publication . Other literature type . Article . 2007

Developmental processes underlying the evolution of a derived foot morphology in salamanders

M. Jaekel; D. B. Wake;
Open Access English
  • Published: 10 Dec 2007
  • Publisher: National Academy of Sciences
Abstract
Interdigital webbing has evolved repeatedly in tropical salamanders (bolitoglossines). This derived foot morphology is only one of many homoplastic traits in this diverse amphibian clade. Indeed, few if any morphological traits sort lineages within this clade. We investigate the processes underlying the homoplastic evolution of morphological characters in these salamanders by analyzing selective and developmental processes that generate interdigital webbing. We show that a pedomorphic developmental change generates the new foot morphology and that pedomorphosis affects a number of morphological traits, thus creating a developmental correlation among them. This c...
Subjects
free text keywords: Biological Sciences, Multidisciplinary, Clade, Selective advantage, Amphibian, biology.animal, biology, Morphology (linguistics), Evolutionary biology, Biological evolution, Interdigital webbing, Developmental change, Ecology
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publication . Other literature type . Article . 2007

Developmental processes underlying the evolution of a derived foot morphology in salamanders

M. Jaekel; D. B. Wake;