Synteny and collinearity in plant genomes.
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.
Tang
Haibao
H
Plant Genome Mapping Laboratory, University of Georgia, Athens, GA 30602, USA.
Bowers
John E
JE
Wang
Xiyin
X
Ming
Ray
R
Alam
Maqsudul
M
Paterson
Andrew H
AH
D005075:Biological Evolution; D032461:Chromosomes, Plant / Q000235:genetics; D020440:Gene Duplication; D023061:Gene Order; D015321:Gene Rearrangement; D018745:Genome, Plant; D023281:Genomics; D007621:Karyotyping; D019684:Magnoliopsida / Q000145:classification / Q000235:genetics*; D010802:Phylogeny; D011123:Polyploidy; D017422:Sequence Analysis, DNA; D026801:Synteny