title: Expression patterns of ERF genes underlying abiotic stresses in di-haploid Populus simonii × P. nigra.
abstract: 176 ERF genes from Populus were identified by bioinformatics analysis, 13 of these in di-haploid Populus simonii × P. nigra were investigate by real-time RT-PCR, the results demonstrated that 13 ERF genes were highly responsive to salt stress, drought stress and ABA treatment, and all were expressed in root, stem, and leaf tissues, whereas their expression levels were markedly different in the various tissues. In roots, PthERF99, 110, 119, and 168 were primarily downregulated under drought and ABA treatment but were specifically upregulated under high salt condition. Interestingly, in poplar stems, all ERF genes showed the similar trends in expression in response to NaCl stress, drought stress, and ABA treatment, indicating that they may not play either specific or unique roles in stems in abiotic stress responses. In poplar leaves, PthERF168 was highly induced by ABA treatment, but was suppressed by high salinity and drought stresses, implying that PthERF168 participated in the ABA signaling pathway. The results of this study indicated that ERF genes could play essential but distinct roles in various plant tissues in response to different environment cues and hormonal treatment.
authors.affiliation: State Key Laboratory of Forest Genetics and Tree Breeding, Northeast Forestry University, 51 Hexing Road, Harbin 150040, China.
authors.forename: Shengji
authors.identifier: 0000-0001-9914-7800
authors.initials: S
authors.lastname: Wang
authors.affiliation: State Key Laboratory of Forest Genetics and Tree Breeding, Northeast Forestry University, 51 Hexing Road, Harbin 150040, China.
authors.forename: Wenjing
authors.initials: W
authors.lastname: Yao
authors.affiliation: State Key Laboratory of Forest Genetics and Tree Breeding, Northeast Forestry University, 51 Hexing Road, Harbin 150040, China ; Biotechnology Research Center, School of Forest Resources and Environmental Science, Michigan Technological University, Houghton, MI 49931, USA.
authors.forename: Hairong
authors.identifier: 0000-0002-3551-4998
authors.initials: H
authors.lastname: Wei
authors.affiliation: State Key Laboratory of Forest Genetics and Tree Breeding, Northeast Forestry University, 51 Hexing Road, Harbin 150040, China.
authors.forename: Tingbo
authors.initials: T
authors.lastname: Jiang
authors.affiliation: State Key Laboratory of Forest Genetics and Tree Breeding, Northeast Forestry University, 51 Hexing Road, Harbin 150040, China.
authors.forename: Boru
authors.initials: B
authors.lastname: Zhou
mesh_terms: D000040:Abscisic Acid / Q000494:pharmacology; D055864:Droughts; D018506:Gene Expression Regulation, Plant; D018515:Plant Leaves / Q000187:drug effects / Q000235:genetics / Q000378:metabolism; D032107:Populus / Q000145:classification / Q000187:drug effects / Q000235:genetics / Q000378:metabolism*; D015398:Signal Transduction / Q000187:drug effects
chemical_list: D000040:Abscisic Acid
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