Comparison of brain transcriptome of the greater horseshoe bats (Rhinolophus ferrumequinum) in active and torpid episodes

PLoS One. 2014 Sep 24;9(9):e107746. doi: 10.1371/journal.pone.0107746. eCollection 2014.

Abstract

Hibernation is an energy-saving strategy which is widely adopted by heterothermic mammals to survive in the harsh environment. The greater horseshoe bat (Rhinolophus ferrumequinum) can hibernate for a long period in the hibernation season. However, the global gene expression changes between hibernation and non-hibernation season in the greater horseshoe bat remain largely unknown. We herein reported a comprehensive survey of differential gene expression in the brain between winter hibernating and summer active greater horseshoe bats using next-generation sequencing technology. A total of 90,314,174 reads were generated and we identified 1,573 differentially expressed genes between active and torpid states. Interestingly, we found that differentially expressed genes are over-represented in some GO categories (such as metabolic suppression, cellular stress responses and oxidative stress), which suggests neuroprotective strategies might play an important role in hibernation control mechanisms. Our results determined to what extent the brain tissue of the greater horseshoe bats differ in gene expression between summer active and winter hibernating states and provided comprehensive insights into the adaptive mechanisms of bat hibernation.

Publication types

  • Comparative Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adaptation, Physiological / genetics
  • Animals
  • Brain / metabolism*
  • Chiroptera / genetics*
  • Gene Expression Profiling / methods
  • Gene Ontology
  • Hibernation / genetics*
  • Seasons
  • Sequence Analysis, RNA / methods
  • Transcriptome*

Grants and funding

This work is supported by the National Natural Science Foundation of China to Dong Dong (44106480), Shanghai Pujiang Talent Program Foundation to Dong Dong (44504410), and Key Construction Program of the National ‘985’ project of East China Normal University to Dong Dong (79633006).The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.