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Guo B, Zheng ZL, Gao K, Ma JL, Wang JY, Yang F, An XM. Characterization of the complete chloroplast genome of Calophaca sinica Rehd. Mitochondrial DNA B Resour 2020; 5:614-615. [PMID: 33366671 PMCID: PMC7748687 DOI: 10.1080/23802359.2019.1710608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
Affiliation(s)
- Bin Guo
- National Engineering Laboratory for Tree Breeding, Beijing Forestry University, Beijing, People’s Republic of China
- Shanxi Academy of Forest Sciences, Taiyuan, People’s Republic of China
| | - Zhi-Li Zheng
- Shanxi Academy of Forest Sciences, Taiyuan, People’s Republic of China
| | - Kai Gao
- National Engineering Laboratory for Tree Breeding, Beijing Forestry University, Beijing, People’s Republic of China
| | - Jia-Lin Ma
- Shanxi Academy of Forest Sciences, Taiyuan, People’s Republic of China
| | - Jian-Yi Wang
- Shanxi Academy of Forest Sciences, Taiyuan, People’s Republic of China
| | - Fei Yang
- Shanxi Academy of Forest Sciences, Taiyuan, People’s Republic of China
| | - Xin-Min An
- National Engineering Laboratory for Tree Breeding, Beijing Forestry University, Beijing, People’s Republic of China
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Chen Z, Wang J, Ye MX, Li H, Ji LX, Li Y, Cui DQ, Liu JM, An XM. A Novel Moderate Constitutive Promoter Derived from Poplar (Populus tomentosa Carrière). Int J Mol Sci 2013; 14:6187-204. [PMID: 23507754 PMCID: PMC3634493 DOI: 10.3390/ijms14036187] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2012] [Revised: 02/05/2013] [Accepted: 03/06/2013] [Indexed: 01/07/2023] Open
Abstract
A novel sequence that functions as a promoter element for moderate constitutive expression of transgenes, designated as the PtMCP promoter, was isolated from the woody perennial Populus tomentosa. The PtMCP promoter was fused to the GUS reporter gene to characterize its expression pattern in different species. In stable Arabidopsis transformants, transcripts of the GUS reporter gene could be detected by RT-PCR in the root, stem, leaf, flower and silique. Further histochemical and fluorometric GUS activity assays demonstrated that the promoter could direct transgene expression in all tissues and organs, including roots, stems, rosette leaves, cauline leaves and flowers of seedlings and maturing plants. Its constitutive expression pattern was similar to that of the CaMV35S promoter, but the level of GUS activity was significantly lower than in CaMV35S promoter::GUS plants. We also characterized the promoter through transient expression in transgenic tobacco and observed similar expression patterns. Histochemical GUS staining and quantitative analysis detected GUS activity in all tissues and organs of tobacco, including roots, stems, leaves, flower buds and flowers, but GUS activity in PtMCP promoter::GUS plants was significantly lower than in CaMV35S promoter::GUS plants. Our results suggested that the PtMCP promoter from poplar is a constitutive promoter with moderate activity and that its function is presumably conserved in different species. Therefore, the PtMCP promoter may provide a practical choice to direct moderate level constitutive expression of transgenes and could be a valuable new tool in plant genetic engineering.
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Affiliation(s)
- Zhong Chen
- National Engineering Laboratory for Tree Breeding (NDRC), Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants (MOE), the Tree and Ornamental Plant Breeding and Biotechnology Laboratory (SFA), College of Biological Science and Biotechnology, Beijing Forestry University, Qinghua Eastern Road No.35, Haidian District, Beijing 100083, China; E-Mails: (Z.C.); (J.W.); (M.-X.Y.); (H.L.); (L.-X.J.); (Y.L.); (D.-Q.C.); (J.-M.L.)
| | - Jia Wang
- National Engineering Laboratory for Tree Breeding (NDRC), Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants (MOE), the Tree and Ornamental Plant Breeding and Biotechnology Laboratory (SFA), College of Biological Science and Biotechnology, Beijing Forestry University, Qinghua Eastern Road No.35, Haidian District, Beijing 100083, China; E-Mails: (Z.C.); (J.W.); (M.-X.Y.); (H.L.); (L.-X.J.); (Y.L.); (D.-Q.C.); (J.-M.L.)
| | - Mei-Xia Ye
- National Engineering Laboratory for Tree Breeding (NDRC), Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants (MOE), the Tree and Ornamental Plant Breeding and Biotechnology Laboratory (SFA), College of Biological Science and Biotechnology, Beijing Forestry University, Qinghua Eastern Road No.35, Haidian District, Beijing 100083, China; E-Mails: (Z.C.); (J.W.); (M.-X.Y.); (H.L.); (L.-X.J.); (Y.L.); (D.-Q.C.); (J.-M.L.)
| | - Hao Li
- National Engineering Laboratory for Tree Breeding (NDRC), Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants (MOE), the Tree and Ornamental Plant Breeding and Biotechnology Laboratory (SFA), College of Biological Science and Biotechnology, Beijing Forestry University, Qinghua Eastern Road No.35, Haidian District, Beijing 100083, China; E-Mails: (Z.C.); (J.W.); (M.-X.Y.); (H.L.); (L.-X.J.); (Y.L.); (D.-Q.C.); (J.-M.L.)
