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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Diversity and evolution of the parotoid macrogland in true toads (Anura: Bufonidae)

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Ailin O'Donohoe, M. E. [1] ; Celeste Luna, Maria [2] ; Regueira, Eleonora [1, 3] ; Brunetti, Andres E. [4] ; Basso, Nestor G. [5] ; Lynch, John D. [6] ; Pereyra, Martin O. [2] ; Hermida, Gladys N. [1]
Total Authors: 8
[1] Univ Buenos Aires, Fac Ciencias Exactas & Nat, Dept Biodiversidad & Biol Expt, Lab Biol Anfibios, Av Int Guiraldes 2160, Pab 2, 4 Piso, C1428EGA, Buenos Aires, DF - Argentina
[2] Consejo Nacl Invest Cient & Tecn, Museo Argentino Ciencias Nat Bernardino Rivadavia, Div Herpetol, Av Angel Gallardo 470, C1405DJR, Buenos Aires, DF - Argentina
[3] Consejo Nacl Invest Cient & Tecn, C1033AAJ, Buenos Aires, DF - Argentina
[4] Univ Sao Paulo, Dept Phys & Chem, Sch Pharmaceut Sci Ribeirao Preto, Sao Paulo - Brazil
[5] Consejo Nacl Invest Cient & Tecn, Inst Diversidad & Evoluc Austral IDEAus, Puerto Madryn, Chubut - Argentina
[6] Inst Ciencias Nat Colombia, Bogota - Colombia
Total Affiliations: 6
Document type: Journal article
Source: ZOOLOGICAL JOURNAL OF THE LINNEAN SOCIETY; v. 187, n. 2, p. 453-478, OCT 2019.
Web of Science Citations: 0

Skin glands in amphibians are either distributed throughout the skin or aggregated in multiglandular structures such as the parotoids typical of most species of Bufonidae. Although many early divergent and derived bufonids lack a discrete parotoid in the postorbital-supratympanic (PoSt) region, they have a great macroscopic diversity in the skin morphology of this region. To understand the origin and evolution of this diversity, in particular of the parotoids, we describe the histomorphology of the skin of the PoSt and dorsal regions in 17 species of bufonids, with or without external evident parotoid, and compare it with previously published descriptions. The survey results in 27 characters that were optimized on a phylogenetic hypothesis of Bufonidae. Our results reveal that the PoSt region has a noteworthy morphological diversity of types of glands, spatial organization and differences in the secretion products. Some morphological characters represent putative synapomorphies of internal clades of Bufonidae and are related to the progressive differentiation towards defined structures (macroglands, parotoids). These morphological results, along with published information on the toxicity of the skin secretions and defensive behaviours in some representative species, allow us to infer possible relationships between these features. (AU)

FAPESP's process: 14/20915-6 - Chemical ecology in anurans: characterization of volatile compounds and peptide pheromones from the skin secretions of frogs
Grantee:Andrés Eduardo Brunetti
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 17/23725-1 - Genomic analysis of skin symbiotic bacteria in frogs as potential source of volatile compounds
Grantee:Andrés Eduardo Brunetti
Support type: Scholarships abroad - Research Internship - Post-doctor