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Timing effect of high temperature exposure on the plasticity of internode and plant architecture in maize

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Journal of Integrative Agriculture 2024年第2期23卷 551-565页

作者： Binbin Li Xianmin Chen Tao Deng Xue Zhao Fang Li Bingchao Zhang Xin Wang Si Shen Shunli Zhou College of Agronomy and Biotechnology China Agricultural UniversityBeijing 100193China China Tobacco Hunan Industrial Corporation Changsha 410019China Innovation Center of Agricultural Technology for Lowland Plain of Hebei Wuqiao 061802China

The occurrence of high temperature(HT)in crop production is becoming more frequent and unpredictable with global warming,severely threatening food *** state of an organ’s growth and development is largely determined by the temperature conditions it is exposed to over *** is the main cereal crop,and its stem growth and plant architecture are closely related to lodging resistance,and especially sensitive to ***,systematic research on the timing effect of HT on the sequentially developing internode and stem is currently *** identify the timing effect of HT on the morphology and plasticity of the stem in maize,two hybrids(Zhengdan 958(ZD958),Xianyu 335(XY335))characterized by distinct morphological traits in the stem were exposed to a 7-day HT treatment from the V6 to V17 stages(Vn presents the vegetative stage with n leaves fully expanded)in *** results demonstrated that exposure to HT during V6-V12 accelerated the rapid elongation of *** instance,HT occurring at V7 and V12 specifically promoted the lengths and weights of the 3rd-5th and 9th-11th internodes,***,HT slowed the growth of internodes adjacent to the promoted ***,compared with control,the plant height was significantly increased soon after HT treatment,but the promotion effect became narrower at the subsequent flowering stage,demonstrating a self-adjusting mechanism in the maize plant in response to ***,HT altered the plant architectures,including a rising of the ear position and increase in the ear position ***335 exhibited greater sensitivity in stem development than ZD958 under HT *** findings improve our systematic understanding of the plasticity of internode and plant architecture in response to the timing of HT exposure.

关键词： maize high temperature internode growth plasticity plant architecture

High-throughput volumetric reconstruction for 3D wheat plant architecture studies

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Journal of Innovative Optical Health Sciences 2016年第5期9卷 101-113页

作者： Wei Fang Hui Feng Wanneng Yang Lingfeng Duan Guoxing Chen Lizhong Xiong Qian Liu Britton Chance Center for Biomedical Photonics Wuhan National Laboratory for Optoelectronics Huazhong University of Science and Technology 1037 Luoyu Rd.Wuhan 430074 P.R.China National Key Laboratory of Crop Genetic Improvement and National Center of plant Gene Research Huazhong Agricultural University Wuhan 430070 P.R.China College of Engineering Huazhong Agricultural University Wuhan 430070 P.R.China MOA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River Huazhong Agricultural University Wuhan 430070 P.R.China

For many tller crops,the plant archit ecture(PA),including the plant fresh weight,plant height,number of tllrs,tller angle and stem diameter,sigificantly afects the grain *** this study,we propose a method based on volumetric reconstruction for high-throughput three-dimensional(3D)wheat PA *** proposed methodology involves plant volumetric reconst ruction from multiple images,plant model processing and phenotypic parameter estimation and *** study was performed on 80 Triticum aestium plants,and the results were *** the automated measurements with manual measurements,the mean absolute per-centage error(MAPE)in the plant height and the plant fresh weight was 2.71%(1.08cm with an average plant height of 40.07cm)and 10.06%(1.41g with an average plant fresh weight of 14.06 g),*** root mean square error(RMSE)was 137 cm and 1.79g for the plant height and plant fresh weight,*** correlation cofficients were 0.95 and 0.96 for the plant height and plant fresh weight,***,the proposed methodology,in-cluding plant reconstruction,model processing and trait ext raction,required only approximately 20s on average per plant using parallel computing on a graphics processing unit(GPU),dem-onstrating that the methodology would be valuable for a high-throughput phenotyping platform.

关键词： Three-dimensional volumetric reconstruction plant architecture graphics processing unit high-throughput

The BnTFL1–BnGF14nu–BnFD module regulates flower development and plant architecture in Brassica napus

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The Crop Journal 2023年第6期11卷 1696-1710页

作者： Jianjun Wang Chi Zhang Youpeng Chen Yanan Shao Meifang Liao Qian Hou Weitang Zhang Yang Zhu Yuan Guo Zijin Liu Christian Jung Mingxun Chen State Key Laboratory of Crop Stress Biology for Arid Areas National Yangling Agricultural Biotechnology&Breeding CenterShaanxi Key Laboratory of Crop Heterosisand College of AgronomyNorthwest A&F UniversityYangling 712100ShaanxiChina College of Agriculture and Biotechnology Zhejiang UniversityHangzhou 310058ZhejiangChina plant Breeding Institute University of KielD-24098KielGermany

