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Comparative Genomic Characterization of the Multimammate Mouse Mastomys coucha

Authors
  • Hardin, Aaron1, 2
  • Nevonen, Kimberly A3
  • Eckalbar, Walter L1, 2
  • Carbone, Lucia3, 4, 5, 6
  • Ahituv, Nadav1, 2
  • 1 Department of Bioengineering and Therapeutic Sciences, University of California, San Francisco, San Francisco, CA
  • 2 Institute for Human Genetics, University of California, San Francisco, San Francisco, CA
  • 3 Department of Medicine, Knight Cardiovascular Institute, Oregon Health and Science University, Portland, OR
  • 4 Department of Molecular and Medical Genetics, Oregon Health and Science University, Portland, OR
  • 5 Department of Medical Informatics and Clinical Epidemiology, Oregon Health and Science University, Portland, OR
  • 6 Division of Genetics, Oregon National Primate Research Center, Beaverton, OR
Type
Published Article
Journal
Molecular Biology and Evolution
Publisher
Oxford University Press
Publication Date
Aug 20, 2019
Volume
36
Issue
12
Pages
2805–2812
Identifiers
DOI: 10.1093/molbev/msz188
PMID: 31424545
PMCID: PMC6878952
Source
PubMed Central
Keywords
License
Unknown

Abstract

Mastomys are the most widespread African rodent and carriers of various diseases such as the plague or Lassa virus. In addition, mastomys have rapidly gained a large number of mammary glands. Here, we generated a genome, variome, and transcriptomes for Mastomys coucha . As mastomys diverged at similar times from mouse and rat, we demonstrate their utility as a comparative genomic tool for these commonly used animal models. Furthermore, we identified over 500 mastomys accelerated regions, often residing near important mammary developmental genes or within their exons leading to protein sequence changes. Functional characterization of a noncoding mastomys accelerated region, located in the HoxD locus, showed enhancer activity in mouse developing mammary glands. Combined, our results provide genomic resources for mastomys and highlight their potential both as a comparative genomic tool and for the identification of mammary gland number determining factors.

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