tetraploid


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Related to tetraploid: polyploidy

tetraploid

 [tet´rah-ploid]
1. characterized by tetraploidy.
2. an individual or cell having four 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, or hexaploid.
[poly- + G. ploidēs, in form]

tetraploid

(tĕt′rə-ploid′)
adj.
Having four times the haploid number of chromosomes in the cell nucleus: a tetraploid species.
n.
A tetraploid individual.

tet′ra·ploi′dy n.

tetraploid

Referring to a polyploid organism with four (4X) sets of chromosomes derived from two different parental species, resulting in an allopolyploid organism.

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]

tetraploid

  1. having four times the HAPLOID (1) number of chromosomes in the nucleus.
  2. an individual with four sets of chromosomes per cell. see TRIPLOID.
References in periodicals archive ?
Although the vast majority are characterized by androgenetic diploidy, a small subset can have androgenetic tetraploidy (genotyping does not specifically distinguish diploid examples from tetraploid examples because peak heights do not indicate actual DNA content).
Induction of tetraploid ruzigrass (Brachiaria ruziziensis) plants by colchicines treatment of in vitro multiple-shoot clumps and seedlings.
If the first 42 individuals sampled from a given population were found to be of a single cytotype (diploid or tetraploid), that population was assumed to be comprised solely of either diploid or tetraploid plants.
Genome composition in polyploids, that is, diploid (2n), triploid (3n), and tetraploid (4n), can be illustrated by using GISH mechanism.
discussed below, a cross between a tetraploid and a 2n gamete-producing
The result of analysis of variance detected significant differences for pollen grain viability among the plants derived from the tetraploid B.
Interestingly, both the agents were highly effective in eradicating tetraploid cells without causing any harm to the normal healthy cells.
where "r" is the coefficient of correlation, X and Y denote tetraploid PMCs and unreduced pollen grains, respectively, and N is number of observations.