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Full-Text Articles in Life Sciences
Phylogenetic Relationships In Nuphar (Nymphaeaceae): Evidence From Morphology, Chloroplast Dna, And Nuclear Ribosomal Dna, Donald Padgett, D. H. Les, G. E. Crow
Phylogenetic Relationships In Nuphar (Nymphaeaceae): Evidence From Morphology, Chloroplast Dna, And Nuclear Ribosomal Dna, Donald Padgett, D. H. Les, G. E. Crow
Biological Sciences Faculty Publications
The genus Nuphar consists of yellow-flowered waterlilies and is widely distributed in north-temperate bodies of water. Despite regular taxonomic evaluation of these plants, no explicit phylogenetic hypotheses have been proposed for the genus. We investigated phylogenetic relationships in Nuphar using morphology and sequences of the chloroplast gene matK and of the internal transcribed spacer (ITS) regions of nuclear ribosomal DNA. Two major lineages within Nuphar are consistently resolved with the morphological and molecular data sets. One lineage comprises New World taxa and the other represents a primarily Old World lineage. Relationships within the major lineages were poorly resolved by morphology …
Expression Of Cell Adhesion In Molecules In Murine Placentas And A Placental Cell Line, Jeffery Bowen, J. S. Hunt
Expression Of Cell Adhesion In Molecules In Murine Placentas And A Placental Cell Line, Jeffery Bowen, J. S. Hunt
Biological Sciences Faculty Publications
Integrins and vascular cell adhesion molecule-1 (VCAM-1) are required for normal placental development. In this study, integrin subunits α4, αv, β1, and β3, and VCAM-1 were investigated for expression in uteroplacental units (gestation day [g.d.] 6 and 8) and placentas (g.d. 10, 12, 14, 16, and 18) of Swiss-Webster mice. All subunits and VCAM-1 mRNA (identified by reverse transcriptase polymerase chain reaction [RT-PCR]) and protein (detected by immunofluorescence) were present in all tissues throughout gestation. VCAM-1 was expressed strongly in the ectoplacental cone and trophoblast giant cells, α4 was expressed strongly by trophoblast giant cells and moderately by spongiotrophoblast and …
Nomenclatural Novelties In Nuphar (Nymphaeaceae), Donald Padgett
Nomenclatural Novelties In Nuphar (Nymphaeaceae), Donald Padgett
Biological Sciences Faculty Publications
Recent revisionary and cladistic studies in Nuphar Sm. resulted in the following nomenclatural amendments: two novel sections are described (sect. Nuphar and sect. Astylus), five new combinations are proposed (N. advena subsp. orbiculata, N. advena subsp. ozarkana, N. advena subsp. ulvacea, N. pumila subsp. sinensis, N. pumila subsp. oguraensis), and one species, N. oguraensis Miki, is lectotypified.