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GmAP1d regulates flowering time under long-day photoperiods in soybean

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 ***,we conducted a genome-wide association study of flowering time using a panel of 1490 cultivated soybean *** identified three strong signals at the qFT02-2 locus(Chr02:12037319–12238569),which were associated with flowering time in three environments:Gongzhuling,Mengcheng,and *** 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 *** one nonsynonymous polymorphism existed among 1490 soybean accessions at position Chr02:*** carrying the Chr02:12087053-T allele flowered significantly earlier than those carrying the Chr02:12087053-A ***,we developed a cleaved amplified polymorphic sequence(CAPS)marker for the SNP at Chr02:12087053,which is suitable for marker-assisted breeding of flowering *** of GmAP1d in the‘Williams 82’background by gene editing promoted flowering under long-day conditions,confirming that GmAP1d is the causal gene for *** analysis of the region surrounding GmAP1d revealed that GmAP1d was artificially selected during the genetic improvement of *** 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 *** 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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genetic and lipidomic analyses reveal the key role of lipid metabolism for cold tolerance in maize

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Journal of genetics and Genomics 2024年第3期51卷 326-337页

作者： Lei Gao Haifang Jiang Minze Li Danfeng Wang Hongtao Xiang Rong Zeng Limei Chen Xiaoyan Zhang Jianru Zuo Shuhua Yang Yiting Shi State key laboratory of Plant Environmental Resilience College of Biological SciencesFrontiers Science Center for Molecular Design BreedingCenter for Crop Functional Genomics and Molecular BreedingChina Agricultural UniversityBeijing 100193China State key laboratory of Wheat&Maize Crop Science College of Life SciencesHenan Agricultural UniversityZhengzhouHenan 450002China State key laboratory of Plant Genomics Institute of Genetics and Developmental BiologyChinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences Beijing 100049China Suihua Branch of Heilongjiang Academy of Agricultural Machinery Sciences SuihuaHeilongjiang 152052China

Lipid remodeling is crucial for cold tolerance in ***,the precise alternations of lipidomics during cold responses remain elusive,especially in maize(Zea mays L.).In addition,the key genes responsible for cold tolerance in maize lipid metabolism have not been ***,we integrate lipidomic,transcriptomic,and genetic analysis to determine the profile of lipid remodeling caused by cold *** find that the homeostasis of cellular lipid metabolism is essential for maintaining cold tolerance of ***,we detect 210 lipid species belonging to 13 major classes,covering phospholipids,glycerides,glycolipids,and free fatty *** lipid metabolites undergo specific and selective alterations in response to cold stress,especially mono-/di-unsaturated lysophosphatidic acid,lysophosphatidylcholine,phosphatidylcholine,and phosphatidylinositol,as well as polyunsaturated phosphatidic acid,monogalactosyldiacylglycerol,diacylglycerol,and *** addition,we identify a subset of key enzymes,including ketoacyl-acyl-carrier protein synthase II(KAS II),acyl-carrier protein 2(ACP2),male sterility33(Ms33),and stearoyl-acyl-carrier protein desaturase 2(SAD2)involved in glycerolipid biosynthetic pathways are positive regulators of maize cold *** results reveal a comprehensive lipidomic profile during the cold response of maize and provide genetic resources for enhancing cold tolerance in crops.

关键词： Maize Cold stress Lipid metabolism Transcriptome Lipidomic

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Screening and identification of salt tolerance soybean varieties and germplasms

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Oil Crop Science 2024年第3期9卷 204-210页

作者： Limiao Chen Lihua Peng Wenqi Ouyang Haowen Yao Yuxin Ye Zhihui Shan Dong Cao Shuilian Chen Zhonglu Yang Yi Huang Bei Han Aihua Sha Xinan Zhou Haifeng Chen key laboratory of biology and genetic Improvement of Oil Crops Ministry of Agriculture and Rural AffairsOil Crops Research Institute of Chinese Academy of Agricultural SciencesWuhan430062China College of Agriculture Yangtze UniversityJingzhou434000China

Soil salinization is a globally prevalent abiotic environmental *** imbalance of ions caused by high concentrations of sodium chloride results in a 40%reduction in soybean ***,as an important crop for soil quality improvement,necessitates the identification of salt-tolerant varieties and germplasms to effectively utilize and enhance saline-alkali *** this study,we assessed the salt tolerance of 435 soybean varieties and germplasms during the seedling *** them,Qihuang34,You2104,Hongzhudou,Pamanheidou,and Osage exhibited grade 1 salt tolerance rates surpassing other tested ***,Hongzhudou and Qihuang34 demonstrated higher salt tolerance during germination and emergence stages based on their elevated rates of emergence,salt tolerance index,chlorophyll content,and shoot fresh *** findings provide valuable resources for molecular breeding efforts aimed at developing salt-tolerant soybean varieties suitable for cultivation in saline-alkali soils.

