Genetic Variation of the Grotto Salamander, Typhlotriton Spelaeus in Missouri

The Ozark Plateau is home to several species of plethodontid salamanders. A previous study has shown that members of a population of Typhlotriton spelaeus from Webster Co., Missouri show a high degree of genetic similarity with members of the genus Eurycea, particularly Eurycea tynerensis. In this study, Typhlotriton spelaeus collected from one location in Webster Co., Missouri was used as the outgroup. Following genetic analysis, T. spelaeus occupied an intermediate position on the phenogram that was produced based on the genetic analysis. My research goal was to determine if the Webster County population used as the outgroup was representative of the entire species throughout its range in Missouri. Samples were collected from 9 localities in southern Missouri. Genetic analysis showed that all populations were monomorphic, there was no genetic variation within cave populations or among cave populations. Based on this research, combined with the results of the previous study provides support to sink the genus Typhlotriton and subsume it with Eurycea.

Name thesis:degree_name

Master of Science in Biology

Level thesis:degree_level

Masters

Discipline thesis:degree_discipline

Biology

Year

1999

Author dc:creator

• Miller, Timothy James

Contributors dc:contributor

• Lynn Robbins

• Biology

Statement dc:rights

• © Timothy James Miller

Repository record dc:identifier

https://bearworks.missouristate.edu/theses/168

OAI identifier oai:identifier

oai:bearworks.missouristate.edu:theses-1169