<abstract xmlns="http://www.w3.org/1999/xhtml"><p> Studies on plant communities of various annual species suggest that there are particular biotic interactions among individuals from different species which could be the basis for long-term species coexistence. In the course of a large survey on species-genetic diversity relationships in several forest tree communities, it was found that statistically significant differences exist among isozyme genotype frequencies of conspecific tree groups, which differ only by species identity of their neighbours. Based on a specific measure, the association of the neighbouring species with the genotypes of the target species or that of the genotypes with the neighbouring species was quantified. Since only AAT and HEK of the five analysed enzyme systems differed in their genotype frequencies among several tree groups of the same target species, a potential involvement of their enzymatic function in the observed differences was discussed. The results of this study demonstrate a fine-scale genetic differentiation within single tree species of forest communities, which may be the result of biotic interactions between the genetic structure of a species and the species composition of its community. This observation also suggests the importance of intraspecific genetic variation for interspecific adaptation.</p></abstract>

Studies on plant communities of various annual species suggest that there are particular biotic interactions among individuals from different species which could be the basis for long-term species coexistence. In the course of a large survey on species-genetic diversity relationships in several forest tree communities, it was found that statistically significant differences exist among isozyme genotype frequencies of conspecific tree groups, which differ only by species identity of their neighbours. Based on a specific measure, the association of the neighbouring species with the genotypes of the target species or that of the genotypes with the neighbouring species was quantified. Since only AAT and HEK of the five analysed enzyme systems differed in their genotype frequencies among several tree groups of the same target species, a potential involvement of their enzymatic function in the observed differences was discussed. The results of this study demonstrate a fine-scale genetic differentiation within single tree species of forest communities, which may be the result of biotic interactions between the genetic structure of a species and the species composition of its community. This observation also suggests the importance of intraspecific genetic variation for interspecific adaptation.

Genotype-Species Interactions in Neighbourhoods of Forest Tree Communities

Silvae Genetica

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

{"article-title":"Genotype-Species Interactions in Neighbourhoods of Forest Tree Communities"}

Studies on plant communities of various annual species suggest that there are particular biotic interactions among individuals from different species which...

Genotype-Species Interactions in Neighbourhoods of Forest Tree Communities

Publié en ligne: 14 oct. 2017

Pages: 101 - 110

Reçu: 13 déc. 2005

DOI: https://doi.org/10.1515/sg-2007-0016

Mots clés
Association, tree species, neighbourhood, isozymes, species-genotype interaction

© 2017

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Genotype-Species Interactions in Neighbourhoods of Forest Tree Communities

Publié en ligne: 14 oct. 2017

Pages: 101 - 110

Reçu: 13 déc. 2005

DOI: https://doi.org/10.1515/sg-2007-0016

Mots clésAssociation, tree species, neighbourhood, isozymes, species-genotype interaction

© 2017

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Mots clés
Association, tree species, neighbourhood, isozymes, species-genotype interaction