Who am I this time? The affinities and misbehaviors of Hill’s oak (Quercus ellipsoidalis)

Taxonomy of Hill’s Oak (Quercus ellipsoidalis: Fagaceae): Evidence from AFLP Data

Quercus ellipsoidalis (Hill’s oak), an endemic of east-central North America, is morphologically similar to Q. coccinea (scarlet oak) and is subsumed into that species in several floristic treatments. This study uses data from more than 250 amplified fragment length polymorphism (AFLP) markers to investigate whether Q. coccinea and Q. ellipsoidalis are genetically distinct from one another. Whe...

Taxonomy of Hill’s Oak (Quercus ellipsoidalis E.J. Hill) in the Chicago Region: Preliminary Molecular Evidence

Adaptive Variation and Introgression of a CONSTANS-Like Gene in North American Red Oaks

Oaks provide a model system to study maintenance of species identity by divergent selection since they maintain morphological differences and ecological adaptations despite interspecific hybridization. The genome of closely related interfertile oak species was shown to be largely homogeneous, with a few genomic areas exhibiting high interspecific differentiation possibly as result of strong div...

Acquisition of Ophiostoma quercus and Ceratocystis fagacearum by Nitidulids from O. quercus–Colonized Oak Wilt Mats

Oak wilt infection centers are initiated by overland spread of the causal fungus, Ceratocystis fagacearum (T. W. Bretz) J. Hunt, by insects (10). Sap-feeding beetles (Coleoptera: Nitidulidae) are considered a primary vector of the pathogen in the north central states (7,9). Successful transmission by sap-feeding beetles depends on several coexisting conditions, including (i) the availability of...

The effect of carbon nanotubes, calcium chloride and potassium nitrate on germination traits of Iranian Oak seed (Quercus brantii)

Extended Abstract Introduction: Iranian oak has the largest forest habitat in the country and has a high position in terms of economy and protection. Recent studies have confirmed the positive effects of carbon nanotubes on the germination and organ growth of herbaceous and woody species. Nanotechnology is an evolving field in all periods of human life and various research is done to use nanom...