Populus tremuloides: We Are One
نویسندگان
چکیده
منابع مشابه
Microsatellite DNA markers in Populus tremuloides.
Markers for eight new microsatellite DNA or simple sequence repeat (SSR) loci were developed and characterized in trembling aspen (Populus tremuloides) from a partial genomic library. Informativeness of these microsatellite DNA markers was examined by determining polymorphisms in 38 P. tremuloides individuals. Inheritance of selected markers was tested in progenies of controlled crosses. Six ch...
متن کاملDistribution and Anatomical Characteristics of White Rings in Populus Tremuloides
ʻWhite rings ̓have been reported to occur within trembling aspen (Populus tremuloides Michx.) during years of intense early defoliation by the forest tent caterpillar (Malacosoma disstria Hbn.). This study was undertaken to 1) assess the distribution of white rings within trembling aspen stems and 2) to quantify the anatomical differences between white rings and the ʻnormal ̓rings formed in the p...
متن کاملWidespread Triploidy in Western North American Aspen (Populus tremuloides)
We document high rates of triploidy in aspen (Populus tremuloides) across the western USA (up to 69% of genets), and ask whether the incidence of triploidy across the species range corresponds with latitude, glacial history (as has been documented in other species), climate, or regional variance in clone size. Using a combination of microsatellite genotyping, flow cytometry, and cytology, we de...
متن کاملClonal dynamics in western North American aspen (Populus tremuloides).
Clonality is a common phenomenon in plants, allowing genets to persist asexually for much longer periods of time than ramets. The relative frequency of sexual vs. asexual reproduction determines long-term dominance and persistence of clonal plants at the landscape scale. One of the most familiar and valued clonal plants in North America is aspen (Populus tremuloides). Previous researchers have ...
متن کاملAre We One?
A fundamental assumption of cognitive science is that the individual is the correct unit of analysis. I present evidence that this assumption may have limited utility, that the social networks containing the individuals are an important additional unit of analysis, and that the distribution of intelligence across individuals in the social network is significantly mediated by non-linguistic proc...
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ژورنال
عنوان ژورنال: The Trumpeter
سال: 2018
ISSN: 1705-9429
DOI: 10.7202/1050867ar