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OsNAC5 orchestrates OsABI5 to fine-tune cold tolerance in rice

Journal of Integrative Plant Biology 2024年第4期66卷 660-682页

作者： Ruiqing Li Yue Song Xueqiang Wang Chenfan Zheng Bo Liu Huali Zhang Jian Ke Xuejing Wu Liquan Wu Ruifang Yang Meng Jiang College of Agronomy Anhui Agricultural UniversityHefei 230036China Hainan Institute Yazhou Bay Sci-Tech CityZhejiang UniversitySanya 572025China National key laboratory of Rice Biology Advanced Seed InstituteZhejiang UniversityHangzhou 311225China State key laboratory of Rice Biology and Chinese National Center for Rice improvement China National Rice Research InstituteHangzhou 311401China key laboratory of Germplasm Innovation and genetic improvement of Grain and Oil crops(Co-Construction by Ministry and province) Ministry of Agriculture and Rural AffairsCrop Breeding and Cultivation Research InstituteShanghai Academy of Agricultural SciencesShanghai 201106China

Due to its tropical origins,rice(Oryza sativa)is susceptible to cold stress,which poses severe threats to production.OsNAC5,a NAC-type transcription factor,participates in the cold stress response of rice,but the detailed mechanisms remain poorly understood.Here,we demonstrate that OsNAC5 positively regulates cold tolerance at germination and in seedlings by directly activating the expression of ABSCISIC ACID INSENSITIVE 5(OsABI5).Haplotype analysis indicated that single nucleotide polymorphisms in a NAC-binding site in the OsABI5 promoter are strongly associated with cold tolerance.OsNAC5 also enhanced OsABI5 stability,thus regulating the expression of cold-responsive(COR)genes,enabling fine-tuned control of OsABI5 action for rapid,precise plant responses to cold stress.DNA affinity purification sequencing coupled with transcriptome deep sequencing identified several OsABI5 target genes involved in COR expression,including DEHYDRATION-RESPONSIVE ELEMENT BINDING FACTOR 1A(OsDREB1A),OsMYB20,and PEROXIDASE 70(OsPRX70).In vivo and in vitro analyses suggested that OsABI5 positively regulates COR gene transcription,with marked COR upregulation in OsNAC5-overexpressing lines and downregulation in osnac5 and/or osabi5 knockout mutants.This study extends our understanding of cold tolerance regulation via OsNAC5 through the OsABI5-CORs transcription module,which may be used to ameliorate cold tolerance in rice via advanced breeding.

关键词： ABA signaling ABI5 cold tolerance DREB NAC5 rice

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Identification of P-type plasma membrane H^(+)-ATPases in common wheat and characterization of TaHA7 associated with seed dormancy and germination

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Journal of Integrative Agriculture 2024年第7期23卷 2164-2177页

作者： Bingli Jiang Wei Gao Yating Jiang Shengnan Yan Jiajia Cao Litian Zhang Yue Zhang Jie Lu Chuanxi Ma Cheng Chang Haiping Zhang key laboratory of Wheat Biology and genetic improvement on Southern Yellow&Huai River Valley Ministry of Agriculture and Rural Affairs/College of AgronomyAnhui Agricultural UniversityHefei 230036China

The P-type plasma membrane(PM)H^(+)-ATPases(HAs)are crucial for plant development,growth,and defense.The HAs have been thoroughly characterized in many different plants.However,despite their importance,the functions of HAs in germination and seed dormancy(SD)have not been validated in wheat.Here,we identified 28 TaHA genes(TaHA1-28)in common wheat,which were divided into five subfamilies.An examination of gene expression in strong-and weak-SD wheat varieties led to the discovery of six candidate genes(TaHA7/-12/-14/-16/-18/-20).Based on a single nucleotide polymorphism(SNP)mutation(C/T)in the TaHA7 coding region,a CAPS marker(HA7)was developed and validated in 168 wheat varieties and 171 Chinese mini-core collections that exhibit diverse germination and SD phenotypes.We further verified the roles of the two allelic variations of TaHA7 in germination and SD using wheat mutants mutagenized with ethyl methane sulphonate(EMS)in‘Jimai 22’and‘Jing 411’backgrounds,and in transgenic Arabidopsis lines.TaHA7 appears to regulate germination and SD by mediating gibberellic acid(GA)and abscisic acid(ABA)signaling,metabolism,and biosynthesis.The results presented here will enable future research regarding the TaHAs in wheat.

