Somatic karyotype analysis of Uvularia floridana Chapman (Liliaceae).

Nutrient foraging in woodland herbs: a comparison of three species of Uvularia (Liliaceae) with contrasting belowground morphologies.

We compared the ability of three closely related species, Uvularia perfoliata, U. sessilifolia, and U. puberula, to forage and explore patches in nutritionally homogeneous and heterogeneous environments. The species differed in type and function of plagiotropic stems and the extent of clonality and physiological integration. Our aim was to determine (1) whether selective placement of roots in h...

Molecular Systematics of the Genus Uvularia and Selected Liliales Based upon matK and rbcL Gene Sequence Data

To elucidate the affinity and phylogeny of the endemic North American genus Uvularia, two chloroplast genes, matK and rbcL, were sequenced for all five species of the genus {Uvularia floridana, U. grandifolia, U. perfoliata, U. puberula, and U. sessilifolia) and four selected members of the Liliales (Erythronium japonicum, Disporum sessile, Medeola virginiana, and Clintonia borealis). Sequence ...

Genome Size Diversity in Lilium (Liliaceae) Is Correlated with Karyotype and Environmental Traits

Genome size (GS) diversity is of fundamental biological importance. The occurrence of giant genomes in angiosperms is restricted to just a few lineages in the analyzed genome size of plant species so far. It is still an open question whether GS diversity is shaped by neutral or natural selection. The genus Lilium, with giant genomes, is phylogenetically and horticulturally important and is dist...

Karyotype Analysis of Vulpes vulpes (Common Fox) of Iran

Karyotype analysis of Rheum palmatum.

Rheum palmatum, one of the source plants of the traditional Chinese medicine rhubarb, is anendemic and endangered species. To our knowledge, this is the first report on the chromosome number and karyotype of this species. Sectioning combined with micrography was used to analyze the karyotype. The following results were obtained: R. palmatum had a stable chromosome number 2n = 22; the basic numb...