{"id":{"repo_id":"carleton","oai_identifier":"oai:carleton.scholaris.ca:20.500.14718/43361"},"canonical_url":"https://search.dev.ndltd.org/etd/carleton/oai:carleton.scholaris.ca:20.500.14718/43361","repository":{"repo_id":"carleton","name":"Carleton University","base_url":"https://carleton.scholaris.ca/server/oai/request"},"display":{"title":"A Comparison of Limb Development of the Salamanders Plethodon Cinereus and Ambystoma Mexicanum","abstract":"Tetrapod limbs exhibit a wide variety of developmental variation. Amphibians alone display a fair amount this variation. Here, the development of both limb pairs in the species Plethodon cinereus and Ambystoma mexicanum are compared. Using histology and microCT on embryonic and juvenile specimens, there are few observable differences in the relative order of skeletal element appearance, and both species exhibit preaxial polarity. The resolution with which elements’ appearance could be examined was constrained by the use of stages established on other features as time points. Histologically, the epithelium of the limb bud appears to differ between the two species. It is possible that the differences in histology relate to difference in primary habitat, and constraints of those habitats. For future work, foundation is laid here for the expansion of Plethodon as a model organism. Additional observations on the normal development of Plethodon limb bones would enhance the presented work.","abstract_html":"Tetrapod limbs exhibit a wide variety of developmental variation. Amphibians alone display a fair amount this variation. Here, the development of both limb pairs in the species Plethodon cinereus and Ambystoma mexicanum are compared. Using histology and microCT on embryonic and juvenile specimens, there are few observable differences in the relative order of skeletal element appearance, and both species exhibit preaxial polarity. The resolution with which elements’ appearance could be examined was constrained by the use of stages established on other features as time points. Histologically, the epithelium of the limb bud appears to differ between the two species. It is possible that the differences in histology relate to difference in primary habitat, and constraints of those habitats. For future work, foundation is laid here for the expansion of Plethodon as a model organism. Additional observations on the normal development of Plethodon limb bones would enhance the presented work.","abstract_has_math":false,"creators":["Yee, Jeffrey Austin"],"institution":"Carleton University","degree_name":"Master of Science (M.Sc.)","degree_level":"Master's","degree_discipline":"Earth Sciences","degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2024,"date_issued":"2024","date_published":"2024","updated_at":"2026-07-24T01:34:20Z","subjects":[],"languages":["en"],"rights":["Copyright © 2024 the author(s). Theses may be used for non-commercial research, educational, or related academic purposes only. Such uses include personal study, distribution to students, research and scholarship. Theses may only be shared by linking to the Carleton University Institutional Repository and no part may be copied without proper attribution to the author; no part may be used for commercial purposes directly or indirectly via a for-profit platform; no adaptation or derivative works are permitted without consent from the copyright owner."],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier.doi","label":"DOI","values":["10.22215/etd/2024-16296"],"render_values":[{"text":"10.22215/etd/2024-16296","href":"https://doi.org/10.22215/etd/2024-16296","code":true}]}]},"links":{"outbound_url":"https://hdl.handle.net/20.500.14718/43361","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:creator","label":"Author","values":["Yee, Jeffrey Austin"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2025-04-08T20:55:32Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2025-04-08T20:55:32Z"]},{"key":"dc:date.issued","label":"Date","values":["2024"]},{"key":"dc:publisher","label":"Institution","values":["Carleton University"]},{"key":"dc:type","label":"Dc Type","values":["thesis"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Earth Sciences"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Master's"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Master of Science (M.Sc.)"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language.iso","label":"Language (ISO)","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright © 2024 the author(s). 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Amphibians alone display a fair amount this variation. Here, the development of both limb pairs in the species Plethodon cinereus and Ambystoma mexicanum are compared. Using histology and microCT on embryonic and juvenile specimens, there are few observable differences in the relative order of skeletal element appearance, and both species exhibit preaxial polarity. The resolution with which elements’ appearance could be examined was constrained by the use of stages established on other features as time points. Histologically, the epithelium of the limb bud appears to differ between the two species. It is possible that the differences in histology relate to difference in primary habitat, and constraints of those habitats. For future work, foundation is laid here for the expansion of Plethodon as a model organism. Additional observations on the normal development of Plethodon limb bones would enhance the presented work."]},{"key":"dc:title","label":"Title","values":["A Comparison of Limb Development of the Salamanders Plethodon Cinereus and Ambystoma Mexicanum"]}]}],"canonical_facts":{"dc:creator":["Yee, Jeffrey Austin"],"dc:date.accessioned":["2025-04-08T20:55:32Z"],"dc:date.available":["2025-04-08T20:55:32Z"],"dc:date.issued":["2024"],"dc:description.abstract":["Tetrapod limbs exhibit a wide variety of developmental variation. Amphibians alone display a fair amount this variation. Here, the development of both limb pairs in the species Plethodon cinereus and Ambystoma mexicanum are compared. Using histology and microCT on embryonic and juvenile specimens, there are few observable differences in the relative order of skeletal element appearance, and both species exhibit preaxial polarity. The resolution with which elements’ appearance could be examined was constrained by the use of stages established on other features as time points. Histologically, the epithelium of the limb bud appears to differ between the two species. It is possible that the differences in histology relate to difference in primary habitat, and constraints of those habitats. For future work, foundation is laid here for the expansion of Plethodon as a model organism. Additional observations on the normal development of Plethodon limb bones would enhance the presented work."],"dc:identifier.doi":["10.22215/etd/2024-16296"],"dc:identifier.uri":["https://hdl.handle.net/20.500.14718/43361"],"dc:language.iso":["en"],"dc:publisher":["Carleton University"],"dc:rights":["Copyright © 2024 the author(s). Theses may be used for non-commercial research, educational, or related academic purposes only. Such uses include personal study, distribution to students, research and scholarship. 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