pentaploid

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pentaploid

(pĕn′tə-ploid′)
adj.
Having five haploid sets of chromosomes.
n.
A pentaploid individual.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

pentaploid

(pĕn′tă-ployd) [″ + ploos, a fold, + eidos, form, shape]
Having five sets of chromosomes.
Medical Dictionary, © 2009 Farlex and Partners

pentaploid

a POLYPLOID individual having five sets of chromosomes.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
References in periodicals archive ?
commersonii pentaploid hybrids: fertility studies and tuber evaluation.
Rare pentaploid plants have been reported from interspecific artificial hybridization (Johnston, 1975; Burton et al., 1993).
Cluster E contains one tetraploid and three pentaploid accessions (Fig.
Multivalents comprised of 6 and 7 chromosomes per cell increased significantly (P < 0.05) in the 39 chromosome aneuploids over the pentaploid hybrid, suggesting that the chromosomes are remaining as unpaired or being included in higher order chromosome associations.
Second-order models for tetraploids and pentaploids. Heredity 68: 205-210.
In tetra- and pentaploid hybrids, the problem of assuming equal "affinities" increases even more (Kimber & Alonso, 1981; Chapman & Kimber, 1992b), but still only two different values of relative "affinity" are allowed.
Nine pentaploid combinations ([A.sup.r][A.sup.n][B.sup.c][C.sup.n][C.sup.c]) between synthetic hexaploid plants ([A.sup.r][A.sup.r][B.sup.c][B.sup.c][C.sup.c][C.sup.c]) and cultivars of natural B.
australe pentaploids as male parent in backcrosses with G.
Because PI 409704 is a pentaploid (2n = 5x = 45), common buffelgrass was used as an internal standard for all PI 409704 seedlings.
These data are the first evidence of pentaploids among buffalograss, in data from clones (Table 1) as well as progeny in seed populations (Table 3), most notably the cultivar 315.
As with pentaploids, hexaploids are also the result of 2n + n matings and are considered [B.sub.III], derived hybrids.