关键词： wheat P-type plasma membrane H^(+)-ATPase seed dormancy abscisic acid gibberellin

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GmAP1d regulates flowering time under long-day photoperiods in soybean

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The crop Journal 2024年第3期12卷 845-855页

作者： Shiyu Guo Yanfei Li Hongmei Qiu Guoyu Hu Chaosen Zhao Ruizhen Wang Hao Zhang Yu Tian Xiaoyu Li Bin Liu Ying-hui Li Li-juan Qiu College of Agriculture Northeast Agricultural UniversityHarbin 150030HeilongjiangChina State key laboratory of crop Gene Resources and Breeding/The National key Facility for crop Gene Resources and genetic improvement(NFCRI)/key laboratory of Grain crop genetic Resources Evaluation and Utilization(MARA) Institute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081China Jilin Academy of Agricultural Sciences/National Engineering Research Center for Soybean Changchun 130033JilinChina crop Research Institute Anhui Academy of Agricultural SciencesHefei 230031AnhuiChina crops Research Institute of Jiangxi Academy of Agricultural Sciences/Jiangxi province key laboratory of Oilcrops Biology Nanchang 330200JiangxiChina key Lab of Chinese Medicine Resources Conservation State Administration of Traditional Chinese Medicine of the People’s Republic of ChinaInstitute of Medicinal Plant DevelopmentChinese Academy of Medical Sciences&Peking Union Medical CollegeBeijing 100193China

Flowering time is important for adaptation of soybean(Glycine max)to different environments.Here,we conducted a genome-wide association study of flowering time using a panel of 1490 cultivated soybean accessions.We identified three strong signals at the qFT02-2 locus(Chr02:12037319–12238569),which were associated with flowering time in three environments:Gongzhuling,Mengcheng,and Nanchang.By analyzing linkage disequilibrium,gene expression patterns,gene annotation,and the diversity of variants,we identified an AP1 homolog as the candidate gene for the qFT02-2 locus,which we named GmAP1d.Only one nonsynonymous polymorphism existed among 1490 soybean accessions at position Chr02:12087053.Accessions carrying the Chr02:12087053-T allele flowered significantly earlier than those carrying the Chr02:12087053-A allele.Thus,we developed a cleaved amplified polymorphic sequence(CAPS)marker for the SNP at Chr02:12087053,which is suitable for marker-assisted breeding of flowering time.Knockout of GmAP1d in the‘Williams 82’background by gene editing promoted flowering under long-day conditions,confirming that GmAP1d is the causal gene for qFT02-2.An analysis of the region surrounding GmAP1d revealed that GmAP1d was artificially selected during the genetic improvement of soybean.Through stepwise selection,the proportion of modern cultivars carrying the Chr02:12087053-T allele has increased,and this allele has become nearly fixed(95%)in northern China.These findings provide a theoretical basis for better understanding the molecular regulatory mechanism of flowering time in soybean and a target gene that can be used for breeding modern soybean cultivars adapted to different latitudes.

关键词： Soybean Flowering time GWAS GmAP1d Long-day conditions

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Night warming increases wheat yield by improving pre-anthesis plant growth and post-anthesis grain starch biosynthesis

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Journal of Integrative Agriculture 2024年第2期23卷 536-550页

作者： Yonghui Fan Boya Qin Jinhao Yang Liangliang Ma Guoji Cui Wei He Yu Tang Wenjing Zhang Shangyu Ma Chuanxi Ma Zhenglai Huang College of Agronomy Anhui Agricultural University/Key Laboratory of Wheat Biology and Genetic Improvement in South Yellow&Huai River ValleyMinistry of Agriculture and Rural AffairsHefei 230036China Xianyang Central Station for Agricultural Technology Extension Xianyang 712000China

Global climate change is characterized by asymmetric warming,i.e.,greater temperature increases in winter,spring,and nighttime than in summer,autumn,and daytime.Field experiments were conducted using four wheat cultivars,namely‘Yangmai 18’(YM18),‘Sumai 188’(SM188),‘Yannong 19’(YN19),and‘Annong 0711’(AN0711),in the two growing seasons of 2019-2020 and 2020-2021,with passive night warming during different periods in the early growth stage.The treatments were night warming during the tillering-jointing(NW_(T-J)),jointing-booting(NWJ-B),and booting-anthesis(NWB-A)stages,with ambient temperature(NN)as the control.The effects of night warming during different stages on wheat yield formation were investigated by determining the characteristics of dry matter accumulation and translocation,as well as sucrose and starch accumulation in wheat grains.The wheat yields of all four cultivars were significantly higher in NW_(T-J)than in NN in the 2-year experiment.The yield increases of semi-winter cultivars YN19 and AN0711 were greater than those of spring cultivars YM18 and SM188.Treatment NW_(T-J)increased wheat yield mainly by increasing the 1,000-grain weight and the number of fertile spikelets,and it increased dry matter accumulation in various organs of wheat at the anthesis and maturity stages by increasing the growth rate at the vegetative growth stage.The flag leaf and spike showed the largest increases in dry matter accumulation.NW_(T-J)also increased the grain sucrose and starch contents in the early and middle grain-filling stages,promoting yield formation.Overall,night warming between the tillering and jointing stages increased the pre-anthesis growth rate,and thus,wheat dry matter production,which contributed to an increase in wheat yield.

