Gene Duplication
Description
  Processes occurring in various organisms by which new genes arise, i.e. the duplication of a single gene. In contiguous gene duplication, the duplicated sequence coexists within the boundaries set by the start and stop signals for protein synthesis of the original, resulting in a larger transcription product and protein at the expense of the preexisting protein. In discrete gene duplication, the duplicated sequence is outside the start and stop signals, resulting in two independent genes (GENES, DUPLICATE) and gene products. Gene duplication may result in a MULTIGENE FAMILY; supergenes or PSEUDOGENES. (Rieger et al., Glossary of Genetics: Classical and Molecular, 5th ed)
Synonyms
  Duplication, Gene
Duplications, Gene
Gene Duplications
Parents
  Mutagenesis
Mutation
See Also
  Multigene Family
Experts
  Surinder Chopra
Liwang Cui
Claude de Pamphilis
Zhenwu Lin
Hong Ma
Xumu Zhang
Tree Numbers
  G05.600.320
G13.920.590.320
MeSH ID
  D020440

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