolyploidy seems more probable considering the recent data on its karyotype and molecular biology [20].
Allopolyploidy speciation can result from somatic chromosome doubling into a diploid hybrid, followed by selfing to produce a tetraploid, as in Primula kewensis, an allopolyploid that arose spontaneously in 1909 among cultivated diploid hybrids of P.
Besides, the recent discovery of allopolyploidy in 2 rodent species belonging to Octodontidae (Gallardo et al.