关键词： wheat asymmetric warming dry matter accumulation and translocation starch yield

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GRK2 mediated degradation of SAV1 initiates hyperplasia of fibroblast-like synoviocytes in rheumatoid arthritis

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Acta Pharmaceutica Sinica B 2024年第3期14卷 1222-1240页

作者： Paipai Guo Ji Jiang Rui Chu Feng He Mingli Ge Ruhong Fang Qiuyun Guan Huijuan Cheng Chunru Jiang Tiantian Su Zhenduo Zhu Hao Liu Wei Wei Shihao Zhang Qingtong Wang Institute of Clinical Pharmacology Anhui Medical UniversityKey Laboratory of Anti-inflammatory and Immune MedicineMinistry of EducationCollaborative Innovation Center of Anti-inflammatory and Immune MedicinesHefei 230032China School of Pharmacy Bengbu Medical CollegeBengbu 233030China The Third Affiliated Hospital of anhui Medical University(the First People’s Hospital of Hefei) Hefei 230061China

Hyperplasia and migration of fibroblast-like synoviocytes(FLSs)are the key drivers in the pathogenesis of rheumatoid arthritis(RA)and joint destruction.Abundant Yes-associated protein(YAP),which is a powerful transcription co-activator for proliferative genes,was observed in the nucleus of inflammatory FLSs with unknown upstream mechanisms.Using Gene Expression Omnibus database analysis,it was found that Salvador homolog-1(SAV1),the pivotal negative regulator of the Hippo-YAP pathway,was slightly downregulated in RA synovium.However,SAV1 protein expression is extremely reduced.Subsequently,it was revealed that SAV1 is phosphorylated,ubiquitinated,and degraded by interacting with an important serine-threonine kinase,G protein-coupled receptor(GPCR)kinase 2(GRK2),which was predominately upregulated by GPCR activation induced by ligands such as prostaglandin E2(PGE2)in RA.This process further contributes to the decreased phosphorylation,nuclear translocation,and transcriptional potency of YAP,and leads to aberrant FLSs proliferation.genetic depletion of GRK2 or inhibition of GRK2 by paroxetine rescued SAV1 expression and restored YAP phosphorylation and finally inhibited RA FLSs proliferation and migration.Similarly,paroxetine treatment effectively reduced the abnormal proliferation of FLSs in a rat model of collagen-induced arthritis which was accompanied by a significant improvement in clinical manifestations.Collectively,these results elucidate the significance of GRK2 regulation of Hippo-YAP signaling in FLSs proliferation and migration and the potential application of GRK2 inhibition in the treatment of FLSs-driven joint destruction in RA.

关键词： Rheumatoid arthritis Fibroblast-like synoviocytes G protein-coupled receptor kinase 2 Salvador homolog-1 Yes-associated protein

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Identifying candidate genes involved in trichome formation on carrot stems by transcriptome profiling and resequencing

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Journal of Integrative Agriculture 2022年第12期21卷 3589-3599页

作者： WU Zhe YANG Xuan ZHAO Yu-xuan JIA Li College of Horticulture Shanxi Agricultural UniversityTaigu 030801P.R.China key laboratory of genetic improvement and ecophysiology of horticultural crop of anhui province Institute of HorticultureAnhui Academy of Agricultural SciencesHefei 230001P.R.China

Trichomes are specialized structures developed from epidermal cells and can protect plants against biotic and abiotic stresses.Trichomes cover carrots during the generative phase.However,the morphology of the carrot trichomes and candidate genes controlling the formation of trichomes are still unclear.This study found that carrot trichomes were nonglandular and unbranched hairs distributed on the stem,leaf,petiole,pedicel,and seed of carrot.Resequencing analysis of a trichome mutant with sparse and short trichomes(sst)and a wild type(wt)with long and dense trichomes on carrot stems was conducted.A total of 15396 genes containing nonsynonymous mutations in sst were obtained,including 42 trichomerelated genes.We also analyzed the transcriptome of the trichomes on secondary branches when these secondary branches were 10 cm long between wt and sst and obtained 6576 differentially expressed genes(DEGs),including 24 trichome-related genes.qRT-PCR validation exhibited three significantly up-regulated DEGs,20 significantly downregulated,and one with no difference.We considered both the resequencing and transcriptome sequencing analyses and found that 12 trichome-related genes that were grouped into five transcription factor families containing nonsynonymous mutations and significantly down-regulated in sst.Therefore,these genes are potentially promising candidate genes whose nonsynonymous mutations and down-regulation may result in scarce and short trichomes mutation on carrot stems in sst.

