One gene or many? Different genetic mechanisms drive convergent evolution in monkey flowers
نویسندگان
چکیده
...........................................................................................................................................2 Introduction ......................................................................................................................................3 The genetic basis of convergent evolution Approaches to the study of parallel evolution Serpentine soil as a model for parallel evolution Monkey flowers: an ideal model of serpentine adaptation Investigating parallel adaptation to serpentine soils in monkey flowers Methods ............................................................................................................................................9 Populations used in this study Soils used in this study Reciprocal transplant experiment Hybrid formation Soil tolerance assays Genomic extraction Bulk sequencing Bulk segregant analysis and QTL mapping Results ............................................................................................................................................16 Reciprocal transplant experiment M. nudatus X M. guttatus hybrid tolerance assay M. glaucescens X M. guttatus hybrid tolerance assay M. pardalis X M. guttatus hybrid tolerance assay QTL mapping in M. nudatus X M. guttatus hybrids QTL mapping in M. pardalis X M. guttatus hybrids Discussion ......................................................................................................................................28 Serpentine soils are an equivalent, general selective environment for Mimulus No single large-effect gene is responsible for serpentine tolerance in Mimulus nudatus Germination and phenotype scoring procedures affect tolerance assays in Mimulus pardalis Hybrid incompatibility is a likely cause of a reverse QTL in Mimulus pardalis Robust dominance of serpentine tolerance characterizes Mimulus glaucescens Conclusions Acknowledgements ........................................................................................................................35 Literature Cited ..............................................................................................................................36
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