关键词： Soybean Varieties Germplasms Salt tolerance Seedling stage Germination and emergence stage

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Selenocysteine methyltransferase SMT catalyzed the synthesis of Se-methylselenocysteine to regulate the accumulation of glucosinolates and sulforaphane in broccoli

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Horticultural Plant Journal 2024年第5期10卷 1151-1164页

作者： Qi Wu Junwei Wang Yuxiao Tian Chunyan Zhou Shuxiang Mao Qiuyun Wu Ke Huang College of Horticulture Hunan Agricultural UniversityChangshaHunan 410128China Engineering Research Center for Horticultural Crop Germplasm Creation and New Variety breeding Ministry of EducationChangshaHunan 410128China key laboratory for Vegetable biology of Hunan Province ChangshaHunan 410128China

Selenocysteine methyltransferase(SMT)is a key enzyme involved in the Se metabolism pathway,and it is responsible for the catalysis of Se-methylselenocysteine(SeMSC)compound *** studies showed that selenium treatment activated SMT expression and promoted the accumulation of glucosinolates(GSLs)and sulforaphane,but the roles and functional mechanisms of SMT in mediating GSLs and sulforaphane synthesis remain *** this study,we identified the BoSMT gene in broccoli and uncovered its roles in mediating GSLs *** assays revealed that BoSMT is involved in SeMSC biosynthesis in *** importantly,the contents of GSLs and sulforaphane were significantly increased in the BoSMT-overexpressing broccoli lines but decreased in the knockdown lines,suggesting that BoSMT played a positive role in regulating GSLs and sulforaphane *** evidence indicated that BoSMT-mediated overaccumulation of GSLs and sulforaphane might be due to the increase in the endogenous SeMSC *** with the mock(water)treatment,selenite-induced significantly increases of the SeMSC content in the BoSMT-knockdown plants partially compensated the phenotype of GSLs and sulforaphane *** with the mock treatment,exogenous SeMSC treatment significantly increased the contents of GSL and sulforaphane and activated GSL synthesis-related gene expression,suggesting that SeMSC acted as a positive regulator for GSL and sulforaphane *** findings provided novel insights into selenium-mediated GSLs and sulforaphane *** genetic manipulation of BoSMT might be a useful strategy for improving the dietary nutritional values of broccoli.

关键词： Selenocysteine methyltransferase Transgenic broccoli Se-methylselenocysteine Glucosinolate sulforaphane Selenium

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Overcoming genotypic dependency and bypassing immature embryos in wheat transformation by using morphogenic regulators

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Science China(Life Sciences) 2024年第7期67卷 1535-1538页

作者： Ziru Zhou Yawen Yang Guo Ai Miaomiao Zhao Baozhu Han Chunjie Zhao Yiqian Chen Yuwei Zhang Hong Pan Caixia Lan Chao He Qiang Li Jieting Xu Wenhao Yan National key laboratory of Crop genetic Improvement Hubei Hongshan LaboratoryHuazhong Agricultural UniversityWuhan 430070China WIMI Biotechnology Co. Ltd.Changzhou 213025China

Dear Editor,Agrobacterium-mediated transformation technology is of vital importance for functional genomics studies and precision breeding in crops due to low cost and clear genetic manifestation.A morphogenic gene pa... 详细信息

关键词： breeding crops transformation

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GR5 acts in the G protein pathway to regulate grain size in rice

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Plant Communications 2024年第1期5卷 181-195页

作者： Yueying Wang Yang Lv Haiping Yu Peng Hu Yi Wen Junge Wang Yiqing Tan Hao Wu Lixin Zhu Kaixiong Wu Bingze Chai Jialong Liu Dali Zeng Guangheng Zhang Li Zhu Zhenyu Gao Guojun Dong Deyong Ren Lan Shen Qiang Zhang Qing Li Longbiao Guo Guosheng Xiong Qian Qian Jiang Hu State key laboratory of Rice biology and breeding China National Rice Research InstituteHangzhou 310006China Hainan Yazhou Bay Seed laboratory Sanya 572024HainanChina National Nanfan Research Institute(Sanya) Chinese Academy of Agricultural SciencesSanya 572024China Nanjing Agricultural University Nan Jing 210000JiangsuChina

Grain size is an important determinant of grain yield in *** dozens of grain size genes have been reported,the molecular mechanisms that control grain size remain to be fully ***,we report the cloning and characterization of GR5(GRAIN ROUND 5),which is allelic to SMOS1/SHB/RLA1/NGR5 and en-codes an AP2 transcription ***5 acts as a transcriptional activator and determines grain size by influencing cell proliferation and *** demonstrated that GR5 physically interacts withfive Gg subunit proteins(RGG1,RGG2,DEP1,GS3,and GGC2)and acts downstream of the G protein *** downstream target genes of GR5 in grain development(DEP2,DEP3,DRW1,and CyCD5;2)were re-vealed and their core T/CGCAC motif identified by yeast one-hybrid,EMSA,and ChIP–PCR *** results revealed that GR5 interacts with Gg subunits and cooperatively determines grain size by regu-lating the expression of downstream target *** provide new insight into the genetic reg-ulatory network of the G protein signaling pathway in the control of grain size and provide a potential target for high-yield rice breeding.

