Definition of pentaploid in English:

Share this entry


Pronunciation: /ˈpen(t)əˌploid/


1(Of a cell or nucleus) containing five homologous sets of chromosomes.
Example sentences
  • Figure 2E, F, for example, shows a pentaploid cell with 14 chromosomes of the A genome and 21 of the B genome.
  • For example, the triploid primary endosperm nucleus of Triticum aestivum has in prophase a DNA content of 6C, while the pentaploid primary endosperm nucleus of Gagea lutea has in prophase a DNA content of 10C.
  • DAPI-stained chromosomes of a PMC at metaphase I of the pentaploid S - 41 from the cross H. megalanthus x H. monacanthus.
1.1(Of an organism or species) composed of pentaploid cells.
Example sentences
  • Outbreeding leads to permanent pentaploid organisms, which are matroclinal in characters due to the differential contribution of maternal and paternal genomes.


A pentaploid organism, variety, or species.
Example sentences
  • Intergeneric-interploidy hybridization between Hylocereus species and S. megalanthus yielded triploids, pentaploids, hexaploids, and aneuploid hybrids.
  • The diploid, the triploid and the pentaploid hybrids tested had the expected number of two, three and five rDNA hybridization sites, respectively.
  • The reciprocal cross in which tetraploid PAX was used as the seed parent produced only pentaploid offspring, indicating that PAX produced unreduced egg cells that were fertilized (P. J. VAN DIJK, unpublished data).

For editors and proofreaders

Syllabification: pen·ta·ploid

Share this entry

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.