منابع مشابه
Ancestral lineages of arbuscular mycorrhizal fungi (Glomales).
Using new and existing 18S rRNA sequence data, we show that at least five species of glomalean fungi lie outside the previously defined families and diverged very early in the evolution of that group. These five fungi would have been missed by many previous ecological studies because their sequences are not well matched to available taxon-specific primers and they do not stain well with the sta...
متن کاملGene diversity and female philopatry.
The effect of female philopatry on the apportionment of gene diversity within a population is evaluated. Even with random mate selection, the apportionment of gene diversity within and among social lineages (groups of related females) is inherently different than in classically defined demic groups. Considerable excess heterozygosity occurs within lineages without substantial changes in total o...
متن کاملgene diversity of trichomonas vaginalis isolates
background: trichomonas vaginalis is protozoan parasite responsible for trichomoniasis and is more common in high-risk behavior group such as prostitute individuals. interest in trichomoniasis is due to increase one's susceptibility to viruses such as herpes, human papillomavirus and hiv. the aim of this study was to find genotypic differences between the isolates. methods: forty isolates from...
متن کاملGene Diversity of Trichomonas vaginalis Isolates
BACKGROUND Trichomonas vaginalis is protozoan parasite responsible for trichomoniasis and is more common in high-risk behavior group such as prostitute individuals. Interest in trichomoniasis is due to increase one's susceptibility to viruses such as herpes, human papillomavirus and HIV. The aim of this study was to find genotypic differences between the isolates. METHODS Forty isolates from ...
متن کاملMechanisms for diversity in gene expression patterns.
Despite the relatively low number of transcriptional regulatory proteins, the number of possible combinations that act in particular cell types at specific times and in response to appropriate extracellular stimuli is enormous. In considering the regulatory patterns of a particular gene, the critical determinants of diversity are the specific promoter sequences that govern the potential DNA-bin...
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ژورنال
عنوان ژورنال: New Phytologist
سال: 1999
ISSN: 0028-646X,1469-8137
DOI: 10.1046/j.1469-8137.1999.00526.x