• Corpus ID: 207812057

CHANGING GENETIC STRUCTURE OF A SAVANNA BUR OAK POPULATION

@inproceedings{Dow2007CHANGINGGS,
  title={CHANGING GENETIC STRUCTURE OF A SAVANNA BUR OAK POPULATION},
  author={Beverly D. Dow and Mary V. AshleyZ},
  year={2007}
}
Genetic relatedness among adult bur oaks and among saplings in a remnant savanna in Illinois was compared using data from four microsatellite loci for evidence of changes in genetic structure. Relatedness among all adults in the stand was close to zero (0.005) while that among all saplings was substantially higher (0.075). When the stand was divided into spatial groups of trees, relatedness of adults within those spatial groups was always slightly negative (indicating lower relatedness than… 

Figures and Tables from this paper

References

SHOWING 1-10 OF 15 REFERENCES
Microsatellite analysis of seed dispersal and parentage of saplings in bur oak, Quercus macrocarpa
TLDR
This study demonstrates the utility of microsatellite analysis for studying mating systems, seed dispersal and seedling establishment in natural plant populations.
Genetic variation in space and time in a population of ponderosa pine
TLDR
The genetic structure of a population of Pinus ponderosa was studied using seven electrophoretically-detectable protein loci and results imply that the population is composed of groups of individuals assembled into genetically-related family units.
Factors influencing male mating success in bur oak, Quercus macrocarpa
TLDR
Interestingly, none of these factors were strongly correlated with fertilization success, although weak but significant correlations with crown volume and distance were found, and the results further emphasize the importance of genetically identifying successful pollen donors rather than relying on patterns of physical movement of pollen.
Genetic structure after forest fragmentation: a landscape ecology perspective on Acer saccharum
TLDR
Estimates of gene flow indicate that postfragmentation gene flow rates are higher than prefragmentation rates, and that sugar maple's high potential for long-dista...
Genetic structure of black spruce on two contrasting sites
TLDR
On the upland site, the mature trees were more inbred, possibly due to the conditions under which regeneration occurred and because of weak selective pressure, while on the lowland site, clustering of similar genotypes was detectable on a local scale but the mature Trees were not inbred.
LIMITED SEED DISPERSAL AND GENETIC STRUCTURE IN LIFE STAGES OF CECROPIA OBTUSIFOLIA
TLDR
The results show that the type of dispersal system of C. obtusifolia causes marked genetic spatial autocorrelations among the often large numbers of seedlings concentrated within canopy gaps, and genetic correlations among progeny, clustered near their maternal parent because of limited seed dispersal, are predicted to result in substantial genetic structure.
DEMOGRAPHIC GENETICS OF A PIONEER TROPICAL TREE SPECIES: PATCH DYNAMICS, SEED DISPERSAL, AND SEED BANKS
TLDR
For each life stage, FST‐statistics were significantly higher when individuals were grouped by gaps, although concordant patterns across life stages for the three grouping methods were obtained, supporting the hypothesis that patchy recruitment in gaps or among‐gap heterogeneity influences the species' genetic structure.
SPATIAL GENETIC STRUCTURE IN TWO TAMARACK [LARIX LARICINA (DU ROI) K. KOCH] POPULATIONS WITH DIFFERING ESTABLISHMENT HISTORIES
TLDR
The objective was to determine if the two populations had differing patterns of genetic structure which might be attributable to their differing origins, and to use spatial autocorrelation analysis to examine the distribution of allozyme phenotypes in two tamarack populations.
Ten years of tree seedling establishment and mortality in an Ohio deciduous forest complex
TLDR
Ash seedlings were more abundant in lowland than upland plots, whereas the pattern for maple seedlings was the reverse, and deer browsing was more important than environmental gradients or climate factors in determining seedling longevity and mortality.
Woodland canopy structure and the light response of juvenile Quercus lobata (Fagaceae)
TLDR
Canopy effects on understory light supply may restrict juvenile recruitment of valley oak in this woodland, and the distance between young valley oaks and neighboring overstory trees to increase with neighbor size, and crowns of the young oaks to be skewed away from neighbors.
...
...