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Two species contact zone of Pseudacris maculata and Pseudacris triseriata

Title: Two species contact zone of Pseudacris maculata and Pseudacris triseriata.

Inaccessible until Dec 15, 2019 due to copyright restrictions.

Name(s): Wang, Anni, author
Type of Resource: text
Genre: Text
Bachelor Thesis
Date Issued: 2017-12-08
Physical Form: computer
online resource
Extent: 1 online resource
Language(s): English
Abstract/Description: Identifying hybrid zones is important in developing our understanding of the underlying mechanisms of interspecific gene flow and the evolutionary processes that drive diversification and speciation. Hybrid zones provide a natural library to study effects of gene flow on selection without the need to perform experimental manipulations. In this study, I examine the contact zone between two chorus frog species, Pseudacris maculata and P. triseriata through genomic analysis in order to determine the extent of hybridization between the two species. Our data show that the hybrid zone is narrow, with individuals of hybrid ancestry only occurring in the center of our transect across the hybrid zone. We also show that hybridization may be a relatively rare occurrence, with only three individuals from the central populations having a high probability of being F1 or F2 hybrids. Other populations, including those in shallow sympatry do not show evidence of gene flow. Possible factors restricting gene flow in these populations could be geographical barriers, such as the Mississippi River, or reproductive barriers, such as divergence of mating calls. Future work may include more samples from the central population to further understand the amount of hybridization between these two species or a more detailed look at the factors that may be restricting gene flow.
Identifier: FSU_libsubv1_scholarship_submission_1512749504_22b38fc4 (IID)
Keywords: Speciation, hybridization, hybrid zone, evolution, Pseudacris
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Owner Institution: FSU

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Wang, A. (2017). Two species contact zone of Pseudacris maculata and Pseudacris triseriata. Retrieved from