Oviducts of paedomorphic and metamorphic Ambystoma talpoideum were examined to determine if previously observed differences in egg mass characteristics between the two morphs originated from differences in oviductal histomorphology/histochemistry. We found no evidence to support this hypothesis. At least seven oviductal regions were easily identified in the oviducts of both paedomorphic and metamorphic individuals; these were as follows (from cranial to caudal): 1) pars recta (termed Region A), 2) pars convoluta (termed Regions B through F), and 3) the uterine region (termed Region G). While slight structure and staining differences were evident in Region D of the pars convoluta when paedomorphic A. talpoideum from South Carolina were compared with metamorphic A. talpoideum from Arkansas, there were no differences observed between paedomorphic and metamorphic individuals of A. talpoideum from Arkansas. Thus, any observed oviductal variation was most likely the result of geographic variation and not from differences involving metamorphosis between paedomorphic and metamorphic A. talpoideum. The number of oviductal regions of A. talpoideum was comparable with previous studies on plethodontids and salamandrids, and this study represents the first treatise of oviductal anatomy of an ambystomatid using a histochemical approach beyond general staining with hematoxylin and eosin.
Skip Nav Destination
Article navigation
Research Article|
February 13 2019
Comparative Histomorphology of Oviducts from Metamorphic and Paedomorphic Ambystoma talpoideum (Caudata: Ambystomatidae)
Dustin S. Siegel;
Dustin S. Siegel
1Department of Biology, Southeast Missouri State University, Cape Girardeau, Missouri 63701; Email: (DSS) dsiegel@semo.edu; and (CLL) cllong2s@semo.edu. Send reprint requests to DSS.
Search for other works by this author on:
Cody L. Long;
Cody L. Long
1Department of Biology, Southeast Missouri State University, Cape Girardeau, Missouri 63701; Email: (DSS) dsiegel@semo.edu; and (CLL) cllong2s@semo.edu. Send reprint requests to DSS.
Search for other works by this author on:
Madison Herrboldt;
Madison Herrboldt
2Department of Biological Science, University of Tulsa, Tulsa, Oklahoma 74104; Email: madisonherrboldt@gmail.com.
Search for other works by this author on:
Stanley E. Trauth
Stanley E. Trauth
3Department of Biological Sciences, Arkansas State University (Emeritus), State University, Arkansas 72467; Email: strauth@astate.edu.
Search for other works by this author on:
Copeia (2019) 107 (1): 100–110.
Citation
Dustin S. Siegel, Cody L. Long, Madison Herrboldt, Stanley E. Trauth; Comparative Histomorphology of Oviducts from Metamorphic and Paedomorphic Ambystoma talpoideum (Caudata: Ambystomatidae). Copeia 1 March 2019; 107 (1): 100–110. doi: https://doi.org/10.1643/CG-18-146
Download citation file:
Sign in
Don't already have an account? Register
Client Account
You could not be signed in. Please check your email address / username and password and try again.
Sign in via your Institution
Sign in via your Institution
1
Views
0
Citations
Citing articles via
Hybridization between the Woodland Salamanders Plethodon cinereus and P. electromorphus Is Not Widespread
Shawn R. Kuchta, Maggie M. Hantak, Brian P. Waldron, Cari-Ann M. Hickerson, Richard M. Lehtinen, Carl D. Anthony
David B. Wake (1936–2021)
Elizabeth L. Jockusch
Bayard Holmes Brattstrom
Marina M. Gerson