关键词： carrot trichome resequencing transcriptome candidate genes

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Heavy soil drying during mid-to-late grain filling stage of the main crop to reduce yield loss of the ratoon crop in a mechanized rice ratooning system

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The crop Journal 2022年第1期10卷 280-285页

作者： Chang Zheng Yuechao Wang Shen Yuan Sen Xiao Yating Sun Jianliang Huang Shaobing Peng National key laboratory of crop genetic improvement Hubei Hongshan LaboratoryMARA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze RiverCollege of Plant Science and TechnologyHuazhong Agricultural UniversityWuhan 430070HubeiChina

Yield loss(Y_(Loss)) in the ratoon crop due to crushing damage to left stubble from mechanical harvesting of the main crop is a constraint for wide adoption of mechanized rice ratooning technology.Soil drying before the harvest of the main crop has been proposed to overcome this problem.The objective of this study was to determine the effect of soil drying during the mid-to-late grain filling stage of the main crop on grain yield of the ratoon crop in a mechanized rice ratooning system.Field experiments were conducted to compare Y_(Loss) between light(LD) and heavy(HD) soil drying treatments in Hubei province,central China in 2017 and 2018.Y_(Loss) was calculated as the percentage of yield reduction in the ratoon crop with the main crop harvested mechanically,relative to the grain yield of the ratoon crop with the main crop harvested manually.In comparison with LD,soil hardness was increased by 42.8%-84.7% in HD at the 5-20 cm soil depth at maturity of the main crop.Soil hardness at 5 and 10 cm depths reached respectively 4.05 and 7.07 kg cm^(-2) in HD.Soil drying treatment did not significantly affect the grain yield of the main crop.Under mechanical harvesting of the main crop,HD increased the grain yield of the ratoon crop by 9.4% relative to LD.Consequently,Y_(Loss) was only 3.4% in HD,in contrast to 16.3% in LD.The differences in grain yield and Y_(Loos) between the two soil drying treatments were explained mainly by panicles m^(-2),which was increased significantly by HD in the track zone of the ratoon crop compared with LD.These results suggest that heavy soil drying practice during the mid-to-late grain filling stage of the main crop is effective for reducing Y_(Loss) of the ratoon crop in a mechanized rice ratooning system.

关键词： Crushing damage Mechanical harvesting Ratoon rice Soil drying Yield loss

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Border effects of the main and ratoon crops in the rice ratooning system

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Journal of Integrative Agriculture 2023年第1期22卷 80-91页

作者： ZHENG Chang WANG Yue-chao XU Wen-ba YANG De-sheng YANG Guo-dong YANG Chen HUANG Jian-liang PENG Shao-bing National key laboratory of crop genetic improvement/Hubei Hongshan laboratory/MARA key laboratory of crop ecophysiology and Farming Systems in the Middle Reaches of the Yangtze River/College of Plant Science and Technology Huazhong Agricultural UniversityWuhan 430070P.R.China

The border effect(BE)is widely observed in crop field experiments,and it has been extensively studied in many crops.However,only limited attention has been paid to the BE of ratoon rice.We conducted field experiments on ratoon rice in Qichun County,Hubei province,Central China in 2018 and 2019 to compare the BE in the main and ratoon crops,and to quantify the contribution of BE in the main crop to that in the ratoon crop.The BE of two hybrid varieties was measured for the outermost,second outermost,and third outermost rows in each plot of both crops.To determine the contribution of BE between the two crops,portions of hills in the outermost and second outermost rows were uprooted during the harvest of the main crop so that the second and third outermost rows then became the outermost rows in the ratoon crop.Overall,the BE on grain yield was greater in the main crop than in the ratoon crop.In the main crop,the BE on grain yield was 98.3%in the outermost row,which was explained by the BE on panicles m^(–2),spikelets/panicle,spikelets m^(–2),and total dry weight.In the ratoon crop,the BE on grain yield was reduced to 60.9 and 27.6%with and without the contribution of the BE in the main crop,respectively.Consequently,55.1%of the BE on grain yield in the ratoon crop was contributed from the main crop.High stubble dry weight and non-structural carbohydrate(NSC)accumulation at the harvest of the main crop were responsible for the contribution of BE in the main crop to that in the ratoon crop.Our results suggest that increases in stubble dry weight and NSC accumulation at the harvest of the main crop could be important strategies for developing high-yielding cropping practices in the rice ratooning system.

