1
|
Lee YY, Cal-Kayitmazbatir S, Francey LJ, Bahiru MS, Hayer KE, Wu G, Zeller MJ, Roberts R, Speers J, Koshalek J, Berres ME, Bittman EL, Hogenesch JB. duper is a null mutation of Cryptochrome 1 in Syrian hamsters. Proc Natl Acad Sci U S A 2022; 119:e2123560119. [PMID: 35471909 PMCID: PMC9170138 DOI: 10.1073/pnas.2123560119] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Accepted: 03/08/2022] [Indexed: 12/20/2022] Open
Abstract
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. Limited genetic resources for the Syrian hamster (Mesocricetus auratus) presented a major obstacle to cloning duper. This caused the duper mutation to remain unknown for over a decade. In this study, we did a de novo genome assembly of Syrian hamsters with long-read sequencing data from two different platforms, Pacific Biosciences and Oxford Nanopore Technologies. Using two distinct ecotypes and a fast homozygosity mapping strategy, we identified duper as an early nonsense allele of Cryptochrome 1 (Cry1) leading to a short, unstable protein. CRY1 is known as a highly conserved component of the repressive limb of the core circadian clock. The genome assembly and other genomic datasets generated in this study will facilitate the use of the Syrian hamster in biomedical research.
Collapse
Affiliation(s)
- Yin Yeng Lee
- Divisions of Human Genetics and Immunobiology, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229
- Department of Pharmacology and Systems Physiology, University of Cincinnati College of Medicine, Cincinnati, OH 45229
| | - Sibel Cal-Kayitmazbatir
- Divisions of Human Genetics and Immunobiology, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229
| | - Lauren J. Francey
- Divisions of Human Genetics and Immunobiology, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229
| | - Michael Seifu Bahiru
- Department of Biology, University of Massachusetts Amherst, Amherst, MA 01003
- Program in Neuroscience & Behavior, University of Massachusetts Amherst, Amherst, MA 01003
| | - Katharina E. Hayer
- Institute for Translational Medicine and Therapeutics, University of Pennsylvania, Philadelphia, PA 19104
| | - Gang Wu
- Divisions of Human Genetics and Immunobiology, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229
| | - Molly J. Zeller
- University of Wisconsin Biotechnology Center, University of Wisconsin–Madison, Madison, WI 53706
| | - Robyn Roberts
- University of Wisconsin Biotechnology Center, University of Wisconsin–Madison, Madison, WI 53706
| | - James Speers
- University of Wisconsin Biotechnology Center, University of Wisconsin–Madison, Madison, WI 53706
| | - Justin Koshalek
- University of Wisconsin Biotechnology Center, University of Wisconsin–Madison, Madison, WI 53706
| | - Mark E. Berres
- University of Wisconsin Biotechnology Center, University of Wisconsin–Madison, Madison, WI 53706
| | - Eric L. Bittman
- Department of Biology, University of Massachusetts Amherst, Amherst, MA 01003
- Program in Neuroscience & Behavior, University of Massachusetts Amherst, Amherst, MA 01003
| | - John B. Hogenesch
- Divisions of Human Genetics and Immunobiology, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229
| |
Collapse
|