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Phyton-International Journal of Experimental Botany 2023年第9期92卷 2683-2697页

作者： Xiaolan Guo Jinbin Hu Shimei Yang Delu Wang Jianbing Wang College of Life Sciences Huizhou UniversityHuizhou516007China College of Forestry Guizhou UniversityGuiyang550025China School of Architecture and Civil Engineering Huizhou UniversityHuizhou516007China Guizhou Institute of Subtropical Crop. Guizhou Academy of Agricultural SciencesXingyi562400China

The F3′5′H gene family plays an important role in regulating anthocyanin biosynthesis,abiotic stress,and hormone signaling.In this study,14 F3′5′H genes were identified from the blueberry genome.The chromosomal distribution,physicochemical properties,F3′5′H domain,conserved motifs,cis-acting elements,and intron/exon compositions were analyzed.The functional prediction analysis of these VcF3′5′Hs indicated that their biological functions included light response and other secondary metabolites.The results of qRT-PCR showed that VcF3′5′Hs(especially VcF3′5′H4)were highly expressed at the ripening stage.Subcellular localization revealed that VcF3′5′H4 may be located in the endoplasmic reticulum.Co-expression analysis showed that the VcF3′5′H gene family was related to anthocyanin.This research provides an overview of the blueberry F3′5′H family and helps verify the role of these genes in regulating anthocyanin biosynthesis.

关键词： Blueberry F3′5′H anthocyanin gene expression co-expression

Effect of Planting Density,Fertilizer Level,and Number of Seedlings per Hole on Yield of Coix Lachryrma-jobi L.

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Asian Agricultural Research 2015年第8期7卷 69-70 73,73页

作者： Zhiqin SONG Maohong AO Gang SHEN Pengfei LIU guizhou institute of Modern Chinese Medicinal Materials guizhou subtropical crop.institute

In order to study high yield cultivation technology for Coix Lachryrma-jobi L.,and discuss the effect of planting density,fertilizer level,and number of seedlings per hole on yield of Coix Lachryrma-jobi L.,this paper took domesticated variety Xingren Small White Shell of Coix Lachryrma-jobi L. as an example. Using L9( 34) orthogonal design,it selected optimum combination of planting density,fertilizer level,and number of seedlings per hole to guide planting of Coix Lachryrma-jobi L.. Experiment indicated that the optimum planting density( spacing in the rows and spacing between rows) of Coix Lachryrma-jobi L. is 40 cm x 80 cm; the optimum fertilizer level is pure nitrogen 15 kg,pure phosphorus 15 kg and pure potassium 15 kg per mu; the optimum number of seedlings per hole is 5 seedlings per hole. Through variance analysis,it indicated that planting density exerts significance effect on the yield of Coix Lachryrma-jobi L.

关键词： Coix Lachryrma-jobi L. Orthogonal design Planting

Physicochemical and Sensory Properties of japonica Rice Varied with Production Areas in China

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Journal of Integrative Agriculture 2013年第10期12卷 1748-1756页

作者： YANG Xiao-yu LIN Zhao-miao LIU Zheng-hui Md A Alim BI Jun-guo LI Gang-hua WANG Qiang-sheng WANG Shao-hua DING Yan-feng College of Agronomy Nanjing Agricultural University Guizhou Institute of Subtropical Crop.

Northeast of China and Jiangsu Province are major production areas of japonica rice in China.Rice from northeast of China is well-known for its good-eating and appearance quality,and that from Jiangsu Province is viewed as inferior.However,little is known concerning the difference in physicochemical and sensory properties of rice between the major two production areas.Analysis of 16 commercial rice samples showed marked differences in physicochemical properties,including chalky grain rate,contents of amylose and protein and pasting properties between the two main areas.Northeastern rice contained more shortchain amylopectin as compared with Jiangsu rice.However,Jiangsu rice is comparable to northeastern rice in terms of sensory quality including overall acceptability and textural properties of springiness,stickiness and hardness as evaluated by trained panel.Our results indicated the limitation of conventional index of physicochemical properties,and suggested the necessity of identification of new factors controlling rice sensory property.In addition,the taste analyzer from Japan demonstrates limitation in distinguishing the differences between northeastern and Jiangsu rice,and therefore needs localization to fit China.