Flower development and plant architecture determine the efficiency of mechanized harvest and seed yield in Brassica *** TERMINAL FLOWER 1(AtTFL1)is a regulator of flower development in Arabidopsis thaliana,the function and regulatory mechanism of TFL1 orthologs in *** remains *** BnTFL1 paralogs in the genome of the *** inbred line‘K407’showed steadily increasing expression during ***/Cas-induced mutagenesis of up to four BnTFL1 paralogs resulted in early flowering and alteration of plant architecture,whereas seed yield was not altered in BnTFL1 single,double,or triple *** BnTFL1 paralogs,but not ***1,showed an additive and conserved effect on regulating flowering time,total and terminal flower number,and plant ***1 regulates flower development by interacting with *** through the protein ***14nu,resulting in the transcriptional repression of floral integrator and floral meristem identity *** findings about the regulatory network controlling flower development and plant architecture present a promising route to modifying these traits in ***.

关键词： BnTFL1 CRISPR/Cas Flower development plant architecture Seed yield

Breeding maize of ideal plant architecture for high-density planting tolerance through modulating shade avoidance response and beyond

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Journal of Integrative plant Biology 2024年第5期66卷 849-864页

作者： Fereshteh Jafari Baobao Wang Haiyang Wang Junjie Zou Biotechnology Research Institute Chinese Academy of Agricultural SciencesBeijing 100081China Graduate School of Chinese Academy of Agricultural Sciences Beijing 100081China National Nanfan Research Institute CAASSanya 572025China State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources College of Life SciencesSouth China AgriculturalUniversityGuangzhou 510642China

Maize is a major staple crop widely used as food,animal feed,and raw materials in industrial ***-density planting is a major factor contributing to the continuous increase of maize ***,high planting density usually triggers a shade avoidance response and causes increased plant height and ear height,resulting in lodging and yield *** plant height and ear height,more erect leaf angle,reduced tassel branch number,earlier flowering,and strong root system architecture are five key morphological traits required for maize adaption to high-density *** this review,we summarize recent advances in deciphering the genetic and molecular mechanisms of maize involved in response to high-density *** also discuss some strategies for breeding advanced maize cultivars with superior performance under high-density planting conditions.

关键词： flowering time high-density planting leaf angle maize plant architecture plant height/ear height root architecture tasselbranch

TaIAA15 genes regulate plant architecture in wheat

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Journal of Integrative Agriculture 2022年第5期21卷 1243-1252页

作者： LI Fu YAN Dong GAO Li-feng LIU Pan ZHAO Guang-yao JIA Ji-zeng REN Zheng-long Key Laboratory for plant Genetics and Breeding Sichuan Agricultural UniversityYa'an 625014P.R.China National Key Facility for Crop Gene Resources and Genetic Improvement/Institute of Crop Sciences Chinese Academy of Agricultural SciencesBeijing 100081P.R.China

Bread wheat(Triticum aestivum L.)is one of the most important staple crops *** phytohormone auxin plays critical roles in the regulation of plant growth and ***,only a few auxin-related genes have been genetically demonstrated to be involved in the control of plant architecture in wheat thus *** this study,we characterized an auxinrelated gene in wheat,TaIAA15,and found that its ectopic expression in rice decreased the plant height and increased the leaf *** analysis indicated that TaIAA15-3B was associated with plant height(Ph),spike length(SL)and 1000-grain weight(TGW)in wheat,and Hap-II of TaIAA15-3B was the most favored allele and selected by modern breeding in *** study sheds light on the role of auxin signaling on wheat plant architecture as well as yield related traits.

关键词： wheat auxin plant architecture TaIAA15 haplotypes

Rice domestication-associated transcription factor PROSTRATE GROWTH 1 controls plant and panicle architecture by regulating the expression of LAZY 1 and OsGIGANTEA,respectively

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Molecular plant 2023年第9期16卷 1413-1426页

作者： Jun Wang Jing Huang Jinlin Bao Xizhi Li Liang Zhu Jian Jin State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources College of Life Science and TechnologyGuangxi UniversityNanning 530004China National Key Laboratory of plant Molecular Genetics CAS Center for Excellence in Molecular Plant SciencesInstitute of Plant Physiology and EcologyChinese Academy of SciencesShanghai 200031China

plant architecture and panicle architecture are two critical agronomic traits that greatly affect the yield of rice(Oryza sativa).PROSTRATE GROWTH 1(PROG1)encodes a key C2H2-type zinc-finger transcription factor and has pleiotropic effects on the regulation of both plant and panicle architecture,thereby influencing the grain ***,the molecular mechanisms through which PROG1 controls plant and panicle architecture remain *** this study,we showed that PROG1 directly binds the LAZY 1(LA1)promoter and acts as a repressor to inhibit LA1 ***,LA1 acts as a repressor of PROG1 by directly binding to the PROG1 *** two genes play antagonistic roles in shaping plant architecture by regulating both tiller angle and tiller ***,our data showed that PROG1 controls panicle architecture through direct binding to the intragenic regulatory regions of OsGIGANTEA(OsGI)and subsequent activation of its ***,we have identified two crucial targets of PROG1,LA1 and OsGI,shedding light on the molecular mechanisms underlying plant and panicle architecture control by *** study provides valuable insights into the regulation of key domestication-related traits in rice and identifies potential targets for future high-yield rice breeding.

