Salt tolerance conferred by over-expression ofOsNHX1 gene in Poplar 84K

Wang, Shuyao; Chen, Qijun; Wang, Wenlong; Wang, Xuechen; Lu, Mengzhu

doi:10.1007/bf02897531

Cited by 10 publications

(6 citation statements)

References 10 publications

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“…The density of bound charges is proportional to the applied stress. After that, they experimentally confirmed the inverse piezoelectric effect [1]. That is, when an electric field is applied to the crystal in a certain direction, the center of gravity of positive and negative charges in the medium is displaced by the electric field, and deformation will occur, which is proportional to the strength of the electric field.…”

Section: Introductionmentioning

confidence: 83%

Effective design of advanced flexible piezoelectric materials

Zhou

2023

ACE

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Piezoelectric ceramics are relatively common materials that can convert mechanical energy and electrical energy into each other. They are widely used in our life in electroacoustic devices, communication, navigation, precision measurement and ultrasonic energy conversion. Its texture is hard and brittle, its processability is not very good, and its use is limited. If piezoelectric ceramics are made into flexible piezoelectric composites by compounding with flexible matrices to improve mechanical properties, they can be applied to wearable and flexible devices. This paper briefly introduces the basic principle of the piezoelectric effect, introduces the preparation methods of three typical flexible piezoelectric composites and their dielectric, piezoelectric and mechanical properties, introduces the recent research work and the latest scientific research achievements of relevant teams, summarizes the research progress of flexible piezoelectric materials, and provides ideas for finding flexible piezoelectric composites that have good dielectric, piezoelectric and mechanical properties.

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Section: Introductionmentioning

confidence: 83%

Effective design of advanced flexible piezoelectric materials

Zhou

2023

ACE

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“…In 1984, the poplar clone “84K” ( P. alba × P. tremula var. glandulosa ) was first introduced to China from South Korea and became widely planted and used due to its fast growth rates and high wood quality ( Wang et al 2005 ). In addition, “84K” has become an important model system for Populus studies due to its ease of vegetative propagation and tissue culture, suitability for efficient genetic transformation, and wide adaptation to different environments ( Zhang et al 2011 ; Ke et al 2017 ; Yoon et al 2018 ).…”

Section: Introductionmentioning

confidence: 99%

High-quality genome assembly enables prediction of allele-specific gene expression in hybrid poplar

Shi,

Jia,

Bao

et al. 2024

Plant Physiology

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Poplar (Populus) is a well-established model system for tree genomics and molecular breeding, and hybrid poplar is widely used in forest plantations. However, distinguishing its diploid homologous chromosomes is difficult, complicating advanced functional studies on specific alleles. In this study, we applied a trio-binning design and PacBio High-Fidelity long-read sequencing to obtain haplotype-phased telomere-to-telomere genome assemblies for the two parents of the well-studied F1 hybrid “84K” (Populus alba × P. tremula var. glandulosa). Almost all chromosomes, including the telomeres and centromeres, were completely assembled for each haplotype subgenome apart from two small gaps on one chromosome. By incorporating information from these haplotype assemblies and extensive RNA-seq data, we analyzed gene expression patterns between the two subgenomes and alleles. Transcription bias at the subgenome level was not uncovered, but extensive expression differences were detected between alleles. We developed machine-learning (ML) models to predict allele-specific expression (ASE) with high accuracy and identified underlying genome features most highly influencing ASE. One of our models with 15 predictor variables achieved 77% accuracy on the training set and 74% accuracy on the testing set. ML models identified gene body CHG methylation, sequence divergence, and transposon occupancy both upstream and downstream of alleles as important factors for ASE. Our haplotype-phased genome assemblies and ML strategy highlight an avenue for functional studies in Populus and provide additional tools for studying ASE and heterosis in hybrids.

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“…With the completion of the whole genome sequencing of Populus trichocarpa and other poplar genotypes, poplar has become a model woody plant for studying the molecular biology of woody plants [ 9 , 10 ]. The establishment of a mature regeneration system is the basis for plant transformation and gene function study [ 11 , 12 , 13 , 14 , 15 ]. At present, plant tissue culture technology is becoming more and more mature, and many poplar genotypes have established mature regeneration systems [ 16 , 17 , 18 ].…”

Section: Introductionmentioning

confidence: 99%

Optimization of High-Efficiency Tissue Culture Regeneration Systems in Gray Poplar

Li,

Wang,

Guan

et al. 2023

Life

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A series of tissue culture regeneration protocols were conducted on gray poplar (P. tremula × P. alba) to select the most efficient callus induction medium, adventitious shoot differentiation medium, shoot elongation medium and rooting medium, which laid the foundation for the optimization of genetic transformation technology for gray poplar. The results showed that the Woody Plant Medium (WPM) supplemented with 0.10 mg L−1 kinetin (KT) and 1.00 mg L−1 2,4-dichlorophenoxyacetic acid (2,4-D) was the most suitable medium for callus induction. The callus induction rates of different tissues were greater than 85.7%. The optimal adventitious shoot differentiation medium was the WPM supplemented with 0.02 mg L−1 thidiazuron (TDZ), and the adventitious shoot differentiation rates of young tissues were 22.2–41.9%. The optimal direct differentiation medium was the Murashige and Skoog (MS) medium supplemented with 0.20 mg L−1 6-benzylaminopurine (6-BA), 0.10 mg L−1 indole butyric acid (IBA) and 0.001 mg L−1 TDZ, and the differentiation rate of adventitious shoots was greater than 94%. The best shoot elongation medium for adventitious shoots was the MS medium with 0.10 mg L−1 naphthylacetic acid (NAA). After 45 days of cultivation in the MS medium with 0.10 mg L−1 NAA, the average plant height was 1.8 cm, and the average number of elongated adventitious shoots was 11 per explant. The 1/2 MS medium with 0.10 mg L−1 NAA showed the best performance for rooting, and later, shoot growth. The direct shoot induction pathway can induce adventitious shoots much faster than the indirect adventitious shoot induction pathway can, and the time cost via the direct adventitious shoot induction pathway can be shortened by 2–6 weeks compared to that of the indirect shoot induction pathway.

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Salt tolerance conferred by over-expression ofOsNHX1 gene in Poplar 84K

Cited by 10 publications

References 10 publications

Effective design of advanced flexible piezoelectric materials

Effective design of advanced flexible piezoelectric materials

High-quality genome assembly enables prediction of allele-specific gene expression in hybrid poplar

Optimization of High-Efficiency Tissue Culture Regeneration Systems in Gray Poplar

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