title: RNA editing of mitochondrial functional genes atp6 and cox2 in maize (Zea mays L.).
abstract: RNA editing of two mitochondrial or organs genes, atp6 and cox2, in different tissues were analyzed using homonucleic but alloplasmic, and homoplasmic but heteronucleic maize (zea mays L.) as experimental materials. A total of 18 and 26 editing sites for atp6 conservative region transcript were identified by direct and clone sequencing, respectively. By direct sequencing 23 and 22 editing sites for cox2 transcript were identified in 48-2 and Huangzaosi nuclear backgrounds, respectively. From the direct sequencing results, the occurrence rates of different transcripts generally increase in sterile lines. It is concluded that RNA editing of atp6 and cox2 might have a certain relationship with maize CMS.
authors: Maize Research Institute of Sichuan Agricultural University/Key Laboratory of Crop Genetic Resource and Improvement, Ministry of Education, Ya'an 625014, Sichuan, China.
authors: Jing
authors: J
authors: Wang
authors: Mo Ju
authors: MJ
authors: Cao
authors: Guang Tang
authors: GT
authors: Pan
authors: Yan Li
authors: YL
authors: Lu
authors: Ting Zhao
authors: TZ
authors: Rong
mesh_terms: D001483:Base Sequence; D051546:Cyclooxygenase 2 / Q000235:genetics*; D050259:Genes, Mitochondrial; D017343:Genes, Plant; D025261:Mitochondrial Proton-Translocating ATPases / Q000235:genetics*; D008969:Molecular Sequence Data; D017393:RNA Editing; D017422:Sequence Analysis, DNA; D003313:Zea mays / Q000235:genetics*
chemical_list: D051546:Cyclooxygenase 2; D025261:Mitochondrial Proton-Translocating ATPases