Determining true genetic dissimilarity between individuals is an important and decisive point for clustering and analysing diversity within and among populations, because different dissimilarity indices may yield conflicting outcomes. We show that there are no acceptable universal approaches to assessing the dissimilarity between individuals with molecular markers. Different measures are releva...

The alterations caused by eight different similarity coefficients were evaluated in the clustering and ordination of 27 common bean cultivars analyzed by RAPD markers. The Anderberg, simple matching, Rogers and Tanimoto, Russel and Rao, Ochiai, Jaccard, Sorensen-Dice, and Ochiai II's [4] coefficients were tested. Comparisons among the coefficients were made through correlation analysis of genet...

Morphological characters and Electrophoretic SDS-PAGE analysis were performed to established genetic diversity for six important lentil varieties of Bangladesh and to elucidate their genetic relationships. Analyses of variance of morphological characters showed significant differences among varieties. The resulted protein banding pattern showed 57.12% polymorphism and could be considered as gen...

The Indian black berry (Syzygium cumini Skeels) has a great nutraceutical and medicinal properties. As in other fruit crops, the fruit characteristics are important attributes for differentiation were also determined for different accessions of S. cumini. The fruit weight, length, breadth, length: breadth ratio, pulp weight, pulp content, seed weight and pulp: seed ratio significantly varied in...

In this paper, a classification task on dissimilarity representations is considered. A traditional way to discriminate between objects represented by dissimilarities is the nearest neighbor method. It suffers, however, from a number of limitations, i.e., high computational complexity, a potential loss of accuracy when a small set of prototypes is used and sensitivity to noise. To overcome these...

The genus Burkholderia (β-Proteobacteria) currently comprises more than 60 species, including parasites, symbionts and free-living organisms. Several new species of Burkholderia have recently been described showing a great diversity of phenotypes. We examined the diversity of Burkholderia spp in environmental samples collected from Caatinga and Atlantic rainforest biomes of Bahia, Brazil. Legum...

This paper presents the results of classifying Arabic text documents using the N-gram frequency statistics technique employing a dissimilarity measure called the “Manhattan distance”, and Dice’s measure of similarity. The Dice measure was used for comparison purposes. Results show that N-gram text classification using the Dice measure outperforms classification using the Manhattan measure.

Genetic relationship among 17 citrus commercially important cultivars, including local and some hybrid varieties of Pakistan was evaluated by RAPD (Random Amplified Polymorphic DNA) markers. Fifteen decamer primers were selected out of 25 primers that produced 153 polymorphic bands with 13bands per primer on an average with a total of 188 bands. To analyze the genetic similarity or dissimilarit...