We present a phylogenetic analysis of nine strains of symbiotic nitrogen-fixing bacteria isolated from nodules of tagasaste (Chamaecytisus proliferus) and other endemic woody legumes of the Canary Islands, Spain. These and several reference strains were characterized genotypically at different levels of taxonomic resolution by computer-assisted analysis of 16S ribosomal DNA (rDNA) PCR-restricti...

Unambiguous determination of genetic relationships is important to understand mating patterns and population structures. For example, thorough social studies of lekking or cooperatively breeding species require that parentage and other close genetic relationships be determined. Similarly, although extrapair copulations (EPC) have been documented in several bird species (e.g. Birkhead 1987, West...

brassica chinensis l. is a popular vegetable, especially in asian dishes. for plant growing withinorganic fertilizer, cadmium (cd) has been one of the highest metal and health-risk factors included. thisresearch aimed to assess the bioaccumulation of cd by the plant and its genetic changes. the plant was grownin the soil supplemented by cd at 0, 15, 30, 60 and 120 mg/kg. the accumulations in th...

An application of DNA fingerprints (DFP) for gene introgression in breeding programs of both farm animals and plants is proposed. DFP loci, detectable by minisatellite probes, are extremely polymorphic. Individuals have unique patterns of DFP and thus can be selected for maximal genomic similarity to the recipient line, and minimal similarity to the donor line, using their DFP patterns as the c...

Quantification of similarities between protein sequences or DNA/RNA strands is a (sub-)task that ubiquitously present in bioinformatics workflows, and usually accomplished by pairwise comparisons sequences, utilizing simple ( e.g. percent identity) more intricate concepts substitution scoring matrices). Complex tasks (such as clustering) rely on large number under the hood, instead direct quant...

In spite of the increasing application of DNA fingerprinting to natural populations and to the genetic identification of humans, explicit methods for estimation of basic population genetic parameters from DNA fingerprinting data have not been developed. Contributing to this omission is the inability to determine, for multilocus fingerprinting probes, relatively important genetic information, su...

DNA fingerprinting is a genetic typing technique that allows the analysis of the genomic relatedness between samples, and the comparison of DNA patterns. This technique has multiple applications in different fields (medical diagnosis, forensic science, parentage testing, food industry, agriculture and many others). An important task in molecular epidemiology of infectious diseases is the analys...

Biometric systems are alternates to the traditional identification systems. This paper provides an overview of single feature and multiple features based biometric systems, including the performance of physiological characteristics (such as fingerprint, hand geometry, head recognition, iris, retina, face recognition, DNA recognition, palm prints, heartbeat, finger veins, palates etc) and behavi...

Texas snowbells (Styrax platanifolius var. texanus) is one of the most threatened native Texas plants. A preliminary study using DNA fingerprinting (RAPDs) was performed on plants from three natural populations. Almost no genetic variation was found, either within or between these three populations. Implications for conservation are discussed. Phytologia 93(2):198-202 (August 1, 2011)

The distinction between viable and dead bacterial cells poses a major challenge in microbial diagnostics. Due to the persistence of DNA in the environment after cells have lost viability, DNA-based quantification methods overestimate the number of viable cells in mixed populations or even lead to false-positive results in the absence of viable cells. On the other hand, RNA-based diagnostic meth...