关键词： rice sensory property physicochemical property production environment

A bacterial artificial chromosome-based physical map of Manihot esculenta ssp. flabellifolia

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Frontiers of Agricultural Science and Engineering 2016年第4期3卷 321-329页

作者： Yuhua FU Zhiqiang XIA Shujuan WANG Xin CHEN Cheng LU Mingcheng LUO Hongbin ZHANG Wenquan WANG institute of tropical Biosciences & Biotechnology Chinese Academy of Tropical Agricultural Sciences Guizhou Institute of Subtropical Crop. Guizhou Academy of Agricultural Sciences Department of Plant Sciences UC Davis Department of Soil and crop.Sciences Texas A&M University College Station

Cassava(Manihot esculenta) is known as the third most important food crop.in the tropics and also used for industrial feedstock for biofuels. Two new bacterial artificial chromosome(BAC) libraries were constructed for W14(M. Esculenta ssp. flabellifolia), a wild ancestor of domesticated cassava. The libraries were constructed with EcoR I and Hind III insertion vectors, respectively.The EcoR I library has 29952 clones with an average insert size of 115 kb, while the Hind III library consists of 29952 clones with an average insert of 129 kb. The combined libraries contain a total of 59904 clones with an average insert size of 125 kb, representing approximately 10 ?haploid genome equivalents. A total of 29952 clones were fingerprinted and resulted in a cassava physical map composed of 2485 contigs with an average physical length of 336 kb and 2909 singletons, representing approximately762 Mb of the cassava genome. 5000 clones located at the ends of BAC contigs were selected and sequenced. A total of 6077 SNPs and 231 indels were identified, that covered459 gene sequences, of which 6 genes were associated with starch and sucrose metabolism. This BAC-based physical map provides valuable tools to understand the genetics and evolution of cassava.

关键词： cassava BAC library physical map

Diversity in metagenomic sequences reveals new pathogenic fungus associated with smut in Job's tears

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Journal of Integrative Agriculture 2020年第9期19卷 2257-2264页

作者： LI Xiang-dong SHI Ming PAN Hong LU Xiu-juan WEI Xin-yuan LU Ping LIAN Qi-xian FU Yu-hua Southwest guizhou institute of Karst Regional Development Xingyi 562400P.R.China Adlay of Engineering Technical Research Centre in guizhou Xingyi 562400P.R.China institute of crop.Sciences Chinese Academy of Agricultural SciencesBeijing 100081P.R.China Xingyi Normal University for Nationalities Xingyi 562400P.R.China Guizhou Institute of Subtropical Crop. Guizhou Academy of Agricultural SciencesXingyi 562400P.R.China

Smut is a serious disease in Job's tears,also known as adlay,and contributes to the reduction of crop.yield in agricultural fields.In this study,the key pathogenic fungi in adlay smut disease were first identified by internal transcribed spacer region(ITS)high-throughput sequencing and then used to elucidate the composition and diversity of the fungal community in adlay smut.Results indicate that an abundance of operational taxonomic units(OTUs)were detected in the infected involucres of flowering plants and the OTUs were classified to nine phyla,20 classes,45 orders,90 families and 119 genera.A total of 4986 OTUs clustered together,sharing six core OTUs in all samples,while 145 OTUs were shared among four geographical groups.The Shannon and Simpson indices ranged from 0.137–1.629 and 0.357–0.970,respectively.Community diversity ranked as Anshun(AS)>Qinglong(QL)>Xingren(XR)>Xingyi(XY)among the four geographical groups by Shannon and Simpson indices,exhibiting complex community diversities among accessions and geographical groups.The richness and diversity data imply a weak relationship between the accession community richness and geographical origins of samples.Two closely related fungal genera,Sporisorium and Ustilago,were implicated as causes of smut disease.The genus Sporisorium appears to be more commonly found among accessions and thus is more likely to be the fungal pathogen causing smut in adlay.This work can facilitate strategies to control and prevent smut infection to improve adlay yield.

关键词： metagenomic ITS smut Job's tears

Genomic footprints of Kam Sweet Rice domestication indicate possible migration routes of theDongpeople inChina andprovide resources for future rice breeding

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Molecular Plant 2023年第2期16卷 415-431页

作者： Chunhui Liu Tianyi Wang Huicha Chen Xiaoding Ma Chengzhi Jiao Di Cui Bing Han Xiaobing Li Aixia Jiao Renchao Ruan Dayuan Xue Yanjie Wang Longzhi Han institute of crop.Sciences Chinese Academy of Agricultural SciencesBeijing 100081China College of Life and Environmental Sciences Minzu University of ChinaBeijing 100081China Smartgenomics Technology institute Tianjin 301700China institute of crop.Germplasm Resources Guizhou Academy of Agricultural SciencesGuiyang 550025China

