Details

Autor(en) / Beteiligte

• Montague, Tessa G.
• Rieth, Isabelle J.
• Gjerswold-Selleck, Sabrina
• Garcia-Rosales, Daniella
• Aneja, Sukanya
• Elkis, Dana
• Zhu, Nanyan
• Kentis, Sabrina
• Rubino, Frederick A.
• Nemes, Adriana
• Wang, Katherine
• Hammond, Luke A.
• Emiliano, Roselis
• Ober, Rebecca A.
• Guo, Jia
• Axel, Richard

Titel

A brain atlas for the camouflaging dwarf cuttlefish, Sepia bandensis

Ist Teil von

• Current biology, 2023-07, Vol.33 (13), p.2794-2801.e3

Ort / Verlag

England: Elsevier Inc

Erscheinungsjahr

2023

Quelle

Free E-Journal (出版社公開部分のみ）

Beschreibungen/Notizen

• The coleoid cephalopods (cuttlefish, octopus, and squid) are a group of soft-bodied marine mollusks that exhibit an array of interesting biological phenomena, including dynamic camouflage, complex social behaviors, prehensile regenerating arms, and large brains capable of learning, memory, and problem-solving.1,2,3,4,5,6,7,8,9,10 The dwarf cuttlefish, Sepia bandensis, is a promising model cephalopod species due to its small size, substantial egg production, short generation time, and dynamic social and camouflage behaviors.11 Cuttlefish dynamically camouflage to their surroundings by changing the color, pattern, and texture of their skin. Camouflage is optically driven and is achieved by expanding and contracting hundreds of thousands of pigment-filled saccules (chromatophores) in the skin, which are controlled by motor neurons emanating from the brain. We generated a dwarf cuttlefish brain atlas using magnetic resonance imaging (MRI), deep learning, and histology, and we built an interactive web tool (https://www.cuttlebase.org/) to host the data. Guided by observations in other cephalopods,12,13,14,15,16,17,18,19,20 we identified 32 brain lobes, including two large optic lobes (75% the total volume of the brain), chromatophore lobes whose motor neurons directly innervate the chromatophores of the color-changing skin, and a vertical lobe that has been implicated in learning and memory. The brain largely conforms to the anatomy observed in other Sepia species and provides a valuable tool for exploring the neural basis of behavior in the experimentally facile dwarf cuttlefish. [Display omitted] •A 3D cuttlefish brain atlas, generated from 8 brains using MRI and deep learning•A histological brain atlas, in 3 planes, annotated with 32 brain lobes•A 3D body atlas, annotated with 26 organs•All tools hosted on a custom-built website, https://www.cuttlebase.org/ Cephalopods are masters of dynamic camouflage and complex social behaviors, and they exhibit learning and memory. Montague et al. generate a brain atlas for a promising model cephalopod species, the dwarf cuttlefish, using magnetic resonance imaging, deep learning, and histology. They host the data on a custom-built interactive website, Cuttlebase.