6533b7d5fe1ef96bd12653a1
RESEARCH PRODUCT
Narrow genetic base in forest restoration with holm oak (Quercus ilex L.) in Sicily
Miguel NavascuésÁNgel LoraSilvio FiciÁLvaro SotoConcetta Burgarellasubject
0106 biological sciencesQuercus ilex / plantation / genetic diversity / effective population size / microsatelliteForest managementmedicine.disease_cause010603 evolutionary biology01 natural sciencesGenetic diversityForest restorationEffective population sizeEffective population sizePollenmedicineQuantitative Biology - Populations and EvolutionPlantationGenetic diversity[SDV.GEN.GPO]Life Sciences [q-bio]/Genetics/Populations and Evolution [q-bio.PE]EcologybiologySettore BIO/02 - Botanica SistematicaPopulations and Evolution (q-bio.PE)SowingMicrosatellitefood and beveragesForestryForestry15. Life on landbiology.organism_classificationFagaceaeQuercus ilexAgronomySeedlingFOS: Biological sciences010606 plant biology & botanydescription
International audience; In order to empirically assess the effect of actual seed sampling strategy on genetic diversity of holm oak (Quercus ilex) forestations in Sicily, we have analysed the genetic composition of two seedling lots (nursery stock and plantation) and their known natural seed origin stand by means of six nuclear microsatellite loci. Significant reduction in genetic diversity and significant difference in genetic composition of the seedling lots compared to the seed origin stand were detected. The female and the total effective number of parents were quantified by means of maternity assignment of seedlings and temporal changes in allele frequencies. Extremely low effective maternity numbers were estimated (Nfe $\approx$ 2-4) and estimates accounting for both seed and pollen donors gave also low values (Ne $\approx$ 35-50). These values can be explained by an inappropriate forestry seed harvest strategy limited to a small number of spatially close trees.
year | journal | country | edition | language |
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2007-01-01 |