tetraploid

American  

[te-truh-ploid] / ˈtɛ trəˌplɔɪd /

adjective

Biology.

1. having a chromosome number that is four times the basic or haploid number.

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noun

1. a tetraploid cell or organism.

tetraploid British  

/ ˈtɛtrəˌplɔɪd /

adjective

1. having four times the haploid number of chromosomes in the nucleus

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noun

1. a tetraploid organism, nucleus, or cell

Other Word Forms

• tetraploidy
  noun

Etymology

Origin of tetraploid

First recorded in 1925–30; tetra- + -ploid

Example Sentences

See Examples For:

tetraploid

In earlier studies of such tetraploid sand rock-cress populations, the researchers identified genes associated with the plant's fertility for which novel variants had evolved in the tetraploids.

From Science Daily ● Apr. 16, 2024

What's more, in established tetraploid populations of sand rock-cress, the genes in question are often slightly different to the versions found in diploid individuals.

From Science Daily ● Apr. 16, 2024

After the whole genome duplication, the mutated plant and its tetraploid descendants had two copies of its genome in the nucleus of its cells.

From Slate ● Jun. 11, 2014

As a result, it is impossible to split the assembled genome of into haploid sets: the apparent ploidy level of is scale-dependent, with a tetraploid structure at gene scale versus chromosome-scale haploidy.

From Nature ● Aug. 21, 2013

So far as we know, all of the species have a constant number within the genus except the hickories where we have tetraploid species and diploid species.

From Northern Nut Growers Association Report of the Proceedings at the 43rd Annual Meeting Rockport, Indiana, August 25, 26 and 27, 1952 by Northern Nut Growers Association