background and objective: acinetobacter baumannii is an aerobic non-motile gram-negative bacterial pathogen that is resistant to most antibiotics. carbapenems are the most common antibiotics for the treatment of infections caused by this pathogen. mechanisms of antibiotic-resistance in a. baumannii are mainly mediated by efflux pumps-lactamases. the aim of this study was to determine antibiotic...

Acidithiobacillus thiooxidans known for its ubiquity in diverse acidic and sulfur-bearing environments worldwide was used as the research subject in this study. To explore the genomic fluidity and intraspecific diversity of Acidithiobacillus thiooxidans (A. thiooxidans) species, comparative genomics based on nine draft genomes was performed. Phylogenomic scrutiny provided first insights into th...

The rep-PCR fingerprinting method, with the support of ERIC and REP primers, was used to analyse the genomic diversity of 93 E. coli strains isolated from lake water samples drawn at two different depths. The applied UPGMA for DNA analysis did not reveale any genomic similarities between the 48 E. coli strains derived from the subsurface-zone water and the 43 of the bottom-zone water. The consi...

Selection acting on genomic functional elements can be detected by its indirect effects on population diversity at linked neutral sites. To illuminate the selective forces that shaped hominid evolution, we analyzed the genomic distributions of human polymorphisms and sequence differences among five primate species relative to the locations of conserved sequence features. Neutral sequence divers...

Captive breeding programs are often initiated to prevent species extinction until reintroduction into the wild can occur. However, the evolution of captive populations via inbreeding, drift, and selection can impair fitness, compromising reintroduction programs. To better understand the evolutionary response of species bred in captivity, we used nearly 5500 single nucleotide polymorphisms (SNPs...

High levels of genomic and allelic microvariation have been found in major marine planktonic microbial species, including the ubiquitous open ocean cyanobacterium, Prochlorococcus marinus. Crocosphaera watsonii is a unicellular cyanobacterium that has recently been shown to be important in oceanic N2 fixation and has been reported from the Atlantic and Pacific oceans in both hemispheres, and th...

background: garlic is a valuable medicinal plant with variability in desirable morphological and physiological characteristics. the analysis of genetic diversity plays an important role in breeding programs. the rapd technique could be very effective in detecting genetic variation in garlic.  objective: the objective of the present work was to detect molecular polymorphism among iranian garlic ...

abstract       background and objectives: plasmodium falciparum merozoite surface protein-1 (pfmsp-1) is a promising vaccine against malaria during its blood stages which play an important role in immunity to this disease. polymorphic nature of this gene is a major obstacle in making an effective vaccine against malaria. in this study, the genetic diversity of plasmodium falciparum isolates was...

forty monoconidial isolates of magnaporthe grisea were examined, for an identification of vegetative compatibility group and a characterization of genetic diversity, using rep-pcr genomic fingerprinting. the isolates were collected from weeds digitaria sanguinalis (crabgrass), setaria italica (foxtail millet), echinochloa crus-galli (barnyard millet), and some other unknown ones during 2003 - 2...

diversity of durum wheat (triticum turgidum ssp. durum) germplasm was evaluated using simple sequence repeat (ssr) markers. one hundred and forty durum wheat genotypes of diverse origin (belonging to ten countries) were assessed using 48 selected ssrs with whole genome coverage. a total of 245 allelic variants were detected at 37 polymorphic ssr loci, ranging from two to seventeen per locus wit...