关键词： PROG1 LA1 OsGI plant architecture panicle architecture

Genome-wide association study dissects the genetic architecture of oil biosynthesis and plant architecture in rapeseed(Brassica napus L.)

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Genome-wide association study dissects the genetic architect...

The bHLH transcription factor GhPAS1 mediates BR signaling to regulate plant development and architecture in cotton

2016年全国植物生物学大会

作者： Jihong Hu Biyun Chen Hongge Li Fugui Zhang Guixin Yan Guizhen Gao Jiangwei Qiao Kun Xu Hao Li Tianyao Zhang Lixia Li Xin Xiao Juan Liu Xiaojun Zhang Xiaoming Wu Key Laboratory of Biology and Genetic Improvement of Oil Crops Ministry of AgricultureOil Crop Research InstituteChinese Academy of Agricultural Science

Genome-wide association study(GWAS) is a powerful tool for dissect complex agronomic traits in crops species. Rapeseed is one of the most economically important polypoid oil crops in the world. In this study,we re-sequenced 406 diverse rapeseed accessions to construct a haplotype map of the rapeseed genome. Using an Illumina Hi Seq 4000,a total of 55.6 billion paired-end reads of 150 bp in length were generated,with an average coverage depth of more than 10×for each accession. After mapping against the reference sequences of oilseed cultivar ′Darmor-bzh′,28,006,956 single nucleotide polymorphisms(SNPs) were identified. Using these SNPs,genome-wide association studies were performed for mapping traits. We investigate 36 agronomic traits in four environments and examined the major loci of genes related to oil content,fatty acid biosynthesis,seed weight,plant height and primary branch. Many of the candidate genes for oil content encode enzymes involved in oil metabolism,including two significant associations on A8 and C3 of Brassica napus which were close to the key gene Bna. FAE1 for erucic acid content. Some other QTLs were also identified for plant architecture(plant height and primary branch). Our results provide insights into the genetic basis of oil biosynthesis in oilseed and may facilitate marker-based breeding for oil production and yield.

关键词： Brassica napus GWAS oil content plant architecture yield

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The Crop Journal 2021年第5期9卷 1049-1059页

作者： Huanhuan Wu Zhongying Ren Lei Zheng Mengzhen Guo Jingyu Yang Liyong Hou Ghulam Qanmber Fuguang Li Zuoren Yang State Key Laboratory of Cotton Biology Cotton Research Institute of Chinese Academy of Agricultural SciencesAnyang 455000HenanChina National Key Laboratory of Crop Genetic Improvement Huazhong Agricultural UniversityWuhan 430070HubeiChina Zhengzhou Research Base State Key Laboratory of Cotton BiologyZhengzhou UniversityZhengzhou 450001HenanChina

Cotton (Gossypium spp.) is the most important natural textile fiber crop in the *** ideal plant architecture of cotton is suitable for mechanical harvesting and productivity in modern agricultural ***,cotton genes regulating plant development and architecture have not been fully *** identified a basic helix-loop-helix (b HLH) transcription factor,GhPAS1 (PAGODA1 SUPPRESSOR1) in *** (Upland cotton).GhPAS1 was located in the nucleus and showed a strong transcription activation ***-specific expression patterns showed that GhPAS1 was highly expressed in floral organs,followed by high expression in early stages of ovule development and rapid fiber ***1 overexpression in Arabidopsis and BRZ (brassinazole,BR biosynthesis inhibitor) treatment indicated that GhPAS1 positively regulates and responds to the BR (brassinosteroid) signaling pathway and promotes cell ***1 overexpression in Arabidopsis mediated plant development in addition to increasing plant ***-induced gene silencing of GhPAS1 indicated that down-regulation of GhPAS1 inhibited cotton growth and development,as plant height,fruit branch length,and boll size of silenced plants were lower than in control *** length and seed yield were also lower in silenced *** conclude that GhPAS1,a b HLH transcription factor,regulates plant development and architecture in *** findings may help breeders and researchers develop cotton cultivars with desirable agronomic characteristics.

关键词： Cotton fiber Basic helix-loop-helix GhPAS1 plant architecture Virus induced gene silencing

Disruption of OsARF19 is critical for floral organ development and plant architecture in rice（Oryza sativa L.）

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Disruption of OsARF19 is critical for floral organ developme...