Progress in developmental biology, phylogenomics and palaeontology over the past five years are all making major contributions to a long-enduring problem in comparative biology: the early origins of the deuterostome phyla. Recent advances in the developmental biology of hemichordates have given a unique insight into developmental similarities between this phylum and chordates. Transcriptional a...

Knowledge of relatedness among maize elite breeding genotypes is useful in planning crosses for hybrid and inbred line improvement assigning them into heterotic groups. This study investigated phenotypic genetic similarities or diversities between 7 flint lines (of common origin) adapted to the early growing regions created at ARDS Turda-Romania. They were studied per se traits two crossing sys...

In this paper, we de ne sorting network isomorphism and examine its relationship to graph-theoretic problems. We devise the normalization technique that exploits the functional similarities of sorting networks, which in turn helps genetic algorithms avoid too much perturbation. The sorting network isomorphism provides the basis for the normalization. In addition, we developed an e ective local ...

Meiosis is a specialised type of cell division in sexually reproducing organisms that generates genetic diversity and prevents chromosome doubling in successive generations. The last decade has seen forward and reverse genetic approaches identifying many genes in the plant kingdom which highlight similarities and differences in the mechanics of meiosis between taxonomic kingdoms. We present her...

The nematode Caenorhabditis elegans is excellently suited as a model for studying the genetic and molecular genetic basis of aging, and to test chemical compounds that interfere with the aging process. Mutants of factors in both the insulin and target of rapamycin (TOR) signalling pathways have been shown to extend life span of the worm. Phenotypic similarities among those mutants suggested tha...

mahoganoid is a mouse coat-color mutation whose pigmentary phenotype and genetic interactions resemble those of Attractin (Atrn). Atrn mutations also cause spongiform neurodegeneration. Here, we show that a null mutation for mahoganoid causes a similar age-dependent neuropathology that includes many features of prion diseases but without accumulation of protease-resistant prion protein. The gen...

Recent comparative studies have shown that, in many instances, the genetic network underlying the development of distinct organ systems is similar in invertebrate and vertebrate organisms. Genetically well-characterized, simple invertebrate model systems, such as Caenorhabditis elegans and Drosophila melanogaster, can thus provide useful insight for understanding more complex organ systems in v...

Genetic phylogenetic relationships in the fourteen accessions of Carissa opaca L. have been analyzed using ISSR markers. At the genetic level a lot of heterogeneity has been observed among the accessions of Carissa and the similarities varied from 30-86% with the help of cluster analysis. This study is showed PCR based amplification of DNA from the 14 accessions of Carissa plant which were coll...

The incidence of invasive uterine cervical cancer in Israeli Jewish women is persistently lower than in many other countries, although the frequency of premalignant lesions is similar to that in other populations. Most characteristics, except certain traditional habits, are similar to those in other populations. The incidence among women born in North Africa and their Israeli born descendants i...