allopolyploid


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allopolyploid

[‚a·lə′päl·ə‚plȯid]
(genetics)
An organism or strain arising from a combination of chromosome sets from two diploid organisms belonging to different species. Also known as alloploid.
References in periodicals archive ?
Matsubayashi (1991) proposed that allopolyploid species
However, as the spore characters can also be variable, especially in cases where there are events of hybridization and polyploidy, the recognition of primary diploid species, interspecific hybrids, and allopolyploids can provide further information on the genus diversity, as well as on the processes of evolution that have been contributing to its diversification (Taylor et al.
Genomic in situ hybridization (GISH) reveals both autopolyploid and allopolyploid origins of different North and Central American hexaploid potato (Solanum section Petota) species.
viridimontana has been involved in the reticulate evolutionary history of Isoetes as a parent in one or more of the many allopolyploid species in North America.
The conclusion by Puntieri and Brion (2005) that the Bariloche population represents a naturalized introduction is thus logical; nevertheless, DNA sequence data indicate this population more likely represents a remnant of a much earlier dispersal event that established in South America prior to the allopolyploid formation of C.
Accessing the parentage of hybrids or allopolyploids is essential for understanding relationships within taxonomically complex groups.
flavovirens in the Middle Atlas, which differs both in its karyogram and its morphology (smaller leaves and flowers), is a good illustration of this cytotype variation of allopolyploid origin.
Thus far, three species of plants new to science have been named in his honor: a Caribbean moss, Macrocoma gastonyi Norris & Vitt (1973); a Mexican polystichoid fern Phanerophlebia gastonyi Yatskievch (1992), and the uncommon allopolyploid Pellaea gastonyi Windham (1993).
An allopolyploid origin of the crop was suggested by multiple sequences of ncpGS found within individual plants of cultivated oca, some of which showed fixed heterozygosity and joined separate parts of the ncpGS gene tree (Emshwiller & Doyle, 1998a; Emshwiller, 1999a).
Manton's extensive survey demonstrated that most ferns had extraordinarily high chromosome numbers and that often what appeared to be polymorphic species were actually reticulate complexes of diploid species and their allopolyploid derivatives.
It is equally easy to see the strong selective advantage of avoiding multivalent formation at meiosis in an auto- or allopolyploid.
Polymorphism and concerted evolution in a tandemly repeated gene family: 5S ribosomal DNA in diploid and allopolyploid cottons, J.