endoreduplication


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Related to endoreduplication: aneuploidy

endoreduplication

 [en″do-re-du″plĭ-ka´shun]
replication of chromosomes without subsequent cell division.

en·do·re·du·pli·ca·tion

(en'dō-rē-dū'pli-kā'shŭn),
A form of polyploidy or polysomy by redoubling of chromosomes, giving rise to four-stranded chromosomes at prophase and metaphase.

en·do·re·du·pli·ca·tion

(en'dō-rē-dū-pli-kā'shŭn)
A form of polyploidy or polysomy by redoubling of chromosomes, giving rise to four-stranded chromosomes at prophase and metaphase.
References in periodicals archive ?
Triploidy caused by endoreduplication in a human zygote obtained after in-vitro fertilization.
Hirst's study found that one or more of a handful of genes is likely responsible for the endoreduplication. And while it may be possible to isolate those genes and find ways to increase the size of other apples, Hirst said it's unlikely.
However, BrdU incorporation in the period from 4H (4-h postfertilization) to 8H could also represent endoreduplication, because the number of notochord cells is constant during this period.
Cell line exhibited a high level of aneuploidy with modal chromosomal number between 43-45, with presence of poliploidy (55-102 <4n>, XXYY) and endoreduplication (end 45, X, -Y).
Inhibition of maize endosperm cell division and endoreduplication by exogenously applied abscisic acid.
lessonae chromosomes prior to meiosis, and is followed by premeiotic or occasionally by a prediplotene meiotic endoreduplication of the R.
Saggio, "E1B55K-deleted Adenovirus (ONYX-015) overrides G1/S and G 2/M checkpoints and causes mitotic catastrophe and endoreduplication in p53-proficient normal cells," Cell Cycle, vol.
Many studies have attempted to unravel the complex physiological mechanisms of salt stress tolerance in sorghum, and have implicated increasing Ca2+ concentrations (Bernstein et al., 1993), osmotic adjustment (Richardson and McCree, 1985; Anjaneyulu et al., 2014), and chromosome endoreduplication (Ceccarelli et al., 2006) as contributing processes.
Effects of p21(Cip1/Waf1) at both the G1/S and the G2/M cell cycle transitions: pRb is a critical determinant in blocking DNA replication and in preventing endoreduplication. Mol.
Endoreduplication, the process of a cell duplicating its DNA without subsequent cell division, is a phenomenon that occurs in the endosperm of cereals, which is the nutritious part of the seed.