关键词： border effect grain yield non-structural carbohydrate ratoon rice

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Grain yield and lodging-related traits of ultrashort-duration varieties for direct-seeded and double-season rice in Central China

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Journal of Integrative Agriculture 2022年第10期21卷 2888-2899页

作者： WANG Xin-yu XU Le LI Xiao-xiao YANG Guo-dong WANG Fei PENG Shao-bing National key laboratory of crop genetic improvement/Hubei Hongshan laboratory/key laboratory of crop ecophysiology and Farming System in the Middle Reaches of the Yangtze River Ministry of Agriculture and Rural Affairs/College of Plant Science and TechnologyHuazhong Agricultural UniversityWuhan 430070P.R.China

Lodging is the most common constraint on grain yield of direct-seeded rice.There is limited information about lodging resistance and its related plant traits in direct-seeded and double-season rice(DDR)in Central China.This study aims to identify the plant traits that achieve high lodging resistance in ultrashort-duration varieties(about 95 days)of DDR.Field experiments were conducted in 2017 and 2018 in Wuxue County,Hubei province,China,with four ultrashort-duration varieties grown under two nitrogen(N)rates.Lodging-related traits were measured on the 15 th day after heading,and yield and yield attributes were measured at maturity.The grain yield of the four varieties ranged from 4.59 to 7.61 t ha^(-1)across the two N rates,with a total growth duration of 85 to 97 days.Varietal differences in lodging index were mainly explained by the bending moment,which was closely related to plant height.Breaking resistance did not affect the lodging index significantly.Shortening plant height from 95.4 to 80.5 cm decreased the lodging index by 22.4%but did not reduce grain yield.Our results suggested that reducing plant height was effective in improving the lodging resistance of ultrashort-duration varieties of DDR.Lodging resistance should be enhanced by improving breaking resistance rather than reducing plant height to increase DDR grain yield further.

关键词： direct seeding double-season rice lodging plant height ultrashort growth duration

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Grain yield and nitrogen use efficiency of an ultrashort-duration variety grown under different nitrogen and seeding rates in direct-seeded and double-season rice in Central China

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Journal of Integrative Agriculture 2023年第4期22卷 1009-1020页

作者： WANG Xin-yu YANG Guo-dong XU Le XIANG Hong-shun YANG Chen WANG Fei PENG Shao-bing National key laboratory of crop genetic improvement/Hubei Hongshan laboratory/key laboratory of crop ecophysiology and Farming System in the Middle Reaches of the Yangtze River Ministry of Agriculture and Rural Affairs/College of Plant Science and TechnologyHuazhong Agricultural UniversityWuhan 430070P.R.China

Nitrogen(N) and seeding rates are important factors affecting grain yield and N use efficiency(NUE) in directseeded rice. However, these factors have not been adequately investigated on direct-seeded and double-season rice(DDR) in Central China. The objective of this study was to evaluate the effects of various N and seeding rates on the grain yield and NUE of an ultrashort-duration variety grown under DDR. Field experiments were conducted in 2018 in Wuxue County and 2019 in Qichun County, Hubei province, China with four N rates and three seeding rates.The results showed that the grain yield of the ultrashort-duration variety ranged from 6.32 to 8.23 t ha–1with a total growth duration of 85 to 97 days across all treatments with N application. Grain yield was increased significantly by N application in most cases, but seeding rate had an inconsistent effect on grain yield. Furthermore, the response of grain yield to the N rates was much higher than the response to seeding rates. The moderate N rates of 100–150 and 70–120 kg N ha–1in the early and late seasons, respectively, could fully express the yield potential of the ultrashort-duration variety grown under DDR. Remarkably higher N responses and agronomic NUE levels were achieved in the early-season rice compared with the late-season rice due to the difference in indigenous soil N supply capacity(INS) between the two seasons. Seasonal differences in INS and N response should be considered when crop management practices are optimized for achieving high grain yield and NUE in ultrashort-duration variety grown under DDR.

关键词： direct-seeded and double-season rice grain yield nitrogen rate nitrogen use efficiency seeding rate

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