Gene flow and hybridisation in a mixed oak forest (Quercus pyrenaica Willd. and Quercus petraea (Matts.) Liebl.) in central Spain
نویسندگان
چکیده
منابع مشابه
Regeneration Patterns of European Oak Species (Quercus petraea (Matt.) Liebl., Quercus robur L.) in Dependence of Environment and Neighborhood
Quercus robur L. (pedunculate oak) and Quercus petraea (Matt.) Liebl. (sessile oak) are two European oak species of great economic and ecological importance. Even though both oaks have wide ecological amplitudes of suitable growing conditions, forests dominated by oaks often fail to regenerate naturally. The regeneration performance of both oak species is assumed to be subject to a variety of v...
متن کاملEffects of thinning on soil and tree water relations, transpiration and growth in an oak forest (Quercus petraea (Matt.) Liebl.).
To quantify the effects of crown thinning on the water balance and growth of the stand and to analyze the ecophysiological modifications induced by canopy opening on individual tree water relations, we conducted a thinning experiment in a 43-year-old Quercus petraea stand by removing trees from the upper canopy level. Soil water content, rainfall interception, sap flow, leaf water potential and...
متن کاملAdditivity in tree biomass components of Pyrenean oak (Quercus pyrenaica Willd.)
In tree biomass estimations, it is important to consider the property of additivity, i.e., the total tree biomass should equal the sum of the components. This work presents functions that allow estimation of the stem and crown dry weight components of Pyrenean oak (Quercus pyrenaica Willd.) trees. A procedure that considers additivity of tree biomass components is presented, and applied to a pa...
متن کاملEnvironmental conditions and oak barrels timber quality: Which is the influence in the Quercus petraea Matts. Liebl. forests in the Iberian Peninsula?
The autoecology of the oak Quercus petraea in the northwest Iberian Peninsula was investigated in the present study by applying the methodology developed in previous studies of other species of the genus Quercus. For this, the distribution of the species was firstly determined so that a minimum number of representative species could be selected. A total of 52 plots were chosen and in each one, ...
متن کاملThree divergent rDNA clusters predate the species divergence in Quercus petraea (Matt.) Liebl. and Quercus robur L.
Quercus petraea and Quercus robur are two closely related oak species that frequently hybridize. We sequenced 70 clones containing the 5.8S and ITS2 regions of ribosomal DNA (rDNA) from these two species and did not detect a species-specific difference. Surprisingly, three divergent (up to 12.6%) rDNA families were identified in both species, indicating that they predate the speciation event. D...
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ژورنال
عنوان ژورنال: Heredity
سال: 2005
ISSN: 0018-067X,1365-2540
DOI: 10.1038/sj.hdy.6800752