Identifying plant taxa that honey bees (Apis mellifera) forage upon is of great apicultural interest, but traditional methods are labor intensive and may lack resolution. Here we evaluate a high-throughput genetic barcoding approach to characterize trap-collected pollen from multiple North Dakota apiaries across multiple years. We used the Illumina MiSeq platform to generate sequence scaffolds ...

Identification and quantification of microorganisms is a significant step in studying the alpha and beta diversities within and between microbial communities respectively. Both identification and quantification of a given microbial community can be carried out using whole genome shotgun sequences with less bias than when using 16S-rDNA sequences. However, shared regions of DNA among reference g...

Molecular ecological studies have revealed that deep-sea sediments contained more than 1300 different actinobacterial operational taxonomic units, most of which were predicted to represent novel species, genera and families (Stach and Bull, 2005). It is not surprising, therefore, that members of 50 genera, including 12 novel genera, of actinobacteria have been isolated from marine habitats (Goo...

A phylogeny is a tree that relates taxonomic units, based on their similarity over a set of characters. The phylogeny problem consists in finding a phylogeny with the minimum number of evolutionary steps. We propose a new neighborhood structure for the phylogeny problem. A greedy randomized adaptive search procedure heuristic based on this neighborhood structure and using variable neighborhood ...

UNLABELLED Selection of optimal biomarkers for the identification of different operational taxonomic units (OTUs) may be a hard and tedious task, especially when phylogenetic trees for multiple genes need to be compared. With TaxonGap we present a novel and easy-to-handle software tool that allows visual comparison of the discriminative power of multiple biomarkers for a set of OTUs. The compac...

The methanogenic community structures of six anaerobic sludges were examined using culture-independent techniques. The sludges were obtained from full-scale and laboratory-scale bioreactors, treating a variety of low- and high-strength, simple and complex wastewaters at psychrophilic (10-14 degrees C), mesophilic (37 degrees C) and thermophilic (55 degrees C) temperatures. Amplified rDNA restri...

Title Type comparative anatomical aspects of the mammalian brain stem and the cord volume i text PDF control of gaze by brain stem neurons developments in neuroscience volume 1 PDF cord blood characteristics role in stem cell transplantation PDF cord blood establishing a national hematopoietic stem cell bank program PDF cytoarchitecture of the human brain stem PDF comparative neurobiology in ch...

Background Early marker-based metagenomic studies, such as those of the human microbiome, were performed without properly accounting for the effects of noise (pyrosequencing errors, PCR single-base errors, and PCR chimeras). One popular solution to address these issues is to utilize AmpliconNoise [1]. This collection of algorithms was validated on mock community datasets in which the ‘correct’ ...

In the present investigation, the abundance and molecular phylogeny of part of the culturable bacterial population involved in the dissolution of "miliolite", a bioclastic limestone, from Gopnath, India, was studied. Carbonate-dissolving bacteria were isolated, enumerated and screened for their ability to dissolve miliolite. Amplified ribosomal DNA restriction analysis (ARDRA) indicated 14 oper...