ISSN 1671-3710
CN 11-4766/R
主办:中国科学院心理研究所
出版:科学出版社

心理科学进展 ›› 2017, Vol. 25 ›› Issue (suppl.): 19-19.

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 An unconventional distribution pattern of retinal ganglion cells in the giant panda (Ailuropoda melanoleuca)

 W. Wang1; C. Wang2; Y. Zhou1; R. Wei2; Y. Nan1; L. Deng2; J. Gao1; C. Zhang3; D. Li2; M. Pu (濮鸣亮)1   

  1. 1 Dept Anatomy, Peking University, Beijing, China;
    2 China conservation and research center for the giant panda, Chendu, China;
    3 Dept Ophthalmology, The third hospital of Peking University
  • 出版日期:2017-08-26 发布日期:2017-08-03
  • 基金资助:
     

 

    

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  • Online:2017-08-26 Published:2017-08-03
  • Supported by:
     

摘要: PURPOSE:: Characterize the vertical distribution pattern of retinal ganglion cells in the giant panda.?
Methods: Four eyeballs were immediately collected from deceased adult pandas. Routine immunohistochemical staining techniques were applied to label retinal ganglion cells (RGCs). RNA-binding protein with multiple splicing (RBPMS) was used as an RGC marker to selectively label RGCs (custom-made by ProSci Inc, CA) and SMI-32 was used as an Alpha RGC marker. Immunostained RGCs were scanned under confocal microscopy and analyzed with commercial software (Adobe Photoshop and Microsoft Excel).
RESULTS: As expected, the isodensity map of RGCs in the cat exhibited a typical horizontally positioned visual streak, in contrast, that of the panda showed a vertically oriented isodensity RGCs band. This band crossed the center of AC-like peak density region and extended vertically from the superior to the inferior retina (5.22 ± 0.46 mm, n=3). The averaged width of the band was 2.18 ± 0.32 mm (n=3). SMI-32 positive RGCs were also analyzed, accordingly.
CONCLUSION: The present study suggests that the giant panda adopted a retinal structure that is essential for better visual performance and survival. These morphological characteristics of RGCs could be important for understanding visual adaptation and evolution of this living fossil.

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