Behavioral evidence for cone-based ultraviolet vision in divergent bat species and implications for its evolution

Behavioral evidence for cone-based ultraviolet vision in divergent bat species and implications for its evolution
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不同蝙蝠物种锥基紫外线视觉的行为证据及其进化的影响

DOI:
10.1590/s1984-46702012000200002
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发表时间:
2012-04
期刊:
Zoologia (curitiba, Impresso)
影响因子:
--
通讯作者:
Sun Yi
Sun Yi
中科院分区:
其他
文献类型:
--
作者:
Xuan Fujun;Hu Kailiang;Zhu Tengteng;Paul, Racey;Wang Xuzhong;Sun Yi

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我们研究了来自四个不同谱系的四种蝙蝠对紫外线的反应:(Hodgson,1835)和Scotophilus kuhlii Leach,1821,它们分别使用恒定频率(CF)或调频(FM)回声定位;以及Rousetus leschenaultii(Desmarest,1820)和Cynopterus sphinx(Vahl,1797),分别是洞穴和树上栖息的旧大陆果蝠。在紫外线照射下,经过包括厌恶性刺激的驯化和训练后,S. kuhlii和C.狮身人面像暴露于这些刺激后,表现出条件反射,如身体蜷缩、翅膀收缩、水平爬行、飞行和/或发声,而H. armiger和R. leschenaultii在大多数线索测试中,仍然接受刺激。我们的行为研究提供了直接的证据,以锥为基础的紫外线视觉的多样性,在翼手目,并进一步支持我们早期的假设,由于可能的感官权衡和栖息生态,在短波长视蛋白基因的缺陷,导致CF蝙蝠的紫外线视觉的损失,但不是在FM蝙蝠。此外,栖息在洞穴中的旧大陆果蝠已经失去了紫外线视觉,但栖息在树上的果蝠却没有。因此,蝙蝠是第三个哺乳动物分类群,保留了祖先的锥为基础的紫外线敏感性,在一些物种。
We investigated the reactions of four bat species from four different lineages to UV light: Hipposideros armiger (Hodgson, 1835) and Scotophilus kuhlii Leach, 1821, which use constant frequency (CF) or frequency modulation (FM) echolocation, respectively; and Rousettus leschenaultii (Desmarest, 1820) and Cynopterus sphinx (Vahl, 1797), cave and tree-roosting Old World fruit bats, respectively. Following acclimation and training involving aversive stimuli when exposed to UV light, individuals of S. kuhlii and C. sphinx exposed to such stimuli displayed conditioned reflexes such as body crouching, wing retracting, horizontal crawling, flying and/or vocalization, whereas individuals of H. armiger and R. leschenaultii, in most cue-testing sessions, remained still on receiving the stimuli. Our behavioral study provides direct evidence for the diversity of cone-based UV vision in the order Chiroptera and further 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 bats, but not in FM bats. In addition, Old World fruit bats roosting in caves have lost UV vision, but those roosting in trees have not. Bats are thus the third mammalian taxon to retain ancestral cone-based UV sensitivity in some species.
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