Article
Plant Sciences
Kaiyan Lu, Xueshun Wang, Huiying Gong, Dengcheng Yang, Meixia Ye, Qing Fang, Xiao-Yu Zhang, Rongling Wu
Summary: This study constructs an analytical mapping framework to explore the genetic mechanism regulating the interaction of two complex traits. The results show that our model is applicable to datasets of two dimensions in plant architecture, helping to understand the decisions that plants make in a specific environment from the genetic perspective.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Genetics & Heredity
Jianhao Sun, Jindong Xu, Wenrui Qu, Xiaoli Han, Chen Qiu, Zhongshuai Gai, Juntuan Zhai, Rui Qin, Hong Liu, Zhihua Wu, Zhijun Li
Summary: This study aimed to identify, characterize, and analyze the expression profiles of R2R3-MYB genes in Populus euphratica (P. euphratica) during seed germination in response to drought stress and abscisic acid (ABA) treatment. Comparative genomics analysis identified 174 PeR2R3-MYB genes, many of which underwent whole genome duplication or segment duplication events. The expression data supported the hypothesis that PeR2R3-MYBs are involved in drought response through the ABA signaling pathway, especially those with MYB binding sites and/or tandem duplication. This study provides valuable insights for understanding the functions of R2R3-MYBs in P. euphratica and lays the foundation for breeding strategies to enhance drought tolerance.
Article
Plant Sciences
Yaru Fu, Feiran Li, Shuaicheng Mu, Libo Jiang, Meixia Ye, Rongling Wu
Summary: Heterophylly, or leaf morphological changes along plant shoot axes, is an important indicator of plant eco-adaptation to heterogeneous microenvironments. Despite extensive studies on the genetic control of leaf shape, the genetic architecture of heterophylly remains elusive. By conducting a leaf shape mapping experiment and functional mapping-assisted genome-wide association study, significant quantitative trait loci (QTLs) for heterophylly and related candidate genes were identified, with functions related to stress resistance, auxin, shape, and disease resistance. The findings suggest a potential link between heterophylly and saline tolerance in P. euphratica, providing new avenues for research on saline resistance-related genetic mechanisms.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Plant Sciences
Fuling Lv, Qinghua Shan, Kun Qiao, Haizhen Zhang, Aimin Zhou
Summary: In this study, a gene called PePCR2 was isolated from Populus euphratica, which showed increased Cd resistance when overexpressed in poplar. The PePCR2 gene acts as a Cd extrusion pump and/or regulates other Cd2+ transporters to reduce Cd toxicity. These findings provide theoretical basis for reducing Cd toxicity and protecting food safety.
PLANT CELL REPORTS
(2023)
Article
Biochemistry & Molecular Biology
Peng Jiang, Nan Ma, Fengshuo Sun, Meixia Ye, Rongling Wu
Summary: The study used functional mapping models to identify QTLs regulating gravitropic and phototropic growth in a desert tree, revealing genetic mechanisms and candidate genes involved in the control of these processes.
FRONTIERS IN BIOSCIENCE-LANDMARK
(2021)
Article
Plant Sciences
Sibei Li, Bhaswati Devi, Gamalat Allam, Armaan Bhullar, Jhadeswar Murmu, Eryang Li, Shelley R. Hepworth
Summary: This study investigates the functional conservation of BOP orthologs in Populus trichocarpa (poplar). The results suggest that PtrBPL1 and PtrBPL2 potentially play a role in the regulation of secondary growth in poplar trees.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Forestry
Yanbo Wan, Qingdong Shi, Yue Dai, Nijat Marhaba, Liping Peng, Lei Peng, Haobo Shi
Summary: The study found that the water uptake characteristics of Populus euphratica and Tamarix chinensis varied at different growth stages, with deeper soil water being the main water source for T. chinensis. Water use efficiency was higher for both species without river water, but T. chinensis showed a greater dependence on groundwater. This highlights the importance of considering vegetation types and growth stages in ecological restoration management to enhance effectiveness of vegetation restoration strategies.
Article
Biochemistry & Molecular Biology
Mei Han, Mingyue Xu, Tao Su, Shizhen Wang, Liangdan Wu, Junhu Feng, Changjun Ding
Summary: Exogenous glutamine (Gln) has been shown to promote growth and photosynthesis in poplar trees, but the molecular mechanism underlying this effect is not well understood. Transcriptome analysis revealed that Gln treatment downregulated ribosomal genes and upregulated starch and sucrose metabolism genes in the shoots, while in the roots, Gln regulated carbon metabolism, glycolysis/gluconeogenesis, and phenylpropanoid biosynthesis. These findings suggest that Gln promotes poplar growth and stress responses by regulating carbon and nitrogen allocation and energy conversion.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Plant Sciences
Wan-Peng Bai, Hu-Jun Li, Shelley R. Hepworth, Hai-Shuang Liu, Lin-Bo Liu, Gai-Ni Wang, Qing Ma, Ai-Ke Bao, Suo-Min Wang
Summary: This study characterized the acclimation of Zygophyllum xanthoxylum to heat using physiological measurements and transcriptome profiling. Moderate high temperature (40℃) enhanced photosynthetic capacity and plant performance, while severe high temperature (45℃) inhibited growth. Up-regulation of genes related to heat shock factors and heat shock proteins likely contribute to thermotolerance in Z. xanthoxylum.
