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Synteny and Collinearity in Plant Genomes

2008/04/24 by Haibao Tang, John Bowers, John E. Bowers +5 · 57 citations
Biochemistry, Genetics and Molecular Biology · #Plant Reproductive Biology #Genomics and Phylogenetic Studies #Genetic Mapping and Diversity in Plants and Animals

paper · doi:10.1126/science.1153917

Abstract

Correlated gene arrangements among taxa provide a valuable framework for inference of shared ancestry of genes and for the utilization of findings from model organisms to study less-well-understood systems. In angiosperms, comparisons of gene arrangements are complicated by recurring polyploidy and extensive genome rearrangement. New genome sequences and improved analytical approaches are clarifying angiosperm evolution and revealing patterns of differential gene loss after genome duplication and differential gene retention associated with evolution of some morphological complexity. Because of variability in DNA substitution rates among taxa and genes, deviation from collinearity might be a more reliable phylogenetic character.

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