Why Does the Giant Panda Eat Bamboo?
Author Information
Author(s): Jin Ke, Xue Chenyi, Wu Xiaoli, Qian Jinyi, Zhu Yong, Yang Zhen, Yonezawa Takahiro, Crabbe M. James C., Cao Ying, Hasegawa Masami, Zhong Yang, Zheng Yufang
Primary Institution: School of Life Sciences, Fudan University, Shanghai, China
Hypothesis
What genetic factors influence the giant panda's dietary switch to bamboo?
Conclusion
The study suggests that defects in the dopamine metabolic pathways may influence the giant panda's food choices.
Supporting Evidence
- The T1R1 gene in the giant panda has become a pseudogene, which may relate to its dietary change.
- The giant panda's digestive system is still more suited for a carnivorous diet.
- Genetic analysis revealed a complex involvement of dopamine metabolism in the panda's food choices.
Takeaway
The giant panda eats bamboo because of special genes that affect how it feels about food, even though it can't taste meat anymore.
Methodology
The study involved a systematic analysis of genes related to the appetite-reward system in the giant panda, comparing its genetic sequences with those of other species.
Limitations
The study does not fully explain the initial evolutionary reasons for the giant panda's dietary switch.
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website