title: PtrKOR1 is required for secondary cell wall cellulose biosynthesis in Populus.
abstract: KORRIGAN (KOR), encoding an endo-1,4-β-glucanase, plays a critical role in the cellulose synthesis of plant cell wall formation. KOR sequence orthologs are duplicated in the Populus genome relative to Arabidopsis. This study reports an expression analysis of the KOR genes in Populus. The five PtrKOR genes displayed different expression patterns, suggesting that they play roles in different developmental processes. Through RNAi suppression, results demonstrated that PtrKOR1 is required for secondary cell wall cellulose formation in Populus. Together, the results suggest that the PtrKOR genes may play distinct roles in association with cell wall formation in different tissues.
authors.affiliation: National Key Laboratory of Plant Molecular Genetics/CAS Key Laboratory of Synthetic Biology, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 300 Fenglin Road, Shanghai 200032, China.
authors.forename: Liangliang
authors.initials: L
authors.lastname: Yu
authors.affiliation: National Key Laboratory of Plant Molecular Genetics/CAS Key Laboratory of Synthetic Biology, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 300 Fenglin Road, Shanghai 200032, China Present address: China Eucalyptus Research Center, 30 Middle Renmin Ave, Zhanjiang, Guangdong 524022, China.
authors.forename: Hongpeng
authors.initials: H
authors.lastname: Chen
authors.affiliation: National Key Laboratory of Plant Molecular Genetics/CAS Key Laboratory of Synthetic Biology, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 300 Fenglin Road, Shanghai 200032, China.
authors.forename: Jiayan
authors.initials: J
authors.lastname: Sun
authors.affiliation: National Key Laboratory of Plant Molecular Genetics/CAS Key Laboratory of Synthetic Biology, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 300 Fenglin Road, Shanghai 200032, China lgli@sibs.ac.cn.
authors.forename: Laigeng
authors.initials: L
authors.lastname: Li
mesh_terms: D000595:Amino Acid Sequence; D001483:Base Sequence; D050260:Carbohydrate Metabolism; D002473:Cell Wall / Q000378:metabolism; D002480:Cellulase / Q000235:genetics* / Q000378:metabolism; D002482:Cellulose / Q000378:metabolism*; D020440:Gene Duplication; D018506:Gene Expression Regulation, Plant; D008969:Molecular Sequence Data; D009928:Organ Specificity; D010802:Phylogeny; D018515:Plant Leaves / Q000166:cytology / Q000201:enzymology / Q000235:genetics; D010940:Plant Proteins / Q000235:genetics / Q000378:metabolism; D018547:Plant Stems / Q000166:cytology / Q000201:enzymology / Q000235:genetics; D030821:Plants, Genetically Modified; D032107:Populus / Q000166:cytology / Q000201:enzymology* / Q000235:genetics; D034622:RNA Interference; D016415:Sequence Alignment; D017422:Sequence Analysis, DNA
chemical_list: D010940:Plant Proteins; D002482:Cellulose; D002480:Cellulase
keywords: KORRIGAN; cellulose synthesis; gene duplication