allopolyploid


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al·lo·pol·y·ploid

(al'ō-pol'i-ployd),
An alloploid having three or more haploid sets of chromosomes.
[allo- + polyploid]

allopolyploid

(ăl′ə-pŏl′ē-ploid′)
adj.
Having two or more complete sets of chromosomes derived from different species.
n.
An allopolyploid organism.

al′lo·pol′y·ploi′dy n.

allopolyploid

adjective Referring to allopolyploidy.

noun
(1) A polyploid organism with multiple chromosome sets from different species.
(2) A hybrid organism created from two closely related species, which contains one or more extra sets of chromosomes.

al·lo·pol·y·ploid

(al'ō-pol'i-ployd)
An alloploid having three or more haploid sets of chromosomes.
[allo- + polyploid]
Allopolyploidclick for a larger image
Fig. 24 Allopolyploid . The creation of a fertile allotetraploid.

allopolyploid

a type of POLYPLOID in which the number of chromosomes is doubled in a hybrid between two species. The resulting allotetraploid or amphidiploid is fertile since HOMOLOGOUS CHROMOSOMES of both types can now pair at MEIOSIS to produce viable GAMETES

Such a process has been important in the production of new species, particularly in plants. For example, the successful marshland grass Spartina anglica is a fertile allotetraploid developed from an infertile hybrid (S. townsendii) produced originally by a cross between S. alterniflora and S. maritima. Compare AUTOPOLYPLOID.

References in periodicals archive ?
speltoides in the publicly available databases but showed high homology to the RT gene of diploid and allopolyploid wheats, H.
As a consequence, if putative SNPs show sufficient depth coverage in the allopolyploid but not in the diploid, or reciprocally, the position will not be processed.
The genus Mangifera comprises 69 species (BOMPARD, 2009) and based on some chromosome counts and meiotic analyses these are considered ancient allopolyploids. Chromosomal studies in Mangifera species initiated with Maheshwari (1934) who reported an uncertain number as 2n = 52-58 chromosomes for M.
Grant-Downton and Dickinson (2006) indicated that research of the epigenetics of allopolyploid hybrids between Arabidopsis thaliana and A.
Manduca sexta recognition and resistance among allopolyploid Nicotiana host plants.
Stebbins (1940) related this to the inclusion of the combined physiological traits of the putative parental taxa within the subsequent allopolyploid. A great example of this is the relatively recent speciation of the Chloridoid grass Spartina anglica C.E.
Aegilops and Triticum belong to a complex of wild and domesticated species whose allopolyploid members evolved via hybrid speciation (Kimber and Sears, 1987).
Enzyme banding patterns are consistent with allopolyploid gene expression, and chromosome counts revea l that all populations possess tetraploid chromosome numbers (2n = 24).
Stable Epigenetic Effects Impact Adaptation in Allopolyploid Orchids (Dactylorhiza: Orchidaceae).
Just et al., "Impact of transposable elements on the organization and function of allopolyploid genomes," New Phytologist, vol.
In addition, many allopolyploid species combine alleles from