supergene

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supergene

(so͞o′pər-jēn′)
n.
A group of closely linked genes occupying a large chromosomal segment and frequently functioning as a genetic unit.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

supergene

a cluster of genes along a chromosome that, while closely located, may have unrelated functions. Supergenes may act as a single unit during RECOMBINATION in meiosis.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
References in periodicals archive ?
"This supergene region not only allows insects to mimic each other, as in Heliconius, but also to mimic the soot blackened background of the industrial revolution - it's a gene that really packs an evolutionary punch," Professor Richard ffrench-Constant of the University of Exeter added.
numata's wing pattern is controlled by a "supergene" - a cluster of several genes in one part of a single gene package, or chromosome.
The "supergene" clustering allows genetic combinations for mimicry favoured by natural selection to be maintained.
Whereas cancer-causing supergenes run in only a few families, polymorphisms are part of everyone's genetic heritage.
These mimetic systems are often controlled by coadapted supergene complexes with several closely linked loci.