hexaploid

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hexaploid

(ˈhɛksəˌplɔɪd) biology
n
(Biology) an organism made up of cells containing six sets of chromosomes
adj
(Biology) having six times the normal number of chromosomes

hex•a•ploid

(ˈhɛk səˌplɔɪd)

adj.
1. having a chromosome number that is six times the haploid number.
n.
2. a hexaploid cell or organism.
[1915–20]
hex′a•ploi`dy, n.
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References in periodicals archive ?
This indicates that, at least in the current germplasm collection, hexaploids occur at a low frequency, if at all.
Days to Phy- Days sio- Dis- to logi- ease An- cal 1000 score CIMMYT Pedigree the- Matu- Plant grain ([sec- designation [dagger]) sis rity height weight tions]) cm g % Synthetic hexaploids CIGM93.
Days to Pedigree Physio- CIMMYT ([double Days to logical Plant designation dagger]) Anthesis Maturity height cm Synthetic hexaploids CASS97B00040S Gan/Ae.
Synthetic hexaploids have been reported as having resistance to diseases such as karnal bunt, caused by Tilletia indica Mitra (Multani et al.
Hexaploids can be found throughout the Great Plains (Huff et al.
insularis Ladizinsky has been shown to have even greater pairing affinity with the hexaploid and has been suggested as the most likely tetraploid ancestor of the hexaploids (Ladizinsky, 1998).
Synthetic hexaploids are routinely crossed and backcrossed with common wheat (2n = 6x = 42, AABBDD) to achieve acceptable agronomic types.
The tetraploids produced as much dry matter as the hexaploids and did not show a significant difference by Tritipyrum.
tetraploids, and hexaploids, with traditionally recognized species
This idea supports the hypothesis of individualised origin; that is, an independent origin of the hexaploids 'continuous sclerenchyma' from a diploid ancestor in the different mountain ranges.
Cytology and reproductive behavior of pearl millet-napiergrass hexaploids x Pennisetum squamulatum trispecific hybrids.
Somatic chromosome counts determined for these 11 accessions indicated two triploid (A12256 and A12260), three pentaploids (A12348, A12352, and A12365), and six hexaploids (A12317, A12318, A12319, A12320, A12356, and A12358) (Table 1 and Fig.