The Dong people are one of China’s 55 recognized ethnic minorities,but there has been a long-standing debate about their origins.In this study,we performed whole-genome resequencing of Kam Sweet Rice(KSR),a valuable,rare,and ancient rice landrace unique to the Dong people.Through comparative genomic analyses of KSR and other rice landraces from south of the Yangtze River Basin in China,we provide evidence that the ancestors of the Dong people likely originated from the southeast coast of China at least 1000 years ago.Alien introgression and admixture in KSR demonstrated multiple migration events in the history of the Dong people.Genomic footprints of domestication demonstrated characteristics of KSR that arose from artificial selection and geographical adaptation by the Dong people.The key genes GS3,Hd1,and DPS1(related to agronomic traits)and LTG1 and MYBS3(related to cold tolerance)were identified as domestication targets,reflecting crop.improvement and changes in the geographical environment of the Dong people during migration.A genome-wide association study revealed a candidate yield-associated gene,Os01g0923300,a specific haplotype in KSR that is important for regulating grain number per panicle.RNA-sequencing and quantitative reverse transcription-PCR results showed that this gene was more highly expressed in KSR than in ancestral populations,indicating that it may have great value in increasing yield potential in other rice accessions.In summary,our work develops a novel approach for studying human civilization and migration patterns and provides valuable genomic datasets and resources for future breeding of high-yield and climate-resilient rice varieties.

关键词： Dong ethnic group Kam Sweet Rice genomic evolution population genetics

Plants affect the horizontal transmission of a new densovirus infecting the green peach aphid Myzus persicae by modulating honeydew production

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Insect Science 2024年第1期31卷 236-254页

作者： Ya Guo Yani Zhao Yang Yang Yahong Zhang Yuying Li Honggang Tian Tong-Xian Liu Zhaofei Li State Key Laboratory of crop.Stress Biology for Arid Areas Key Laboratory of Northwest Loess Plateau Crop Pest Management of Ministry of AgricultureCollege of Plant ProtectionNorthwest A&F UniversityYanglingChina institute of Entomology and institute of Plant Health&Medicine Guizhou UniversityGuiyangChina

In a tritrophic context of plant-insect-entomopathogen,plants play important roles in modulating the interaction of insects and their pathogenic viruses.Currently,the influence of plants on the transmission of insect viruses has been mainly studied on baculoviruses and some RNA viruses,whereas the impact of plants on other insect viruses is largely unknown.Here,we identified a new densovirus infecting the green peach aphid Myzus persicae and tested whether and how host plants influence the transmission of the aphid densovirus.The complete single-stranded DNA genome of the virus,M.persicae densovirus 2,is 5727 nt and contains inverted terminal repeats.Transcription and phylogenetic analysis indicated that the virus was distinct from other a few identified aphid densoviruses.The virus abundance was detected highly in the intestinal tract of aphids,compared with the lower level of it in other tissues including head,embryo,and epidermis.Cabbage and pepper plants had no obvious effect on the vertical transmission and saliva-mediated horizontal transmission of the virus.However,the honeydew-mediated horizontal transmission among aphids highly depended on host plants(65%on cabbages versus 17%on peppers).Although the virus concentration in the honeydew produced by aphids between 2 plants was similar,the honeydew production of the infected aphids reared on peppers was dramatically reduced.Taken together,our results provide evidence that plants influence the horizontal transmission of a new densovirus in an aphid population by modulating honeydew secretion of aphids,suggesting plants may manipulate the spread of an aphid-pathogenic densovirus in nature.

关键词： aphids densovirus host plants MpDV2 Myzus persicae transmission

Phosphorylation of OsFD1 by OsCIPK3 promotes the formation of RFT1-containing florigen activation complex for long-day flowering in rice

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Molecular Plant 2021年第7期14卷 1135-1148页

作者： Qiang Peng Chunmei Zhu Tao Liu Shuo Zhang Shijing Feng Changyin Wu National Key Laboratory of crop.Genetic Improvement National Center of Plant Gene Research(Wuhan)Huazhong Agricultural UniversityWuhan 430070China guizhou Rice Research institute Guizhou Academy of Agricultural SciencesGuiyang 550006China

Heading date is a critical trait that determines the regional adaptability and grain productivity of many crop..Although rice is a facultative short-day plant,its domestication led to the Ghd7-Ehd1-Hd3a/RFT1 pathway for adaptation to long-day conditions(LDs).The formation of the"florigen activation complex"(FAC)containing florigen Hd3a has been characterized.However,the molecular composition of the FAC that contains RFT1 for long-day flowering is unclear.We show here that RFT1 forms a ternary FAC with 14-3-3 proteins and OsFD1 to promote flowering under LDs.We identified a calcineurin B-like-interacting protein kinase,OsCIPK3,which directly interacts with and phosphorylates OsFD1,thereby facilitating the localization of the FAC to the nucleus.Mutation in OsCIPK3 results in a late heading date under LDs but a normal heading date under short-day conditions.Collectively,our results suggest that OsCIPK3 phosphorylates OsFD1 to promote RFT1-containing FAC formation and consequently induce flowering in rice under LDs.

