Fluctuating selection in a Monkeyflower hybrid zone

While hybridization was viewed as a hindrance to adaptation and speciation by early evolutionary biologists, recent studies have demonstrated the importance of hybridization in facilitating evolutionary processes. However, it is still not well-known what role spatial and temporal variation in natural selection play in the maintenance of naturally occurring hybrid zones. To identify whether hybridization is adaptive between two closely related monkeyflower species, Mimulus guttatus and Mimulus laciniatus, we performed repeated reciprocal transplants between natural hybrid and pure species’ populations. We planted parental genotypes along with multiple experimental hybrid generations in a dry (2021) and extremely wet (2023) year in the Sierra Nevada, CA. By taking fine scale environmental measurements, we found that the environment of the hybrid zone is more similar to M. laciniatus’s seasonally dry rocky outcrop habitat than M. guttatus’s moist meadows. In our transplants hybridization d..., , , # Fluctuating selection in a Monkeyflower hybrid zone

Diana Tataru

Last edited: Dec 4, 2024

[https://doi.org/10.5061/dryad.k98sf7mg4](https://doi.org/10.5061/dryad.k98sf7mg4)

This is a dataset corresponding to a replicated reciprocal transplant experiment conducted in 2021 and 2023 in Yosemite National Park, CA with Mimulus laciniatus, M. guttatus, and experimental hybrids (first generation, second generation, and back-crossed). Methods and analyses are published in Evolution Letters:

Diana Tataru, Max De Leon, Spencer Dutton, Fidel Machado Perez, Alexander Rendahl, Kathleen G Ferris, Fluctuating selection in a monkeyflower hybrid zone, Evolution Letters, 2024;, qrae050, [https://doi.org/10.1093/evlett/qrae050](https://doi.org/10.1093/evlett/qrae050)

## Description of the data and file structure

FieldSites.csv is a simple csv with latitude and longitude coordinates for the three experimental field sites where transplants occured. 

### 2021 Data:

1\. HH2021.csv, CF2021.csv, TK20...