Article
Biochemistry & Molecular Biology
Yaolin Wang, Heng Zhang, Sheng Zhu, Tengfei Shen, Huixin Pan, Meng Xu
Summary: This study performed genomic resequencing on 64 24-year-old hybrid poplar trees and conducted association analyses to uncover the genetic architecture underlying growth and woody traits. A total of 1342 significantly associated SNPs were identified, with 673 located in the regulatory regions of protein-encoding genes. Additionally, a transcriptional regulation network of secondary cell wall biosynthesis was constructed, providing insights into poplar timber formation mechanism and molecular-assisted breeding.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Forestry
Qiaoli Chen, Feng Wang, Danlei Li
Summary: This study investigated the role of R2R3-MYB proteins in the resistance of poplar trees to E4 infection. The results showed that differentially expressed R2R3-MYB genes may play important roles at different stages of poplar-E4 interaction, possibly in coregulation with other transcription factors. Some R2R3-MYB genes were related to defense-related genes and might activate defense responses through flavonoid biosynthesis and IAA or SA signaling pathways.
Article
Multidisciplinary Sciences
Nan Chao, Qi Qi, Shuang Li, Brent Ruan, Xiangning Jiang, Ying Gai
Summary: This study identified ten HCT homologs in the Populus trichocarpa genome and revealed the potential functions of these candidate PoptrHCTs through various analyses, some of which may be related to lignin biosynthesis and others to plant development and cold stress response.
Article
Plant Sciences
Hui-Guang Li, Yanli Yang, Meiying Liu, Yanni Zhu, Hou-Ling Wang, Cong-Hua Feng, Meng-Xue Niu, Chao Liu, Weilun Yin, Xinli Xia
Summary: Heat stress driven by global warming has negatively impacted forest yields and survival. Breeding heat-tolerant tree species has become crucial in response to this issue. PeHSFA2, a gene in Populus euphratica, plays a key role in regulating plant heat stress protection. Overexpressing PeHSFA2 in poplar plants enhances their thermotolerance by regulating the transcription of heat-protective genes. PeHSFA2 shows potential in breeding poplar plants with improved thermotolerance.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2022)
Article
Genetics & Heredity
Yao Chen, Xiangge Kong, Le Yang, Mingyue Fu, Sheng Zhang
Summary: This study identified 98 PtWRKY genes in the Populus trichocarpa genome and revealed their multiple functions in phosphorus and nitrogen homeostasis. The constructed gene regulatory network showed that PtWRKY genes played important roles in nitrogen response and regulated the expression of nitrogen-responsive genes. Transcriptome and RT-qPCR results further validated the regulation of PtWRKY genes by nitrogen availability in roots and leaves.
Article
Plant Sciences
Yuxian Fan, Guanghui Lv, Yudong Chen, Yaling Chang, Zhoukang Li
Summary: The study found that using biochar treatment resulted in a higher available phosphorus content in the soil compared to direct cow dung treatment, leading to an increase in phosphorus levels in both aboveground and underground components of P.euphratica seedlings. Additionally, biochar increased the biodiversity of rhizosphere and non-rhizosphere soil bacteria.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Biochemistry & Molecular Biology
Shuang-Shuang Wen, Xiao-Lan Ge, Rui Wang, Hai-Feng Yang, Yu-E. Bai, Ying-Hua Guo, Jin Zhang, Meng-Zhu Lu, Shu-Tang Zhao, Liu-Qiang Wang
Summary: In this study, a callus-based transformation method was developed for efficient generation of transgenic plants in hybrid poplar 84K. The optimized protocol showed high efficiency and reproducibility, with a transformation frequency greater than 50%. The method was also found to maintain its high efficiency even after multiple subcultures, making it a valuable reference for developing effective transformation protocols for other poplar species.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Biochemistry & Molecular Biology
Li Zhang, Wei Guo, Yizeng Lu, Tianhua Zhou, Yilei Wang, Xin Tang, Jin Zhang
Summary: Nine inositol transporter genes were found in Populus trichocarpa, playing crucial roles in plant growth, development, and stress resistance. Tandem and whole-genome duplication events contributed to the expansion of the PtINT gene family. PtINT1b, a vacuolar inositol transporter, was identified as a candidate gene for enhancing salinity tolerance in plants.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Plant Sciences
Jiakai Liao, Ban Deng, Xinyu Cai, Qixin Yang, Bangping Hu, Jiajing Cong, Yuxiang Zhang, Gang Wang, Guiliang Xin, Yuting Li, Li Yang, Daizhen Zhang, Jin Zhang, Bobin Liu
Summary: Seed dormancy and germination are crucial for plant survival and population expansion, but the molecular mechanisms underlying their control are still unclear. This study identified WOX11 as a hub transcription factor regulating seed dormancy in Arabidopsis. WOX11 and its homolog WOX12 are highly expressed during seed dormancy induction and release stages, and are activated by red-light signaling mediated by phytochrome B. These findings provide insights into the regulation and evolutionary adaptation of plants to changes in the light environment.
