title: Comparative genomics of rice and Arabidopsis. Analysis of 727 cytochrome P450 genes and pseudogenes from a monocot and a dicot.
abstract: Data mining methods have been used to identify 356 Cyt P450 genes and 99 related pseudogenes in the rice (Oryza sativa) genome using sequence information available from both the indica and japonica strains. Because neither of these genomes is completely available, some genes have been identified in only one strain, and 28 genes remain incomplete. Comparison of these rice genes with the 246 P450 genes and 26 pseudogenes in the Arabidopsis genome has indicated that most of the known plant P450 families existed before the monocot-dicot divergence that occurred approximately 200 million years ago. Comparative analysis of P450s in the Pinus expressed sequence tag collections has identified P450 families that predated the separation of gymnosperms and flowering plants. Complete mapping of all available plant P450s onto the Deep Green consensus plant phylogeny highlights certain lineage-specific families maintained (CYP80 in Ranunculales) and lineage-specific families lost (CYP92 in Arabidopsis) in the course of evolution.
authors.affiliation: Department of Molecular Sciences and Center of Excellence in Genomics and Bioinformatics, University of Tennessee, Memphis, Tennessee 38163, USA. dnelson@utmem.edu
authors.forename: David R
authors.initials: DR
authors.lastname: Nelson
authors.forename: Mary A
authors.initials: MA
authors.lastname: Schuler
authors.forename: Suzanne M
authors.initials: SM
authors.lastname: Paquette
authors.forename: Daniele
authors.initials: D
authors.lastname: Werck-Reichhart
authors.forename: Søren
authors.initials: S
authors.lastname: Bak
mesh_terms: D017360:Arabidopsis / Q000235:genetics*; D003577:Cytochrome P-450 Enzyme System / Q000235:genetics* / Q000378:metabolism; D019143:Evolution, Molecular; D018745:Genome, Plant; D012275:Oryza / Q000235:genetics*; D010802:Phylogeny; D011544:Pseudogenes / Q000235:genetics*; D009626:Terminology as Topic
chemical_list: D003577:Cytochrome P-450 Enzyme System