Intense bone fluorescence reveals hidden patterns in pumpkin toadlets

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Goutte, Sandra ^{[1, 2]} ; Mason, Matthew J. ^[3] ; Antoniazzi, Marta M. ^[4] ; Jared, Carlos ^[4] ; Merle, Didier ^[5] ; Cazes, Lilian ^[5] ; Toledo, Luis Felipe ^[1] ; el-Hafci, Hanane ^{[6, 7, 8]} ; Pallu, Stephane ^{[6, 7, 8]} ; Portier, Hugues ^{[6, 7, 8]} ; Schramm, Stefan ^[2] ; Gueriau, Pierre ^{[9, 10, 11]} ; Thoury, Mathieu ^{[9, 10]}

Afiliação do(s) autor(es):Mostrar menos -

^[1] Univ Estadual Campinas, Lab Hist Nat Anfibios Brasileiros LaHNAB, Dept Biol Anim, Inst Biol, BR-13083862 Campinas, SP - Brazil

^[2] NewYork Univ Abu Dhabi, Abu Dhabi - U Arab Emirates

^[3] Univ Cambridge, Dept Physiol Dev & Neurosci, Downing St, Cambridge CB2 3EG - England

^[4] Inst Butantan, Lab Cell Biol, BR-05503900 Sao Paulo - Brazil

^[5] Sorbonne Univ, Museum Natl Hist Nat, CR2P, CNRS, MNHN, UPMC, CP38, 8 Rue Buffon, F-75005 Paris - France

^[6] Univ Paris Diderot, Sorbonne Paris Cite, CNRS, B2OA UMR 7052, F-75010 Paris - France

^[7] Univ Paris Est, Ecole Natl Vet Alft, B2OA UMR 7052, F-94700 Maisons Alfort - France

^[8] Univ Orleans, COST, F-45100 Orleans - France

^[9] Minist Culture, IPANEMA, CNRS, F-91192 Gif Sur Yvette - France

^[10] Univ Paris Saclay, UVSQ, USR 3461, F-91192 Gif Sur Yvette - France

^[11] Univ Lausanne, Geopolis, Inst Earth Sci, CH-1015 Lausanne - Switzerland

• Tipo de documento: Artigo Científico
• Fonte: SCIENTIFIC REPORTS; v. 9, MAR 29 2019.
• Citações Web of Science: 1

Resumo

The phenomenon of fluorescence can be used by animals to change effective colouration or patterning, potentially to serve functions including intra- and interspecific signalling. Initially believed to be restricted to marine animals, fluorescent colours are now being described in an increasing number of terrestrial species. Here, we describe unique, highly fluorescent patterns in two species of pumpkin toadlets (Brachycephalus ephippium and B. pitanga). We establish that the origin of the fluorescence lies in the dermal bone of the head and back, visible through a particularly thin skin. By comparing them to those of the closely related species Ischnocnema parva, we demonstrate that pumpkin toadlets' bones are exceptionally fluorescent. We characterize the luminescence properties of the toadlets' bones and discuss the potential function of fluorescent patterns in natural lighting conditions. (AU)

• Processo FAPESP: 16/25358-3 - O fungo quitrídio no Brasil: da sua origem às suas consequências
• Beneficiário: Luis Felipe de Toledo Ramos Pereira
• Modalidade de apoio: Auxílio à Pesquisa - Temático
• Processo FAPESP: 14/23388-7 - Comunicação e sistemas sensoriais em anuros da Mata Atlântica
• Beneficiário: Luis Felipe de Toledo Ramos Pereira
• Modalidade de apoio: Auxílio à Pesquisa - Regular