octaploid


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Related to octaploid: Allopolyploids

octaploid

(ˈɒktəˌplɔɪd) biology
n
(Biology) an organism that consists of eight groups or sets of chromosomes
adj
(Biology) having or containing eight groups or sets of chromosomes
References in periodicals archive ?
The response was more striking when considering specimens (diploid, polyploidy and mosaic) exclusively from Salvador do Sul (n = 11) where scalar values yielded complete hexaploid ([lambda] = 3; 6n = 24) and octaploid ([lambda] = 4 or [[2].sup.5] = 8n = 32) chromosome plates.
x ananassa derived from 4 diploid ancestors has a relatively complex octaploid genome harboring 56 chromosomes (2n = 8x = 56).
Zhu et al., "Altered apoptosis/autophagy and epigenetic modifications cause the impaired postimplantation octaploid embryonic development in mice," Cell Cycle, vol.
Furthermore, we observed an octaploid DNA content in C10 cells only; HCEC and C5 cells showed the expected normal distribution of diploid and tetraploid DNA.
Upland ecotypes are hexaploid or octaploid, shorter, and thinner-stemmed, with more vigorous rhizomes, and are perhaps more drought tolerant [7, 9].
Sugarcane is genetically a complex crop that possesses highly variable chromosome number (octaploid; x = 10; 8x = 80).
There are tetraploid (2n = 4x = 28) and octaploid (2n = 8x = 56) cytotypes of smooth bromegrass (Vogel et al., 1996; Tuna et al., 2001b).
Otherwise, the number of photosynthetic cells per unit leaf area progressively decreased with increasing ploidy from diploid to hexaploid, but thereafter remained constant in octaploid and decaploid plants (Warner and Edwards, 1989; 1993).
A finding of odd ploidy levels in sturgeons may witness to backcrossof interspecific hexaploid sturgeon hibrids to evolutionarily tetraploid and/ or octaploid parental species.
Because Texas bluegrass is an octaploid with an unknown meiotic chromosome pairing behavior, several genetic segregation ratios are possible.