OMIA:001643-10036 : Duper in Mesocricetus auratus (golden hamster)

Categories: Behaviour / neurological phene

Mendelian trait/disorder: yes

Mode of inheritance: Autosomal recessive

Considered a defect: no

Key variant known: yes

Year key variant first reported: 2022

Species-specific description: Lee et al. (2022): "The duper mutation is a recessive mutation that shortens the period length of the circadian rhythm in Syrian hamsters. These animals show a large phase shift when responding to light pulses. ... we identified duper as an early nonsense allele of Cryptochrome 1 (Cry1) leading to a short, unstable protein ..."

Associated gene:

Symbol Description Species Chr Location OMIA gene details page Other Links
Cry1 cryptochrome circadian clock 1 Mesocricetus auratus NW_024429195.1 (83437100..83484527) Cry1 Homologene, Ensembl , NCBI gene


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WARNING! Inclusion of a variant in this table does not automatically mean that it should be used for DNA testing. Anyone contemplating the use of any of these variants for DNA testing should examine critically the relevant evidence (especially in breeds other than the breed in which the variant was first described). If it is decided to proceed, the location and orientation of the variant sequence should be checked very carefully.

Since October 2021, OMIA includes a semiautomated lift-over pipeline to facilitate updates of genomic positions to a recent reference genome position. These changes to genomic positions are not always reflected in the ‘acknowledgements’ or ‘verbal description’ fields in this table.

OMIA Variant ID Breed(s) Variant Phenotype Gene Allele Type of Variant Source of Genetic Variant Reference Sequence Chr. g. or m. c. or n. p. Verbal Description EVA ID Year Published PubMed ID(s) Acknowledgements
1491 duper Cry1 deletion, small (<=20) Naturally occurring variant c.578del p.(P193fs) published as c.578delC 2022 35471909

Cite this entry

Nicholas, F. W., Tammen, I., & Sydney Informatics Hub. (2022). OMIA:001643-10036: Online Mendelian Inheritance in Animals (OMIA) [dataset].


Note: the references are listed in reverse chronological order (from the most recent year to the earliest year), and alphabetically by first author within a year.

2024 Manoogian, E.N.C., Bahiru, M.S., Wang, E.J., Holder, M., Bittman, E.L. :
Neuroendocrine effects of the duper mutation in Syrian hamsters: a role for Cryptochrome 1. Front Physiol 15:1351682, 2024. Pubmed reference: 38444761. DOI: 10.3389/fphys.2024.1351682.
2023 Bahiru, M.S., Bittman, E.L. :
Adult neurogenesis is altered by circadian phase shifts and the duper mutation in female Syrian hamsters. eNeuro 10:ENEURO.0359-22.2023, 2023. Pubmed reference: 36878716. DOI: 10.1523/ENEURO.0359-22.2023.
2022 Lee, Y.Y., Cal-Kayitmazbatir, S., Francey, L.J., Bahiru, M.S., Hayer, K.E., Wu, G., Zeller, M.J., Roberts, R., Speers, J., Koshalek, J., Berres, M.E., Bittman, E.L., Hogenesch, J.B. :
duper is a null mutation of cryptochrome 1 in Syrian hamsters. Proc Natl Acad Sci U S A 119:e2123560119, 2022. Pubmed reference: 35471909. DOI: 10.1073/pnas.2123560119.
2011 Krug, S., McKinley Brewer, J., Bois, A.S., Bittman, E.L. :
Effects of the duper mutation on circadian responses to light. J Biol Rhythms 26:293-304, 2011. Pubmed reference: 21775288. DOI: 10.1177/0748730411411570.
Monecke, S., Brewer, J.M., Krug, S., Bittman, E.L. :
Duper: a mutation that shortens hamster circadian period. J Biol Rhythms 26:283-92, 2011. Pubmed reference: 21775287. DOI: 10.1177/0748730411411569.

Edit History

  • Created by Frank Nicholas on 24 Oct 2011
  • Changed by Frank Nicholas on 20 Aug 2020
  • Changed by Imke Tammen2 on 14 Sep 2022