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 ?
American allopolyploids, confirming the prior hypothesis of classical
schenckii as allopolyploids, suggesting the involvement of A, B, and P
of the allopolyploids is the occurrence of PCR recombination and
An allopolyploid origin for Collomia biflora opens the door for additional hypotheses of dispersal relative to diversification.
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.
Allopolyploid origin and population genetics of the rare orchid Spiranthes diluvialis.
It is equally easy to see the strong selective advantage of avoiding multivalent formation at meiosis in an auto- or allopolyploid.