Comparative Analysis Of Plant Genome : An Overview Essay examples
Comparative genomics is used to study the similarities and differences in the structure and function of genome in living organisms. In the medical field, this information can help scientist to better understand the human genome. This allows them to develop new strategies to combat human disease. Comparative genomics is also a powerful tool to study the evolutionary relationship among organisms. We are able to identify genes that are conserved among the species. We can also identify genes that give organisms their unique and complex characteristics (Comparative Genomics Fact Sheet). This allows us to make inferences regarding the rate of evolution of particular genes, duplication events that lead to gene loss or retention, and chromosomal rearrangements (Paterson) .
However, to extrapolate genomic information from a model organism for comparison, an underlying assumption needs to be made. Thus the assumption that all higher plants have inherited modified gene order and content through common ancestry, are proven by comparative sequencing and cross hybridization of cDNA clones (Mohan). After two decades of study in the plant genomics research field, we are able provide a few conclusion. First, gene evolution is relatively slow in plants. Therefore, reproductively isolated taxa will retain recognizable intragenic DNA sequence and arrangements along the chromosome. Second, a lot of factors such as localized…