关键词： grain size G proteinγsubunit GR5 AP2 transcription factor rice(Oryza sativa L.)

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Two haplotype-resolved genome assemblies for AAB allotriploid bananas provide insights into banana subgenome asymmetric evolution and Fusarium wilt control

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Plant Communications 2024年第2期5卷 243-260页

作者： Wen-Zhao Xie Yu-Yu Zheng Weidi He Fangcheng Bi Yaoyao Li Tongxin Dou Run Zhou Yi-Xiong Guo Guiming Deng Wenhui Zhang Min-Hui Yuan Pablo Sanz-Jimenez Xi-Tong Zhu Xin-Dong Xu Zu-Wen Zhou Zhi-Wei Zhou Jia-Wu Feng Siwen Liu Chunyu Li Qiaosong Yang Chunhua Hu Huijun Gao Tao Dong Jiangbo Dang Qigao Guo Wenguo Cai Jianwei Zhang Ganjun Yi Jia-Ming Song Ou Sheng Ling-Ling Chen Institute of Fruit Tree Research Guangdong Academy of Agricultural SciencesKey Laboratory of South Subtropical Fruit Biology and Genetic Resource UtilizationMinistry of Agriculture and Rural AffairsGuangdong Provincial Key Laboratory of Tropical and Subtropical Fruit Tree ResearchGuangzhou 510640China College of Informatics Huazhong Agricultural UniversityWuhan 430070China State key laboratory for Conservation and Utilization of Subtropical Agro-bioresources College of Life Science and TechnologyGuangxi UniversityNanning 530004China College of Horticulture and Landscape Architecture Southwest UniversityChongqing 400715China

Bananas(Musa spp.)are one of the world’s most important fruit crops and play a vital role in food security for many developing *** banana cultivars are triploids derived from inter-and intraspecific hybrid-izations between the wild diploid ancestor species Musa acuminate(AA)and ***(BB).We report two haplotype-resolved genome assemblies of the representative AAB-cultivated types,Plantain and Silk,and precisely characterize ancestral contributions by examining ancestry mosaics across the *** asymmetric evolution is observed in their subgenomes,which can be linked to frequent homol-ogous exchange *** reveal the genetic makeup of triploid banana cultivars and verify that subge-nome B is a rich source of disease resistance *** 58.5%and 59.4%of Plantain and Silk genes,respectively,are present in all three haplotypes,with>50%of genes being differentially expressed alleles in different *** observed that the number of upregulated genes in Plantain is significantly higher than that in Silk at one-week post-inoculation with Fusarium wilt tropical race 4(Foc TR4),which con-firms that Plantain can initiate defense responses faster than ***,we compared genomic and transcriptomic differences among the genes related to carotenoid synthesis and starch metabolism between Plantain and *** study provides resources for better understanding the genomic architecture of culti-vated bananas and has important implications for Musa genetics and breeding.

关键词： bananas Plantain Silk asymmetric evolution homologous exchange Fusarium wilt

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Combining QTL Mapping and Multi-Omics Identify Candidate Genes for Nutritional Quality Traits during Grain Filling Stage in Maize

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Phyton-International Journal of Experimental Botany 2024年第7期93卷 1441-1453页

作者： Pengcheng Li Tianze Zhu Yunyun Wang Shuangyi Yin Xinjie Zhu Minggang Ji Wenye Rui Houmiao Wang Zefeng Yang Chenwu Xu Jiangsu key laboratory of Crop genetics and Physiology Key Laboratory of Plant Functional Genomics of the Ministry of EducationJiangsu Key Laboratory of Crop Genomics and Molecular BreedingAgricultural College of Yangzhou UniversityYangzhou225009China Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops Yangzhou UniversityYangzhou225009China

