Molecular Phylogenetics

Molecular Phylogentics is the branch of phylogeny that analyses hereditary molecular differences, mainly in DNA sequences, to gain information on an organism's evolutionary relationships.   The result of a molecular phylogenetic analysis is expressed in a phylogenetic tree. Phylogenies are important for addressing various biological questions such as relationships among species or genes, the origin and spread of viral infection and     the demographic changes and migration patterns of species. Phylogenies have permeated nearly every branch of biology, and the plethora of phylogenetic methods and software packages that are now available may seem daunting to an experimental biologist.

 

Molecular phylogenetics predates DNA sequencing by several decades. It is derived from the traditional method for classifying organisms according to their similarities and differences, as first practiced in a comprehensive fashion by Linnaeus in the 18th century. Linnaeus was a systematicist not an evolutionist, his objective being to place all known organisms into a logical classification which he believed would reveal the great plan used by the Creator - the Systema Naturae. However, he unwittingly laid the framework for later evolutionary schemes by dividing organisms into a hierarchic series of taxonomic categories, starting with kingdom and progressing down through phylum, class, order, family and genus to species. The naturalists of the 18th and early 19th centuries likened this hierarchy to a ‘tree of life’ an analogy that was adopted by Darwin (1859) in The Origin of Species as a means of describing the interconnected evolutionary histories of living organisms. The classificatory scheme devised by Linnaeus therefore became reinterpreted as a phylogeny indicating not just the similarities between species but also their evolutionary relationships.

 

Related Conferences:

6th International Conference on Bioscience, Biochemistry and Bioinformatics, Pattaya, Thailand- IEEE CIBCB-2016, Chiang Mai, Thailand- Bridging Fungal Genetics, Evolution, Ecology, Paris, France- The 20th Annual New Zealand Phylogenomics Meeting - The Interface of Mathematics and Biology, North Island, New Zealand- EB San Deigo-2016, CA, USA- Evolution 2016, Texas, USA- A Conference of the American Society of Naturalists, CA, USA- SICB Annual Meeting 2016, OR, USA- XVth ESEB Meeting, Lausanne, Switzerland- The 2nd Systematic and Evolutionary Biology Conference, Nanjing, China.

  • Computational phylogenetics
  • Phylogenetic tree
  • Limitations of molecular systematics
  • Evolutionary Biology
  • Alignment Techniques
  • gene duplication and divergence

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