关键词： rice heading date florigen activation complex OsCIPK3 phosphorylation

Coordinating gibberellin and brassinosteroid signaling beyond Green Revolution

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Journal of Genetics and Genomics 2023年第7期50卷 459-461页

作者： Hongning Tong Chengcai Chu National Key Facility for crop.Gene Resources and Genetic Improvement Institute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081China Guangdong Laboratory for Lingnan Modern Agriculture State Key Laboratory for Conservation and Utilization of Subtropical Agro-BioresourcesCollege of AgricultureSouth China Agricultural UniversityGuangzhouGuangdong 510642China

The Green Revolution,which took place in the 1960s,was instrumental in increasing grain yields and mitigating the world’s food crisis.Breeding semi-dwarfing crop. was a critical activity that significantly improved lodging resistance,field management,and harvesting convenience.Subsequent molecular genetic studies revealed that the semi-dwarfing genes used in rice and wheat,two major staple crop.,are related to the plant hormone gibberellin(GA).In rice,SD1 encodes a defective GA synthetic enzyme GA20ox-2,while in wheat,Rht-1(Rht-B1b or Rht-D1b)encodes the gain-of-function form of the GA signaling inhibitors known as DELLA proteins(Peng et al.,1999;Sasaki et al.,2002).However,defects in either GA synthesis or signaling can decrease nitrogen use efficiency(NUE)and potentially lead to inferior grain development.Ultimately,the success of the Green Revolution relies heavily on the massive input of nitrogen fertilizer,which causes severe environmental issues.

关键词： Wheat BR GA Green Revolution

Effects of Different Herbicides on Weed Control,Agronomic Characters and Grain Quality of Coix lacryma-jobi L.

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Plant Diseases and Pests 2022年第5期13卷 21-24页

作者： Maohong AO Zhiqin SONG Xiaoyu YANG institute of subtropical crop. Guizhou Academy of Agricultural SciencesXingyi 562400China institute of crop.Variety Resources Guizhou Academy of Agricultural SciencesGuiyang 550000China

[Objectives]The paper was to study the effects of different herbicides on weed control,agronomic characters and grain quality of Coix lacryma-jobi L.[Methods]Six commonly used herbicides were selected for the trial,including atrazine SC,butachlor SC,monosulfuron WP,MCPA-starane EC,clopyralid AS and tribenuron-methyl WP.[Results](i)Atrazine,butachlor and monosulfuron had no chemical injury to C.lacryma-jobi L.,while clopyralid caused slight chemical injury.(ii)The fresh weight control effects of atrazine,butachlor and monosulfuron on weeds increased first and then decreased.The initial control effect of MCPA-starane and clopyralid reached more than 90%;the control effect of monosulfuron increased gradually in the late stage,reaching 97%at 60 d post spraying,and the overall control effect was optimal.(iii)Compared with manual weeding,herbicides had no significant effect on plant height of C.lacryma-jobi L.However,compared with no weeding,other herbicides except tribenuron-methyl inhibited plant growth to a certain extent.Herbicides had different effects on main stem diameter,tiller number per plant and grain number per plant of C.lacryma-jobi L.(iv)Different herbicides had no significant effect on 100-grain weight,but had significant effect on yield.(v)Compared with manual weeding,atrazine,butachlor and clopyralid decreased the protein content of C.lacryma-jobi L.,and the use of atrazine,butachlor,monosulfuron,MCPA-starane and tribenuron-methyl decreased the fat content of C.lacryma-jobi L.;butachlor and MCPA-starane decreased the glycerol trioleate content of C.lacryma-jobi L.Compared with no weeding,chemical herbicides had no significant effect on the protein content,while atrazine decreased the fat content,and butachlor and MCPA-starane decreased the glycerol trioleate content of C.lacryma-jobi L.[Conclusions]The use of herbicides significantly increases crop.yield compared with no weeding,but has an impact on agronomic characters and grain quality.

关键词： Herbicide Coix lacryma-jobi L. Weed control Agronomic character Grain quality