Spatial scales of genetic structure and gene flow inCalochortus albus(Liliaceae)
| Autor: | Jillian M. Henss, Thomas J. Givnish, Terra J. Theim, Jackson R. Moeller |
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| Rok vydání: | 2013 |
| Předmět: |
0106 biological sciences
Biology 010603 evolutionary biology 01 natural sciences Gene flow 03 medical and health sciences Adaptive radiation Calochortus species richness Endemism Ecology Evolution Behavior and Systematics Original Research 030304 developmental biology Nature and Landscape Conservation 0303 health sciences Ecology 15. Life on land biology.organism_classification Taxon Genetic structure Amplified fragment length polymorphism parallel adaptive radiations Species richness spatial genetic structure |
| Zdroj: | Ecology and Evolution |
| ISSN: | 2045-7758 |
| DOI: | 10.1002/ece3.566 |
| Popis: | Calochortus (Liliaceae) displays high species richness, restriction of many individual taxa to narrow ranges, geographic coherence of individual clades, and parallel adaptive radiations in different regions. Here we test the first part of a hypothesis that all of these patterns may reflect gene flow at small geographic scales. We use amplified fragment length polymorphism variation to quantify the geographic scales of spatial genetic structure and apparent gene flow in Calochortus albus, a widespread member of the genus, at Henry Coe State Park in the Coast Ranges south of San Francisco Bay. Analyses of 254 mapped individuals spaced 0.001–14.4 km apart show a highly significant decline in genetic identity with ln distance, implying a root-mean-square distance of gene flow σ of 5–43 m. STRUCTURE analysis implies the existence of 2–4 clusters over the study area, with frequent reversals among clusters over short distances ( |
| Databáze: | OpenAIRE |
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