Introgression data

The file was produced using the command 'save()' from the R software. This resulted in the file “introgression.RData”, which includes two dataframes: (1) intro.rates.paper and (2) tree.data. The first dataframe comprises the empirical introgression rates recorded by Bialozyt et al. (2012). The columns are the individual tree number followed by the percentage of introgression for year 2006 and 2007 respectively. The second dataframe (tree.data) comprises the name, coordinates, sex and taxa of all trees used in the simulation. In the column 'SEX' females are coded '0' and males are coded '1'. In the column 'SPECIES' Populus nigra are coded '0' and the hybrids (Populus × canadenis) are coded '1'

Examples of electrofluorograms showing the comparison between tissue from the mother tree and from seed coats for markers Parpan 4 and Parpan 5.

<p>x-axis: fragment length (number of bases), y-axis: signal intensity. In all cases the diploid heterozygous genotypes exhibit more than just two peaks. This is due to stuttering which is common. The true allele is the one with the highest signal intensity.</p

Distribution fitting to the dispersal distance distributions obtained with observational (A) and genetic methods (B).

<p>Fitted distributions do not differ between genetically and observationally obtained dispersal distance distributions.</p

Number of seeds assigned to source trees and mean dispersal distances per source tree.

<p>Number of seeds assigned to source trees and mean dispersal distances per source tree.</p

Frequency distribution of dispersal distances as determined by observational and genetic methods.

<p>Observational methods used the following criterion for inclusion of seeds: between the feeding on fruits of a particular <i>Parkia</i> individual and the defecation of <i>Parkia</i> seeds, no other <i>Parkia</i> individual must have been visited. Genetic methods used DNA fingerprinting to assign seeds to a source trees.</p

Shape and scale parameters of distributions fitted to observationally and genetically determined seed dispersal distances.

<p>Shape and scale parameters of distributions fitted to observationally and genetically determined seed dispersal distances.</p