Journal
MYCOLOGIA
Volume 106, Issue 5, Pages 889-895Publisher
TAYLOR & FRANCIS INC
DOI: 10.3852/12-344
Keywords
dry rot fungi; heterozygosity excess; population genetics; Serpulaceae; vegetative compatibility
Categories
Funding
- Region Bretagne
- Brest Metropole Oceane
- Norwegian Research Council
- University of Oslo
Ask authors/readers for more resources
In this study the genetic variation and population structure in a French population of the dry rot fungus S. lacrymans was investigated using 14 microsatellites markers and compared to the rest of Europe. In that comparison the French population possessed the same allelic diversity as rest of Europe. A weak geographic structuring of the genetic variation was observed across Europe, where the French isolates to some extent separated from the rest of Europe, indicating that weak barriers to gene flow exists. Eighty percent of the isolates had unique multilocus microsatellite genotypes, which corresponds to high recombination and dispersal by sexual spores. Deviations from Hardy-Weinberg expectations were observed in multiple loci. In most loci there was an excess of heterozygotes, which could be due to either non-random mating, presence of more than two nuclei in the secondary mycelia or another unrecognized process. A total of six vegetative compatibility (VC) groups were present in Europe, out of which four were sampled in France. One VC group was over-represented in France while two others were underrepresented, as compared to the rest of Europe.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available