A detailed investigation of the visual system and visual ecology of the Barrier Reef anemonefish, Amphiprion akindynos

A detailed investigation of the visual system and visual ecology of the Barrier Reef anemonefish, Amphiprion akindynos
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堡礁小丑鱼 Amphiprion akindynos 视觉系统和视觉生态的详细研究

DOI:
10.1038/s41598-019-52297-0
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发表时间:
2019
期刊:
影响因子:
4.6
通讯作者:
Marshall NJ
Marshall NJ
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Stieb SM;de Busserolles F;Carleton KL;Cortesi F;Chung W-S;Dalton B;Hammond LA;Marshall NJ

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视觉在大多数硬骨鱼类的生活中起着重要的作用,并且很好地适应了每个物种的生态和行为。利用多学科的方法,我们仔细研究了大堡礁海葵鱼,Amphiprion akindynos的视觉系统和生态学的几个方面,包括它的橙子与白色图案,视网膜解剖学和分子生物学,它与海葵的共生关系和顺序雌雄同体。Amphiprion akindynos具有光谱上不同的视觉色素和视蛋白:一种视杆视蛋白,RH1(498 nm),和五种视锥视蛋白,SWS1(370 nm)、SWS2B(408 nm)、RH2B(498 nm)、RH2A(520 nm)和LWS(554 nm)。圆锥体排列成规则的马赛克,每个单圆锥体被四个双圆锥体包围。双锥中一个主要表达RH2B(53%),另一个主要表达RH2A(46%),与优势光相匹配。单锥表达SWS1(89%),这可能有助于检测浮游动物,同种和宿主海葵。此外,分离的一小部分单锥体共表达SWS 1和SWS 2B(11%)。这种新的视觉专业化福尔斯的最高敏锐度的区域内,并建议增加的色彩对比度ofAmphiprion akindynoterus模式,这可能会提高检测同种。
Vision plays a major role in the life of most teleosts, and is assumingly well adapted to each species ecology and behaviour. Using a multidisciplinary approach, we scrutinised several aspects of the visual system and ecology of the Great Barrier Reef anemonefish,Amphiprion akindynos, including its orange with white patterning, retinal anatomy and molecular biology, its symbiosis with anemones and sequential hermaphroditism.Amphiprion akindynospossesses spectrally distinct visual pigments and opsins: one rod opsin, RH1 (498 nm), and five cone opsins, SWS1 (370 nm), SWS2B (408 nm), RH2B (498 nm), RH2A (520 nm), and LWS (554 nm). Cones were arranged in a regular mosaic with each single cone surrounded by four double cones. Double cones mainly expressedRH2B(53%) in one member andRH2A(46%) in the other, matching the prevailing light. Single cones expressedSWS1(89%), which may serve to detect zooplankton, conspecifics and the host anemone. Moreover, a segregated small fraction of single cones coexpressedSWS1withSWS2B(11%). This novel visual specialisation falls within the region of highest acuity and is suggested to increase the chromatic contrast ofAmphiprion akindynoscolour patterns, which might improve detection of conspecifics.
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