JOURNAL OF EXPERIMENTAL BOTANY
(2023)
Article
Biochemistry & Molecular Biology
Xin-Wei Zhao, Qiao Wang, Dian Wang, Wei Guo, Meng-Xuan Hu, Ying-Li Liu, Gong-Ke Zhou, Guo-Hua Chai, Shu-Tang Zhao, Meng-Zhu Lu
Summary: Lignin, a major component of plant cell walls, is crucial for plant growth and development and is regulated by multiple transcription factors. The study demonstrated that the transcription factor PagERF81 negatively regulates lignin biosynthesis, as mutant lines with decreased PagERF81 expression had increased lignin content, while overexpression of PagERF81 reduced lignin. This research provides insights into the regulation of lignin biosynthesis and offers a molecular tool for engineering wood with high lignin content, which has implications for the lignin-related chemical industry and carbon sequestration.
JOURNAL OF INTEGRATIVE PLANT BIOLOGY
(2023)
Article
Plant Sciences
Degao Liu, Dan Tang, Meng Xie, Jin Zhang, Longmei Zhai, Jiangping Mao, Chao Luo, Anna Lipzen, Yu Zhang, Emily Savage, Guoliang Yuan, Hao-Bo Guo, Dimiru Tadesse, Rongbin Hu, Sara Jawdy, Hua Cheng, Linling Li, Huseyin Yer, Miranda M. Clark, Huayu Sun, Jiyuan Shi, Roshani Budhathoki, Rahul Kumar, Troy Kamuda, Yanjun Li, Christa Pennacchio, Kerrie Barry, Jeremy Schmutz, Rajiv Berry, Wellington Muchero, Jin-Gui Chen, Yi Li, Gerald A. Tuskan, Xiaohan Yang
Summary: Agave REVEILLE1 regulates bud dormancy and bud break in Populus by repressing dormancy-related genes and up-regulating bud break-related genes. Heterologous expression of the AaRVE1 gene delays bud dormancy and accelerates bud break in poplar, leading to an increase in biomass yield. AaRVE1 functions as a transcriptional repressor and regulates the activity of the DRM1 promoter, demonstrating its role as a regulator of bud dormancy and bud break.
Article
Forestry
Wenxiang He, Shufeng Wang, Yangdong Wang, Mengzhu Lu, Xiang Shi
Summary: Rhus chinensis Mill is a potential plant species for phytoremediation of lead (Pb) contamination. This study investigated the pathways and properties of Pb uptake in R. chinensis plants. The results showed that both active and passive processes of Pb uptake and translocation existed in the roots of R. chinensis, and the uptake kinetics followed a concentration-dependent model. Additionally, the study found that the uptake of Pb by the roots of R. chinensis plants was related to calcium ion channels.
Article
Biochemistry & Molecular Biology
Dian Wang, Xiaoning Hao, Li Xu, Mengyan Zhao, Congpeng Wang, Xihao Yu, Yingzhen Kong, Mengzhu Lu, Gongke Zhou, Guohua Chai, Xianfeng Tang
Summary: In this study, the post-transcriptional regulation of BR synthesis during wood formation was explored. It was found that the decay of PdCPD1 mRNA, regulated by PdGRP1 binding to its 3' UTR, is important for fine-tuning BR synthesis. This study provides insights into the molecular mechanisms underlying wood formation and has implications for genetic manipulation of tree biomass.
JOURNAL OF INTEGRATIVE PLANT BIOLOGY
(2023)
Article
Plant Sciences
Jiakai Liao, Ban Deng, Qixin Yang, Yu Li, Yuxiang Zhang, Jiajing Cong, Xiaqin Wang, Markus V. Kohnen, Zhong-Jian Liu, Meng-Zhu Lu, Deshu Lin, Lianfeng Gu, Bobin Liu
Summary: The blue light receptor MpCRY in Marchantia polymorpha plays a role in regulating dormancy by modulating abscisic acid (ABA) signaling under blue light conditions.
