title: Reprogramming of the activity of the activator/dissociation transposon family during plant regeneration in rice.
abstract: Many aspects of epigenetic phenomena have been elucidated via studies of transposable elements. An active transposable element frequently loses its ability to mobilize and goes into an inactive state during development. In this study, we describe the cyclic activity of a maize transposable element dissociation (Ds) in rice. In rice genome, Ds undergoes the spontaneous loss of mobility. However, an inactive state of Ds can be changed into an active state during tissue culture. The recovery of mobility accompanies not only changes in the methylation patterns of the terminal region of Ds, but also alteration in the steady state level of the activator (Ac) mRNA that is expressed by a constitutive CaMV 35S promoter. Furthermore, the Ds-reactivation process is not random, but stage-specific during plantlet regeneration. Our findings have expanded previous observations on Ac reactivation in the tissue culture of maize.
authors.affiliation: Division of Applied Life Science, Gyeongsang National University, Jinju, Korea.
authors.forename: Chul Min
authors.initials: CM
authors.lastname: Ki
authors.forename: Byoung Il
authors.initials: BI
authors.lastname: Je
authors.forename: Hai Long
authors.initials: HL
authors.lastname: Piao
authors.forename: Soon Ju
authors.initials: SJ
authors.lastname: Par
authors.forename: Min Jung
authors.initials: MJ
authors.lastname: Kim
authors.forename: Sung Han
authors.initials: SH
authors.lastname: Park
authors.forename: Jin Young
authors.initials: JY
authors.lastname: Park
authors.forename: Su Hyun
authors.initials: SH
authors.lastname: Park
authors.forename: Eun Kyeong
authors.initials: EK
authors.lastname: Lee
authors.forename: Nam Soo
authors.initials: NS
authors.lastname: Chon
authors.forename: Yong Jae
authors.initials: YJ
authors.lastname: Won
authors.forename: Gi Hwan
authors.initials: GH
authors.lastname: Lee
authors.forename: Min Hee
authors.initials: MH
authors.lastname: Nam
authors.forename: Doh Won
authors.initials: DW
authors.lastname: Yun
authors.forename: Myung Chul
authors.initials: MC
authors.lastname: Lee
authors.forename: Young Soon
authors.initials: YS
authors.lastname: Cha
authors.forename: Ho
authors.initials: H
authors.lastname: Le Kon
authors.forename: Moo Young
authors.initials: MY
authors.lastname: Eun
authors.forename: Chang-Deok
authors.initials: CD
authors.lastname: Han
mesh_terms: D004251:DNA Transposable Elements / Q000502:physiology; D018506:Gene Expression Regulation, Plant / Q000502:physiology; D012275:Oryza / Q000235:genetics* / Q000254:growth & development*; D003313:Zea mays / Q000235:genetics
chemical_list: D004251:DNA Transposable Elements