Evidence for hybridization and introgression within a species-rich oak (spp.) community-1

<p><b>Copyright information:</b></p><p>Taken from "Evidence for hybridization and introgression within a species-rich oak (spp.) community"</p><p>http://www.biomedcentral.com/1471-2148/7/218</p><p>BMC Evolutionary Biology 2007;7():218-218.</p><p>Published online 10 Nov 2007</p><p>PMCID:PMC2244923.</p><p></p>iduals are indicated by arrows and filled forms. Shape and colour of symbols correspond to the species they mostly resemble

Map of the study site and sampling scheme.

<p>(a) Location of the study site in Germany. (b) Sampling of the adult trees (cultivated trees along the road are shown as red circles and native trees in the landscape are marked as yellow circles). (c) Sampling of the offspring (mother trees of the seeds were illustrated as blue stars and the seedlings collected along 3 transects were marked as white circles). The maps were created using ArcMap™ 10.4.1, Copyright © ESRI.</p

Circular histograms for pollen dispersal period in 20° angle classes.

<p>Blue bars represent (a) mean pollen dispersal directions and (b) mean wind directions; Black arrows show mean directions.</p

Gene flow of common ash (<i>Fraxinus excelsior</i> L.) in a fragmented landscape - Fig 3

<p><b>Frequency distributions of pollen (a) and seed (b) dispersal distances.</b> Lower left shows dispersal events in 100 m distance classes; Upper right shows close-up on short distance dispersal events up to 100 m.</p

F_ST pairwise genetic differentiations (below diagonal) and their significance (above diagonal) for the adults and offspring.

<p>F_ST pairwise genetic differentiations (below diagonal) and their significance (above diagonal) for the adults and offspring.</p

Cumulative probability distributions for the maximum likely dispersal kernel parameters.

<p>Cumulative probability distributions for the maximum likely dispersal kernel parameters.</p

Linear correlations between dispersal distances (DD) and wind speed (WS) in the same angle classes.

<p>Linear correlations between dispersal distances (DD) and wind speed (WS) in the same angle classes.</p

Genetic diversity parameters for the adults and offspring.

<p>Genetic diversity parameters for the adults and offspring.</p

Circular histograms of seed dispersal period in 20° angle classes.

<p>Blue bars depict (a) mean seed dispersal directions weighted by dispersal distances and (b) mean wind directions weighted by wind speed; Black arrows show mean directions.</p

Patterns of genetic diversity of Fagus sylvatica L. in Rodopi Mountains of N.E. Greece

<p>The taxonomic classification of European beech has been lately subject of long scientific discussions. Genetic variation at AFLPs, chloroplast microsatellites and variation in leaf morphology have been analysed in four populations of F. sylvatica in the greek Rodopi Mountains. The analysis of morphological traits reveals differences between the western and the eastern part of the Rodopi Mountains. Moreover, high levels of haplotype diversity were observed within populations, while in central and western Europe no variation at cpDNA markers was detected. Clinal variation patterns have occurred at both morphological and molecular markers, with the variation increasing from the west to the east. Differentiation among populations was found, as expected, stronger at maternaly inherited cpDNA. The results obtained in this study, can be explained either by considering the greek Rodopi an introgression zone between subspecies sylvatica and subspecies orientalis or by the existance of a main glacial refugial area. These scenarios are not mutually exclusive.</p> <p> </p> <p>Poster presented during the Systematics Conference 2008, Göttingen, Germany.</p