Latent Genetic Effects of Past Selection on Blood Feeding: Why History Matters
| dc.contributor.advisor | Bradshaw, Bill | |
| dc.contributor.advisor | Holzapfel, Chris | |
| dc.contributor.advisor | Mossberg, Barbara | |
| dc.contributor.author | Kizziar, Piper | |
| dc.date.accessioned | 2022-07-12T20:27:50Z | |
| dc.date.available | 2022-07-12T20:27:50Z | |
| dc.date.issued | 2022 | |
| dc.description.abstract | Conventional wisdom is that selection decreases genetic variation in populations, variation that is essential for population persistence in an ever-changing world. Basically, I find the opposite. Response to selection on biting in the pitcher-plant mosquito, Wyeomyia smithii, increases from 20-80%, but reverts back to the original 20% after seven generations of relaxed (not reversed) selection. At the same time, biting in the control line remains at the original 20% through 30 generations without blood feeding. Imposition of selection on biting in both lines elicits a rapid response in the previously selected line, but, importantly, not in the control line. Hence genetic variation for biting has increased, not decreased as a consequence of long-term directional selection, contrary to expectations. In short, history matters. | en_US |
| dc.identifier.orcid | 0000-0002-4780-1329 | |
| dc.identifier.uri | https://hdl.handle.net/1794/27353 | |
| dc.language.iso | en_US | |
| dc.publisher | University of Oregon | |
| dc.rights | CC BY-NC-ND 4.0 | |
| dc.subject | Wyeomyia smithii | en_US |
| dc.subject | selection | en_US |
| dc.subject | mosquito | en_US |
| dc.subject | genetic variation | en_US |
| dc.subject | latent immunity | en_US |
| dc.title | Latent Genetic Effects of Past Selection on Blood Feeding: Why History Matters | |
| dc.type | Thesis/Dissertation |