| Autor: |
Jeannie M. Mounger, Isolde van Riemsdijk, M. Teresa Boquete, Cornelis A. M. Wagemaker, Samar Fatma, Marta H. Robertson, Sandy A. Voors, Jenna Oberstaller, Fleur Gawehns, Torrance C. Hanley, Ivo Grosse, Koen J. F. Verhoeven, Erik E. Sotka, Catherine A. Gehring, A. Randall Hughes, David B. Lewis, Marc W. Schmid, Christina L. Richards |
| Jazyk: |
angličtina |
| Rok vydání: |
2022 |
| Předmět: |
|
| Zdroj: |
Frontiers in Ecology and Evolution, Vol 10 (2022) |
| Druh dokumentu: |
article |
| ISSN: |
2296-701X |
| DOI: |
10.3389/fevo.2022.868826 |
| Popis: |
Ecological genomics approaches have informed us about the structure of genetic diversity in natural populations that might underlie patterns in trait variation. However, we still know surprisingly little about the mechanisms that permit organisms to adapt to variable environmental conditions. The salt marsh foundation plant Spartina alterniflora exhibits a dramatic range in phenotype that is associated with a pronounced intertidal environmental gradient across a narrow spatial scale. Both genetic and non-genetic molecular mechanisms might underlie this phenotypic variation. To investigate both, we used epigenotyping-by-sequencing (epiGBS) to evaluate the make-up of natural populations across the intertidal environmental gradient. Based on recent findings, we expected that both DNA sequence and DNA methylation diversity would be explained by source population and habitat within populations. However, we predicted that epigenetic variation might be more strongly associated with habitat since similar epigenetic modifications could be rapidly elicited across different genetic backgrounds by similar environmental conditions. Overall, with PERMANOVA we found that population of origin explained a significant amount of the genetic (8.6%) and epigenetic (3.2%) variance. In addition, we found that a small but significant amount of genetic and epigenetic variance ( |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
|
