Multi-locus phylogeny and taxonomy of an unresolved, heterogeneous species complex within the genus Golovinomyces (Ascomycota, Erysiphales), including G. ambrosiae, G. circumfusus and G. spadiceus.

Background: Previous phylogenetic analyses of species within the genus Golovinomyces (Ascomycota, Erysiphales), based on ITS and 28S rDNA sequence data, revealed a co-evolutionary relationship between powdery mildew species and hosts of certain tribes of the plant family Asteraceae. Golovinomyces growing on host plants belonging to the Heliantheae formed a single lineage, comprised of a morphologically differentiated complex of species, which included G. ambrosiae, G.

[The dissemination of CMV in urine of different group from Guangxi and the relationship between CMV infection and renal disease].

Objective: To detect Human Cytomegalovirus (HCMV) DNA in urine samples from the following groups: pregnant women, sick newborns, hospitalized nephropathy patients, renal transplant recipients and normal population. Preliminarily study the relationship of HCMV infection and renal disease.

Methods: To detect HCMV DNA in morning urine samples by Real-time fluorescence quantitative PCR (FQ-PCR).

[Studies on the chemical components and antibacterial activity of essential oil from the leaves of Rubus corchorifolius].

Objective: To analyze the chemical components of essential oil from the leaves of Rubus corchorifolius.

Methods: The essential oil was extracted by steam distillation, and then an analysis was conducted by applying GC-MS and Xcalibur Software. K-B filter paper method was used for their bacteriostasish.

[The genetic relation of four ethnic populations in China's Guizhou is revealed by sequence variations of mtDNA D-loop].

Objective: Through maternal inheritance, to explore the genetic structures and relationships of Dong, Gelao, Tujia and Yi ethnic population in Guizhou of China.

Methods: The mtDNA D-loop hypervariable segment I (HVS I ) in 108 samples of four ethnic populations were sequenced. Then, the nucleotide diversity was estimated and a phylogenetic tree was constructed by Neighbor-Joining method.