Diversity and evolution of sexually dimorphic mental and lateral glands in Cophomantini treefrogs (Anura: Hylidae: Hylinae)

Autor(es)

Brunetti, Andres E. ^{[1, 2]} ; Hermida, Gladys N. ^[3] ; Celeste Luna, Maria ^[1] ; Barsotti, Adriana M. G. ^[4] ; Jared, Carlos ^[5] ; Antoniazzi, Marta Maria ^[5] ; Rivera-Correa, Mauricio ^{[1, 6]} ; Berneck, Bianca V. M. ^[7] ; Faivovich, Julian ^{[1, 8]}

Afiliação do(s) autor(es)

^[1] Consejo Nacl Invest Cient & Tecn, Div Herpetol, Museo Argentino Ciencias Nat Bernardino Rivadavia, RA-1033 Buenos Aires, DF - Argentina

^[2] Univ Buenos Aires, Fac Ciencias Exactas & Nat, Dept Quim Organ, UMyMFOR CONICET, RA-1428 Buenos Aires, DF - Argentina

^[3] Univ Buenos Aires, Fac Ciencias Exactas & Nat, Dept Biodiversidad & Biol Expt, Lab Biol Anfibios Histol Anim, Buenos Aires, DF - Argentina

^[4] Univ Sao Paulo, Inst Biociencias, Sao Paulo - Brazil

^[5] Inst Butantan, Lab Biol Celular, BR-05503900 Sao Paulo - Brazil

^[6] Univ Antioquia, Inst Biol, Grp Herpetol Antioquia, Medellin 53108 - Colombia

^[7] Univ Estadual Paulista, Inst Biociencias, Dept Zool, BR-13506900 Rio Claro, SP - Brazil

^[8] Univ Buenos Aires, Fac Ciencias Exactas & Nat, Dept Biodiversidad & Biol Expt, Buenos Aires, DF - Argentina

• Tipo de documento: Artigo Científico
• Fonte: Biological Journal of the Linnean Society; v. 114, n. 1, p. 12-34, JAN 2015.
• Citações Web of Science: 18

Resumo

We describe the structure and histochemistry of mental and lateral glands in a representative array of 28 species of five genera of the Neotropical hylid frog tribe Cophomantini. Structural diversity was coded in 15 characters that were optimized on the most recent phylogenetic hypothesis. Mental and lateral glands occur in 17 species and 10 species, respectively, whereas nine species have both. Each glandular concentration may have two types of sexually dimorphic skin glands (SDSGs), specialized mucous and specialized serous glands, which occur independently or may co-occur. Distinctive characteristics related to these glands are shape, aspect of the secretion, disposition, and distribution. The occurrences of mental and lateral glands, and the characters derived from macroscopic and microscopic examinations, have an intricate taxonomic distribution, with differing levels of homoplasy. The function of SDSGs in Cophomantini is currently unknown. However, based on structural and histochemical similarities to SDSGs from other species of amphibians where experimental evidence exists, we infer they might be involved in the secretion of chemical signals during courtship behaviour. The distribution pattern of these glands, along with the existence of different signals (i.e. acoustic, visual, tactile), suggests the presence of multimodal signalling for some species of the tribe.(c) 2014 The Linnean Society of London, Biological Journal of the Linnean Society, 2014, 114, 12-34. (AU)

• Processo FAPESP: 13/50741-7 - Diversidade e conservação dos anfíbios brasileiros
• Beneficiário: Célio Fernando Baptista Haddad
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOTA - Temático
• Processo FAPESP: 13/18807-8 - Tópicos em filogeografia de Aplastodiscus (Amphibia; Anura; Hylidae)
• Beneficiário: Bianca von Muller Berneck
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado