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| Content Provider | Springer Nature Link |
|---|---|
| Author | Sloop, Christina M. Ayres, Debra R. Strong, Donald R. |
| Copyright Year | 2008 |
| Abstract | Plant hybridization can lead to the evolution of invasiveness. We wished to determine whether hybrids between the largely self-sterile Atlantic Spartina alterniflora and California native S. foliosa had evolved self-fertility during their ca 30 year existence in San Francisco Bay, CA. In pollination experiments we found that neither of the parental species was self-fertile, nor were early generation hybrids. A large fraction of later generation hybrids were profusely self-fertile. Inbreeding depression was high in the parental species and early generation hybrids, but was much reduced in later generation hybrids—some even showed outbreeding depression. We found that populations of later generation hybrids and their seedling progeny were almost two-fold more homozygous than early generation hybrids, consistent with the evidence of increased selfing shown by our parentage analyses based upon 17 microsatellite markers. We posit that evolved self-fertility has contributed substantially to the rapid spread of hybrid Spartina in San Francisco Bay. |
| Starting Page | 1131 |
| Ending Page | 1144 |
| Page Count | 14 |
| File Format | |
| ISSN | 13873547 |
| Journal | Biological Invasions |
| Volume Number | 11 |
| Issue Number | 5 |
| e-ISSN | 15731464 |
| Language | English |
| Publisher | Springer Netherlands |
| Publisher Date | 2008-10-22 |
| Publisher Place | Dordrecht |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Allee effect Inbreeding depression Invasive species Hybridization Pollen limitation Outbreeding depression Self-fertilization Spartina alterniflora Spartina foliosa Developmental Biology Ecology Plant Sciences Freshwater & Marine Ecology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Ecology Ecology, Evolution, Behavior and Systematics |
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