Patterns of genetic varition and hybridization in a mixed oak (Quercus spp.) forest

··· lezzter Preis 25.65€ ··· 9783865379979 ··· 10361158380 ···
The present study is the first documentation on genetic variation and hybridization within such a complex natural community of oak species (Quercus spp.). It is also the first report of the use of microsatellite analysis in Q. frainetto, a relatively widespread species in the Balkan region and in southern Italy. Multiple morphological characters as well as three types of genetic markers were used to discriminate between species and their hybrids. In addition, paternity analysis was performed to retrace the patterns of contemporary gene flow and hybridization within this species-rich oak community. Both chloroplast and nuclear genetic markers discriminated clearly between Q. cerris and the group consisting of the four other white oak species, which is consistent with the taxonomical scheme. In contrast, within the white oak group, the species shared the most common chloroplast haplotypes which might be interpreted as an evidence for interspecific gene flow in a relatively recent past. Both categories of nuclear markers, isozymes and microsatellites, have revealed high levels of genetic variation within species. The amount of genetic differentiation estimated across all loci using nuclear markers was always significant (P
Hersteller: Cuvillier Verlag
Marke: Cuvillier Verlag
EAN: 9783865379979
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5: Ab 20¤ Versandkostenfrei in Deutschland
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7: Patterns of genetic varition and hybridization in a mixed oak (Quercus spp.) forest
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Patterns of genetic varition and hybridization in a mixed oak (Quercus spp.) forest

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