title: Isolation and characterization of conserved non-coding sequences among rice (Oryza sativa L.) paralogous regions.
abstract: Segmental duplication is particularly frequent within plant genomes and the ability of the original single-copy gene to gain a new function for the change of regulatory elements is one of the prominent consequences of duplication. Thus, it is important to study the pattern of conserved non-coding sequence (CNS) between paralogous genes. We report the result of a survey of CNSs among paralogous regions in rice (Oryza sativa L.), as well as the comparison of CNS dataset between rice and Arabidopsis thaliana. Some common properties, such as the change of A + T content near the CNS boundaries and CNS are enriched in regulatory genes, were observed. However, the content of CNSs differs between rice and Arabidopsis, and it is interesting that the rice metabolic network includes both CNS-poor and CNS-rich genes, which indicated a fine-tuned metabolic network presents in rice.
authors.affiliation: State Key Laboratory of Plant Physiology and Biochemistry, Department of Plant Genetics and Breeding, China Agricultural University, 100193, Beijing, China.
authors.forename: Xianran
authors.initials: X
authors.lastname: Li
authors.forename: Lubin
authors.initials: L
authors.lastname: Tan
authors.forename: Liguo
authors.initials: L
authors.lastname: Wang
authors.forename: Songnian
authors.initials: S
authors.lastname: Hu
authors.forename: Chuanqing
authors.initials: C
authors.lastname: Sun
mesh_terms: D017360:Arabidopsis / Q000235:genetics / Q000378:metabolism; D001482:Base Composition; D017124:Conserved Sequence; D017343:Genes, Plant; D018745:Genome, Plant; D053858:Metabolic Networks and Pathways / Q000235:genetics; D012275:Oryza / Q000235:genetics* / Q000378:metabolism; D018749:RNA, Plant / Q000235:genetics; D022661:RNA, Untranslated / Q000235:genetics; D013045:Species Specificity
chemical_list: D018749:RNA, Plant; D022661:RNA, Untranslated