| | - Le-Xiang Ji
- National Engineering Laboratory for Tree Breeding (NDRC), Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants (MOE), the Tree and Ornamental Plant Breeding and Biotechnology Laboratory (SFA), College of Biological Science and Biotechnology, Beijing Forestry University, Qinghua Eastern Road No.35, Haidian District, Beijing 100083, China; E-Mails: (Z.C.); (J.W.); (M.-X.Y.); (H.L.); (L.-X.J.); (Y.L.); (D.-Q.C.); (J.-M.L.)
| | - Ying Li
- National Engineering Laboratory for Tree Breeding (NDRC), Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants (MOE), the Tree and Ornamental Plant Breeding and Biotechnology Laboratory (SFA), College of Biological Science and Biotechnology, Beijing Forestry University, Qinghua Eastern Road No.35, Haidian District, Beijing 100083, China; E-Mails: (Z.C.); (J.W.); (M.-X.Y.); (H.L.); (L.-X.J.); (Y.L.); (D.-Q.C.); (J.-M.L.)
| | - Dong-Qing Cui
- National Engineering Laboratory for Tree Breeding (NDRC), Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants (MOE), the Tree and Ornamental Plant Breeding and Biotechnology Laboratory (SFA), College of Biological Science and Biotechnology, Beijing Forestry University, Qinghua Eastern Road No.35, Haidian District, Beijing 100083, China; E-Mails: (Z.C.); (J.W.); (M.-X.Y.); (H.L.); (L.-X.J.); (Y.L.); (D.-Q.C.); (J.-M.L.)
| | - Jun-Mei Liu
- National Engineering Laboratory for Tree Breeding (NDRC), Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants (MOE), the Tree and Ornamental Plant Breeding and Biotechnology Laboratory (SFA), College of Biological Science and Biotechnology, Beijing Forestry University, Qinghua Eastern Road No.35, Haidian District, Beijing 100083, China; E-Mails: (Z.C.); (J.W.); (M.-X.Y.); (H.L.); (L.-X.J.); (Y.L.); (D.-Q.C.); (J.-M.L.)
| | - Xin-Min An
- National Engineering Laboratory for Tree Breeding (NDRC), Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants (MOE), the Tree and Ornamental Plant Breeding and Biotechnology Laboratory (SFA), College of Biological Science and Biotechnology, Beijing Forestry University, Qinghua Eastern Road No.35, Haidian District, Beijing 100083, China; E-Mails: (Z.C.); (J.W.); (M.-X.Y.); (H.L.); (L.-X.J.); (Y.L.); (D.-Q.C.); (J.-M.L.)
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An XM, Wang DM, Wang ZL, Li B, Bo WH, Cao GL, Zhang ZY. Isolation of a LEAFY homolog from Populus tomentosa: expression of PtLFY in P. tomentosa floral buds and PtLFY-IR-mediated gene silencing in tobacco (Nicotiana tabacum). Plant Cell Rep 2011; 30:89-100. [PMID: 21104255 DOI: 10.1007/s00299-010-0947-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2010] [Revised: 10/24/2010] [Accepted: 10/28/2010] [Indexed: 05/30/2023]
Abstract
To understand the genetic and molecular mechanisms underlying floral development in Populus tomentosa, we isolated PtLFY, a LEAFY homolog, from a P. tomentosa floral bud cDNA library. DNA gel blot analysis showed that PtLFY is present as a single copy in the genomes of both male and female individuals of P. tomentosa. The genomic copy is composed of three exons and two introns. Relative expression levels of PtLFY in tissues of P. tomentosa were estimated by RT-PCR; our results revealed that PtLFY mRNA is highly abundant in roots and both male and female floral buds. A low level of gene expression was detected in stems and vegetative buds, and no PtLFY-specific transcripts were detected in leaves. PtLFY expression patterns were analyzed during the development of both male and female floral buds in P. tomentosa via real-time quantitative RT-PCR. Continuous, stable and high-level expression of PtLFY-specific mRNA was detected in both male and female floral buds from September 13th to February 25th, but the level of PtLFY transcripts detected in male floral buds was considerably higher than in female floral buds. Our results also showed an inverted repeat PtLFY fragment (PtLFY-IR) effectively blocked flowering of transgenic tobacco plants, and that this effect appeared to be due to post-transcriptional silencing of the endogenous tobacco LFY homologs NFL1 and NFL2.
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Affiliation(s)
- Xin-Min An
- National Engineering Laboratory for Tree Breeding, Beijing Forestry University, Beijing 100083, People's Republic of China
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Tao J, Zhang SL, Xu CJ, An XM, Zhang LC. [Gene and gene engineering of carotenoid biosynthesis]. Sheng Wu Gong Cheng Xue Bao 2002; 18:276-81. [PMID: 12192856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
Abstract
Carotenoids have a range of diverse biological functions and actions, especially playing an important role in human health with provitamin A activity, anti-cancer activity, enhancing immune ability and so on. Human body can't synthesis carotenoids by itself and must absorb them from outside. However, carotenoid contents in many plant are very low, and many kinds of carotenoid are difficult to produce by chemical ways. With the elucidation of carotenoid biosynthetic pathway and cloning genes of relative enzymes from microorganisms and higher plants, it is possible to regulate carotenoid biosynthesis via genetic engineering. This article reviews gene cloning of carotenoid biosynthetic enzymes in microorganisms and higher plants, and advances in the studies of carotenoid production in heterologous microorganisms and crop plants using gene-manipulated carotenoid biosynthesis.
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Affiliation(s)
- Jun Tao
- Laboratory of Fruit Molecular Biology, Zhejiang University, Hangzhou 310029.
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