polyploidy

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Related to Allopolyploids: amphidiploid, autopolyploid

polyploidy

 [pol´e-ploi″de]
the state of having more than two sets of homologous chromosomes.

pol·y·ploi·dy

(pol'ē-ploy'dē),
The state of a cell nucleus containing three or more haploid sets. Cells containing three, four, five, or six multiples are referred to, respectively, as triploid, tetraploid, pentaploid, or hexaploid.
[poly- + G. ploidēs, in form]

polyploidy

/poly·ploi·dy/ (-ploi″de) possession of more than two sets of homologous chromosomes.

polyploidy

[pol′iploi′dē]
the state or condition of having more than two complete sets of chromosomes.

pol·y·ploi·dy

(pol'ē-ploy'dē)
The state of a cell nucleus containing three or more haploid sets. Cells containing three, four, five, or six multiples are referred to, respectively, as triploid, tetraploid, pentaploid, and hexaploid.
[poly- + G. ploidēs, in form]

polyploidy

the state of having more than two sets of homologous chromosomes; that is a multiple of the normal diploid number. Results from replication within a nucleus without nuclear division.
References in periodicals archive ?
component genome to Mexican allopolyploids based on traditional analysis
Grant-Downton and Dickinson (2006) indicated that research of the epigenetics of allopolyploid hybrids between Arabidopsis thaliana and A.
While our study is not the first to distinguish the timing of allopolyploidization relative to dispersal, it contributes to a growing body of evidence documenting the post dispersal formation of allopolyploids in diverse lineages, including well studied examples such as Tragapogon (e.
adiantum-nigrum is of allopolyploid origin, arising from the hybridization of two strictly European diploids, A.
The use of patterns in the study of the evolution of allopolyploids.
sections]) Allopolyploids (A and D genomes, D and E, A and E, or any other unknown combination).
This data is consistent with that from a survey of allopolyploid Triticeae species, indicating a strong preference for the parent containing the St genome to serve as the cytoplasmic DNA donor (M.
Applications include determining if DNA content increases in proportion to ploidy levels and if the DNA content of allopolyploids equals the sum of the DNA content of genomes of donor species.
Disomic inheritance in allopolyploids has been documented in tetraploid Tragopogon mirus Owenbey and T.
an allopolyploid derivative of the two hexaploid parental taxa (reviewed in Ainouche et al.