Article
Forestry
Wenxiang He, Shufeng Wang, Yangdong Wang, Mengzhu Lu, Xiang Shi
Summary: This study examined changes in the ionome of Rhus chinensis in response to Pb stress, aiming to understand Pb phytotoxicity-related processes and provide theoretical support for improving the efficiency of this plant in remediating heavy metal-polluted soils. The results showed that Pb stress disturbed the ionome of different organs at varying levels, with the stem being the most affected. Biomass had significant positive correlations with N and K, and negative correlations with Pb, Mn, and the C:N ratio.
Article
Plant Sciences
Nathan Bryant, Jin Zhang, Kai Feng, Mengjun Shu, Raphael Ployet, Jin-Gui Chen, Wellington Muchero, Chang Geun Yoo, Timothy J. Tschaplinski, Yunqiao Pu, Arthur J. Ragauskas
Summary: By characterizing a population of 409 naturally varying Populus trichocarpa genotypes, a genome-wide association study identified 756 genes significantly associated with lignin phenotypes, providing insights into the molecular mechanisms of lignin biosynthesis and new targets for genetic improvement in poplar.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Agricultural Engineering
Ermei Chang, Wei Guo, Yunhui Xie, Zeping Jiang, Yao Dong, Zirui Jia, Xiulian Zhao, Jianfeng Liu, Jin Zhang
Summary: Stem cuttings from ancient Platycladus orientalis trees face challenges in root formation, particularly for older trees. Proteomic analysis revealed an up-regulation of certain proteins and down-regulation of others in older tree cuttings, inhibiting adventitious root formation. However, wounding treatment significantly increased root formation in cuttings from younger trees.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Plant Sciences
Tao Yao, Jin Zhang, Timothy B. Yates, Him K. Shrestha, Nancy L. Engle, Raphael Ployet, Cai John, Kai Feng, William Patrick Bewg, Margot S. S. Chen, Haiwei Lu, Scott A. Harding, Zhenzhen Qiao, Sara S. Jawdy, Mengjun Shu, Wenya Yuan, Khadijeh Mozaffari, Anne E. Harman-Ware, Renee M. Happs, Larry M. York, Brad M. Binder, Yuko Yoshinaga, Christopher Daum, Timothy J. Tschaplinski, Paul E. Abraham, Chung-Jui Tsai, Kerrie Barry, Anna Lipzen, Jeremy Schmutz, Gerald A. Tuskan, Jin-Gui Chen, Wellington Muchero
Summary: This study identified PtrXB38 as an expression quantitative trait loci (eQTL) hotspot, with predicted target genes involved in plant hormone responses and root development. Overexpression of PtrXB38 led to increased callusing and the formation of stem-born and base-born adventitious roots in Populus. Omics studies revealed the involvement of genes and proteins controlling auxin transport and signaling in PtrXB38-mediated root formation. Protein-protein interaction assays indicated that PtrXB38 interacts with components of the endocytosis pathway.
Letter
Plant Sciences
Dong Xu, Yingxue Yang, Desheng Gong, Xiaojian Chen, Kangming Jin, Heling Jiang, Wenjuan Yu, Jihong Li, Jin Zhang, Weihua Pan
Article
Forestry
Qiqi Zhang, Meirong Shi, Fang Tang, Nan Su, Feiyang Jin, Yining Pan, Liwei Chu, Mengzhu Lu, Wenbo Shu, Jingcai Li
Summary: RNA-Seq was used to uncover the molecular mechanisms of adventitious root (AR) formation in hybrid poplar clone 84K and AUXIN SIGNALING F-BOX (PagFBL1-OE). Hormone signaling pathways were found to play a crucial role in AR formation.
Article
Plant Sciences
Ermei Chang, Wei Guo, Yao Dong, Zirui Jia, Xiulian Zhao, Zeping Jiang, Li Zhang, Jin Zhang, Jianfeng Liu
Summary: Platycladus orientalis, a common horticultural tree species, has difficulty in rooting for the conservation of germplasm resources. Differentially accumulated metabolites in phenylpropanoid and flavonoid biosynthesis pathways prevent rooting, and gradual lignification of callus is the main reason for failed rooting. Wounding the callus promotes rooting by increasing the contents of wounding-induced metabolites related to cell division and energy provision. This study provides a new solution for rooting of difficult-to-root horticultural and woody plants.
FRONTIERS IN PLANT SCIENCE
(2023)
