Definition of tetraploid in English:

tetraploid

Line breaks: tetra|ploid
Pronunciation: /ˈtɛtrəplɔɪd
 
/
Biology

adjective

  • 1(Of a cell or nucleus) containing four homologous sets of chromosomes: additional chromosomes were introduced into the tetraploid cells
    More example sentences
    • Our studies on isogenic diploid and tetraploid cells show that tetraploids have increased chromosome instability during exponential growth.
    • Abnormal diploid, triploid and tetraploid nuclei with separated dual color signals were clearly distinguishable from normal nuclei.
    • Compared to their diploid counterparts, which have a normal set of chromosomes, tetraploid cells were more prone to generate tumors in mice, and these tumors showed genomic instability similar to many human cancers.
  • 1.1(Of an organism or species) composed of tetraploid cells: a tetraploid species of hybrid origin
    More example sentences
    • In terms of economics, the polyploid AD genome is by far the most important as > 90% of the world's cotton fibre is produced by G. hirsutum and G. barbadense, two of the tetraploid species.
    • The diploid and hexaploid species are distributed in Asia and Africa, while the tetraploid species inhabit Africa and mainly the Palearctic area including Europe, North Africa, and western Asia.
    • The derivation of our model centers on tetraploid species in which multivalent pairing is only one mechanism for chromosomal pairings during meioses.

noun

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  • An organism, variety, or species composed of or featuring tetraploid cells: a tetraploid which produces flowers of double size
    More example sentences
    • Our studies on isogenic diploid and tetraploid cells show that tetraploids have increased chromosome instability during exponential growth.
    • Then somewhere - no one knows where - the tetraploids crossed with another species of wild grass to produce the bread wheats from which we make leavened bread today.
    • The populations showed continuous morphological variation connecting the species, but karyotypically they consisted of only three types of plants: diploids, triploids, and tetraploids.

Derivatives

tetraploidy

noun
More example sentences
  • However, in our study we found one case each of triploidy and of tetraploidy.
  • Therefore, these authors suggested diploidy for sturgeon with 120 chromosomes and tetraploidy for sturgeon with 250 chromosomes.
  • The result of increased inbreeding and an associated fitness decline in long-term small populations stands in contrast to theoretical predictions about inbreeding in connection with incompatibility and tetraploidy.

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