Fine-scale genetic structure in the orchid Gymnadenia conopsea is not associated with local density of flowering plants
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Premise: Density-dependent pollinator visitation can lead to density-dependent mating patterns and within-population genetic structure. In Gymnadenia conopsea, individuals in low-density patches receive more self-pollen than individuals in high-density patches, suggesting higher relatedness at low density. Ongoing fragmentation is also expected to cause more local matings, potentially leading to biparental inbreeding depression.
Methods: To evaluate whether relatedness decreases with local density, we analysed 1315 SNP loci in 113 individuals within two large populations. We quantified within-population genetic structure in one of the populations, recorded potential habitat barriers, and visualized gene flow using estimated effective migration surfaces (EEMS). We further estimated the magnitude of biparental inbreeding depression that would result from matings restricted to within 5 m.
Results: There was no significant relationship between local density and relatedness in any population..., , , # Data from: Fine-scale genetic structure in the orchid Gymnadenia conopsea is not associated with local density of flowering plants
The excel file includes spatial positions and pairwise kinship coefficients estimated with SPAGeDI for two Ãland populations of Gymnadenia conopsea
## Description of the data and file structure
The first tab in the file is called 'Legend', and contains the same information as given here.
| Tab 'all pairs' includes kinship coefficients for all possible pairwise combinations, including all individulas |
| -------------------------------------------------------------------------------------------------------------------- |
| Tab 'distance pairs' includes kinship coefficients for pairs with information on distance between individuals |
| Tab 'coordinates Alb' includes spatial position of all individuals within a 50 by 30 m plot in the Alböke population |
* Pop=Population [Alb=Alböke, Sto=Störlinge]
* Ind=Individual ID within population [...
创建时间:
2025-07-11



