期刊
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY B-BIOCHEMISTRY & MOLECULAR BIOLOGY
卷 161, 期 4, 页码 398-403出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.cbpb.2012.01.005
关键词
Bats; UV vision; Fos-like immunostaining; Evolution
资金
- Key Construction Program of the National 985 Project
- 211 Project
- National Natural Science Foundation of China [31101641]
We characterized Fos-like expression patterns in the primary visual cortex (V1) by binocular flicking stimulation with UV light to investigate cone-based UV vision in four bat species representing four lineages: Hipposideros armiger and Scotophilus kuhlii, insectivores using constant frequency (CF) or frequency modulation (FM) echolocation, respectively, and Rousettus leschenaultii and Cynopterus sphinx, cave-roosting and tree-roosting fruit bats, respectively. The optic centre processing the visual image, V1, appears more distinctly immunostaining in S. kuhlii and C sphinx after 1 h of UV light stimuli while in H. armiger and R. leschenaultii, staining was no more distinct than in corresponding controls. Our immunohistochemical evidence supports differences in the distribution of cone-based UV vision in the order Chiroptera and supports our earlier postulate that due to possible sensory tradeoffs and roosting ecology, defects in the short wavelength opsin genes have resulted in loss of UV vision in CF but not in FM bats. In addition, fruit bats roosting in caves have lost UV vision but not those roosting in trees. Our results thus confirm that bats are a further mammalian taxon that has retained cone-based UV sensitivity in some species. (C) 2012 Elsevier Inc. All rights reserved.
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