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

Derived Forms

• tetraploidy
  noun

Etymology

Origin of tetraploid

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

Example Sentences

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

Coloured branches, tetraploid species: red, quinoa; blue, C. berlandieri; yellow, C. hircinum.

From Nature • Feb. 7, 2017

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

Simultaneously, a tetraploid organism and a new species have been created.

From Scientific American • May 19, 2013

Yesterday Mr. Bolten asked the question whether or not some walnuts that have large nuts could possibly be tetraploid or polyploid.

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