It is also significantly more complicated than the human genome because it is allopolyploid
, that is, it arises from the hybridization of different ancestral species (in this case N.
mangostana is reported to be allopolyploid
, and is considered to be derived from the hybridization of G.
Evidence for an allopolyploid
complex in New Zealand Polystichum.
In the last hundred years, several studies were conducted on wheat phylogeny which provides significant insight into the evolutionary background of the definite genomes in allopolyploid
species (Gu et al.
In addition, many allopolyploid
species combine alleles from
juncea (2n = 36, AABB genome), an allopolyploid
commonly called as Indian mustard, contributes more than 80% to the total rapeseed-mustard production in the country and is an important component in the oilseed sector.
A biosystematic study of Castilleja crista-galli (Scrophulariaceae) : An allopolyploid
2005), using RAPD analysis, have proved that the origin of these species is allopolyploid
instead of autopolyploid.
The popular Gossypium hirsutum among the four species is an allopolyploid
(2n=4x=52; AD-genome) species that has originated from a single polyploidization event involving two diploid species; an A-genome maternal parent and a D-genome paternal parent approximately 0.
Though the causes of this persistence in mango mitosis is not clear, it was assumed to be associated with (a) the allopolyploid
nature of mango; (b) disturbance in the biosynthesis of some nucleolar component which stimulated the persistence; (c) disturbance in some pathway related to nucleolar disassembly; (d) failure in the phosphorilation machinery at RNA pol I, as mentioned before; and (e) requirement of some nucleolar proteins to the mango cell cycle progression compelling its persistence.
Parallel domestication, convergent evolution and duplicated gene recruitment in allopolyploid
Recent studies have shown that the allopolyploid
formation in triticale and wheat is accompanied by diverse genetic and epigenetic events (Ma et al.