The nutritional composition and overall quality of maize kernels are largely determined by the key chemical com-ponents:protein,oil,and ***,the genetic basis underlying these nutritional quality traits during grainﬁlling remains poorly *** this study,the concentrations of protein,oil,and starch were studied in 204 recombinant inbred lines resulting from a cross between DH1M and T877 at four different stages *** the traits exhibited considerable phenotypic *** the grain-ﬁlling stage,the levels of protein and starch content generally increased,whereas oil content decreased,with signiﬁcant changes observed between 30 and 40 days after *** trait locus(QTL)mapping was conducted and a total of 32 QTLs,comprising 14,12,and 6 QTLs for grain protein,oil,and starch content were detected,*** QTLs were consistently detectable across different time *** integrating QTL analysis,glo-bal gene expression proﬁling,and comparative genomics,we identiﬁed 157,86,and 54 differentially expressed genes harboring nonsynonymous substitutions between the parental lines for grain protein,oil,and starch con-tent,*** gene function annotation prioritized 15 candidate genes potentially involved in reg-ulating grain quality traits,including those encoding transcription factors(NAC,MADS-box,bZIP,and MYB),cell wall invertase,cellulose-synthase-like protein,cell division cycle protein,trehalase,auxin-responsive factor,and phloem protein *** study offers signiﬁcant insights into the genetic architecture of maize kernel nutritional quality and identiﬁes promising QTLs and candidate genes,which are crucial for the genetic enhance-ment of these traits in maize breeding programs.

关键词： Maize protein oil starch QTL mapping candidate genes

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Fast,simple,efficient Agrobacterium rhizogenes-mediated transformation system to non-heading Chinese cabbage with transgenic roots

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Horticultural Plant Journal 2024年第2期10卷 450-460页

作者： Huiyu Wang Yushan Zheng Qian Zhou Ying Li Tongkun Liu Xilin Hou State key laboratory of Crop genetics&Germplasm Enhancement Key Laboratory of Biology and Genetic Improvement of Horticultural Crops(East China)Ministry of Agriculture and Rural Affairs of ChinaEngineering Research Center of Germplasm Enhancement and Utilization of Horticultural CropsMinistry of Education of ChinaNanjing Agricultural UniversityNanjingJiangsu 210095China Nanjing Suman Plasma Engineering Research Institute Nanjing Agricultural UniversityNanjingJiangsu 210095China

Non-heading Chinese cabbage, a variety of Brassica campestris, is an important vegetable crop in the Yangtze River Basin of China. However,the immaturity of its stable transformation system and its low transformation efficiency limit gene function research on non-heading Chinese cabbage. Agrobacterium rhizogenes-mediated(ARM) transgenic technology is a rapid and effective transformation method that has not yet been established for non-heading Chinese cabbage plants. Here, we optimized conventional ARM approaches(one-step and two-step transformation methods) suitable for living non-heading Chinese cabbage plants in nonsterile environments. Transgenic roots in composite non-heading Chinese cabbage plants were identified using phenotypic detection, fluorescence observation, and PCR analysis. The transformation efficiency of a two-step method on four five-day-old non-heading Chinese cabbage seedlings(Suzhouqing, Huangmeigui, Wuyueman, and Sijiu Caixin) was 43.33%-51.09%, whereas using the stout hypocotyl resulted in a transformation efficiency of 54.88% for the 30-day-old Sijiu *** one-step method outperformed the two-step method;the transformation efficiency of different varieties was above 60%, and both methods can be used to obtain transgenic roots for functional studies within one month. Finally, optimized ARM transformation methods can easily,quickly, and effectively produce composite non-heading Chinese cabbage plants with transgenic roots, providing a reliable foundation for gene function research and non-heading Chinese cabbage genetic improvement breeding.

关键词： Agrobacterium rhizogenes Non-heading Chinese cabbage Transgenic roots Composite plant Transformation efficiency

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TaSRO1 interacts with TaVP1 to modulate seed dormancy and pre-harvest sprouting resistance in wheat

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Journal of Integrative Plant biology 2024年第1期66卷 36-53页

作者： Shupeng Liu Li Li Wenlong Wang Guangmin Xia Shuwei Liu key laboratory of Plant Development and Environmental Adaptation biology Ministry of EducationSchool of Life ScienceShandong UniversityQingdao 266237China

Dormancy is an adaptive trait which prevents seeds from germinating under unfavorable environmental *** with weak dormancy undergo pre-harvest sprouting(PHS)which decreases grain yield and *** the genetic mechanisms that regulate seed dormancy and resistance to PHS is crucial for ensuring global food *** this study,we illustrated the function and molecular mechanism of TaSRO1 in the regulation of seed dormancy and PHS resistance by suppressing *** tasro1 mutants exhibited strong seed dormancy and enhanced resistance to PHS,whereas the mutants of tavp1 displayed weak *** evidence has shown that TaVP1 is epistatic to *** evidence has shown that TaSRO1 interacts with TaVP1 and represses the transcriptional activation of the PHS resistance genes TaPHS1 and ***,TaSRO1 undermines the synergistic activation of TaVP1 and TaABI5 in PHS resistance ***,we highlight the great potential of tasro1 alleles for breeding elite wheat cultivars that are resistant to PHS.

关键词： wheat seed dormancy pre-harvest sprouting(PHS) ABA signaling vivipary

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