Ontogeny and tissue differentiation of the pelvic girdle and hind limbs of anurans
| Autor: | Virginia Abdala, Monica Carina Soliz, María Laura Ponssa, Adriana Silvina Manzano |
|---|---|
| Rok vydání: | 2012 |
| Předmět: |
Amphibian
HISTOGENESIS Pelvic girdle biology Appendicular skeleton Cartilage Ontogeny Zoología Ornitología Entomología Etología Cell Biology Anatomy APPENDICULAR SKELETON Tendon Ciencias Biológicas AMPHIBIAN DEVELOPMENT Limb bud medicine.anatomical_structure SKELETOGENESIS biology.animal medicine Animal Science and Zoology medicine.symptom CIENCIAS NATURALES Y EXACTAS Ecology Evolution Behavior and Systematics Muscle contraction |
| Zdroj: | Acta Zoologica. |
| ISSN: | 0001-7272 |
| DOI: | 10.1111/j.1463-6395.2012.00571.x |
| Popis: | We present the ontogeny of the integrated musculoskeletal complex that comprises the pelvic girdle and hind limbs of anurans. Our histological data show that the pelvic girdle originates from a single mesenchymatic condensation. The tissue differentiation sequence is cartilage, muscle and tendon. The intrusion of the ischiadic nerve into the limb bud is produced very early in ontogeny. The pre-cartilage appears in the pre-motile stage. Therefore, the nerve produces a movement analogous to the ?embryonic motility? that would induce the emergence of the pre-cartilage. The acetabulum is the first of all cavitation processes to form, the second one being the knee. The acetabulum appears before the muscles are mature, although it has been stressed that the muscle contraction maintains joint progenitors committed to their fate. Our data indicate an explosive differentiation of all 11 muscular masses together. We provide three new characters that support the monophyly of Hyloides, Acosmanura and Neobatrachia. Fil: Manzano, Adriana Silvina. Universidad Autónoma de Entre Ríos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción; Argentina Fil: Abdala, Virginia Sara Luz. Universidad Nacional de Tucumán; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Tucumán; Argentina Fil: Ponssa, María Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Tucumán; Argentina. Universidad Nacional de Tucumán; Argentina Fil: Soliz, Monica Carina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Tucumán; Argentina. Universidad Nacional de Tucumán; Argentina |
| Databáze: | OpenAIRE |
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