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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.)

evelopment and function explain the modular evolution of phalanges in gecko lizard

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Rothier, Priscila S. [1, 2] ; Simon, Monique N. [3] ; Marroig, Gabriel [3] ; Herrel, Anthony [2] ; Kohlsdorf, Tiana [1]
Total Authors: 5
[1] Univ Sao Paulo, Fac Filosofia Ciencias & Letras Ribeirao Preto, Dept Biol, 3900 Ave Bandeirantes, BR-14040901 Ribeirao Preto, SP - Brazil
[2] Museum Natl Hist Nat, Dept Adaptat Vivant, 55 Rue Buffon, F-75005 Paris - France
[3] Univ Sao Paulo, Inst Biociencias, Dept Genet & Evolutionary Biol, 277 Rua Matao, BR-05508090 Sao Paulo, SP - Brazil
Total Affiliations: 3
Document type: Journal article
Web of Science Citations: 0

Selective regimes favouring the evolution of functional specialization probably affect covariation among phenotypic traits. Phalanges of most tetrapods develop from a conserved module that constrains their relative proportions. In geckos, however, biomechanical specializations associated with adhesive toepads involve morphological variation in the autopodium and might reorganize such modular structures. We tested two hypotheses to explain the modular architecture of hand bones in geckos, one based on developmental interactions and another incorporating functional associations related to locomotion, and compared the empirical support for each hypothetical module between padded and padless lineages. We found strong evidence for developmental modules in most species, which probably reflects embryological constraints during phalangeal formation. Although padded geckos exhibit a functional specialization involving the hyperextension of the distal phalanges that is absent in padless species, the padless species are the ones that show a distal functional module with high integration. Some ancestrally padless geckos apparently deviate from developmental predictions and present a relatively weak developmental module of phalanges and a strongly integrated distal module, which may reflect selective regimes involving incipient frictional adhesion in digit morphology. Modularity of digit elements seems dynamic along the evolutionary history of geckos, being associated with the presence/absence of adhesive toepads. (AU)

FAPESP's process: 12/18269-3 - Evolution and morphological diversity of Gekkota (Squamata) autopodium: an ecological approach
Grantee:Priscila de Souza Rothier Duarte
Support type: Scholarships in Brazil - Scientific Initiation
FAPESP's process: 16/03953-7 - Modular evolution of the autopodium in Gekkota (Squamata): integrating morphology, ecology and function
Grantee:Priscila de Souza Rothier Duarte
Support type: Scholarships abroad - Research Internship - Master's degree
FAPESP's process: 15/19556-4 - Modularity, Functional Performance and Natural Selection: integrating quantitative genetics and ecophysiology to understand the morphological evolution of tropidurinae lizards
Grantee:Monique Nouailhetas Simon
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 20/14780-1 - Evo-Devo in dynamic environments: implications of climatic changes in the biodiversity
Grantee:Tiana Kohlsdorf
Support type: BIOTA-FAPESP Program - Thematic Grants
FAPESP's process: 15/07650-6 - Ecology, evolution and development (Eco-Evo-Devo) in the Brazilian herpetofauna
Grantee:Tiana Kohlsdorf
Support type: Research Projects - Thematic Grants
FAPESP's process: 14/26287-7 - Associations of developmental modules and ecological diversity during the morphological evolution of phalanges in Gekkota (Squamata)
Grantee:Priscila de Souza Rothier Duarte
Support type: Scholarships in Brazil - Master