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Evolutionary, Biogeographic, and Population Genetic Patterns of Walleye and other Sander Relationships across Continents, Corridors, and Spawning Sites
Table of Contents
Abstract
Acknowledgements
Table of Contents
List of Tables
List of Figures
Preface
1 Introduction
2 Phylogenetic and biogeographic relationships of the Sander pikeperches (Perciformes: Percidae): Patterns across North America and Eurasia
2.1 Abstract
2.2 Introduction
2.2.1 Morphological differentiation
2.2.2 Species distributions
2.2.3 Comparative life histories
2.2.4 Objectives and questions
2.3 Materials and methods
2.3.1 Sampling and DNA extraction
2.3.2 Gene amplification and DNA sequencing
2.3.3 Data analyses
2.3.4 Divergence time estimates
2.4 Results……
2.4.1 Phylogenetic relationships
2.4.2 Biogeographic relationships
2.4.3 Phylogenetic signal of mitochondrial and nuclear gene regions
2.4.4 Genetic diversity of Sander spp.
2.5 Discussion
2.5.1 Evolution and divergence of Sander.
2.5.2 Phylogenetic and biogeographic patterns on each continent.
2.5.3 Phylogenetic signal of gene regions.
2.5.4 Genetic diversity patterns.
2.5.5 Conclusions.
2.6 Acknowledgements
3 A population genetic window into the past and future of the walleye Sander vitreus: Relation to historic walleye and the extinct blue pike variant
3.1 Abstract
3.2 Introduction
3.2.1 Walleye distribution, fishery, life history, and genetic patterns
3.2.2 The blue pike and its relation to walleye
3.2.3 Objectives and questions
3.3 Methods
3.3.1 Sample collection and DNA extraction
3.3.2 Mitochondrial sequence data collection
3.3.3 Nuclear microsatellite data collection
3.3.4 Mitochondrial DNA data analyses
3.3.5 Nuclear microsatellite DNA data analyses
3.3.6 Population genetic data analyses using both data sets
3.3.7 Morphological comparisons
3.4 Results..…
3.4.1 Nuclear microsatellite loci equilibrium, linkage, and null alleles
3.4.2 Control region sequence data genetic diversity and phylogenetic patterns
3.4.3 Nuclear microsatellite loci genetic diversity patterns
3.4.4 Spatial genetic structure across modern walleye spawning groups .
3.4.5 Historic vs. modern population genetic structure
3.4.6 Morphological variation among historic samples
3.5 Discussion
3.5.1 Genetic divergence among contemporary walleye populations and their relationships to glacial refugia (Question 1)
3.5.2 Contemporary walleye genetic diversity patterns (Question 1)
3.5.3 Historic vs. contemporary genetic patterns of walleye and blue pike (Question 2)
3.5.4 Taxonomic status of the historic blue pike variant (Question 3)
3.5.5 Effects of climate change on walleye populations
3.6 Acknowledgements
4 Genetic connectivity and diversity of walleye (Sander vitreus) spawning groups in the Huron-Erie corridor
4.1 Abstract
4.2 Introduction
4.2.1 Walleye distribution and genetic patterns
4.2.2 Degradation and augmentation of fish habitat along the Huron-Erie corridor
4.2.3 Use of the Huron-Erie corridor by walleye
4.3 Materials and methods
4.3.1 Sample collection and DNA extraction
4.3.2 Nuclear microsatellite data collection
4.3.3 MtDNA control region sequence data
4.3.4 Genetic data analyses
4.4 Results……
4.4.1 Genetic diversity of walleye spawning groups along the HEC
4.4.2 Genetic divergence and connectivity among walleye spawning groups along the HEC
4.4.3 Genetic composition pre- and post-habitat augmentation
4.5 Discussion
4.5.1 Genetic trends in relation to our hypotheses.
4.5.2 Walleye genetic diversity patterns.
4.5.3 Genetic divergence and connectivity of walleye spawning groups along the HEC
4.5.4 Lack of genetic isolation by geographic distance along the HEC
4.5.5 Effects of habitat augmentation on genetic composition.
4.5.6 Summary.
4.6 Acknowledgements
5 Discussion
5.1 General conclusions
5.1.1 Evolution of walleye Sander vitreus: Influences of ancient climate and geological processes.
5.1.2 Population genetic patterns of walleye across the range: Influence of Pleistocene glaciations, drainage connections, and biology.
5.1.3 Historic and contemporary genetic patterns: Influences of habitat degradation, exploitation, and climate change.
5.2 Future Research
5.2.1 Adaptation and genetic structure of walleye and other Sander
5.2.2 Temporal population genetic patterns
5.2.3 Genetic composition of a given spawning run
References Bài viết liên quan
