Evolutionary Fingerprinting of Genes

Physico-chemical fingerprinting of RNA genes

We advance here a novel concept for characterizing different classes of RNA genes on the basis of physico-chemical properties of DNA sequences. As knowledge-based approaches could yield unsatisfactory outcomes due to limitations of training on available experimental data sets, alternative approaches that utilize properties intrinsic to DNA are needed to supplement training based methods and to ...

Determining Difference in Evolutionary Variation of Bacterial RecA proteins vs 16SrRNA Genes by using 16s_Toxonomy Tree

Background and Aims: The rate of variation in various genes of a bacterial species is different during evolution. Therefore, in systematic bacterial studies many researchers compare the phylogenetic tree of a particular gene to the standard tree of an rRNA gene. Regarding the importance of 16SrRNA gene and the evolutional process of RecA protein family, we investigated the changes in the select...

DNA Fingerprinting by PCR Amplification of HLA Genes

Evolutionary Similarity Among Genes

An evolutionary history of a set of organisms is a family tree, or topology, with branches of various lengths between vertices that describe how closely the organisms are related to each other. We consider the K evolutionary histories of K genes from a set of N organisms. Evolutionary similarity (ES) occurs when the branching patterns and relative branch lengths in the K evolutionary histories ...

Evolutionary Origin of Orphan Genes

Orphangenes aregenes thatoccur in specific evolutionary lineages without similarity to genes outside of these lineages and have, therefore, alternatively been named taxonomically restricted genes. They were so far considered to emerge through duplication–divergence processes,but it isnow becomingclear that they canalso arise de novo out of noncoding deoxyribonucleic acid (DNA). This latter proc...