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endoreduplication

   Also found in: Encyclopedia, Wikipedia 0.01 sec.
endoreduplication /en·do·re·du·pli·ca·tion/ (-re-doo″plĭ-ka´shun) replication of chromosomes without subsequent cell division.
en·do·re·du·pli·ca·tion (nd-r-dpl-kshn)
n.
A form of polyploidy or polysomy characterized by redoubling of chromosomes, giving rise to four-stranded chromosomes at prophase and metaphase.

endoreduplication
[en′dōrido̅o̅′plikā′shən]
Etymology: Gr, endon + L, re-, again, duplicare, to duplicate
replication of the chromosomes without subsequent cell division.

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

endoreduplication
replication of chromosomes without subsequent cell division.


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An increasing rate of endoreduplication results in cells with greater DNA content and, subsequently, increased gene expression and greater sink capacity for the developing seed.
Cell expansion and endoreduplication show a large genetic variablilty in pericarp and contribute strongly to tomato fruit growth.
35,36) The process of endoreduplication results in multiple cycles of DNA replication associated with a failure of cell division, thus causing markedly enlarged polyploid nuclei with extensive chromosomal gains (Figure 4, B).
 
 
 
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