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History, current status, and prospects of soybean production and research in sub-Saharan Africa

The Crop Journal 2018年第3期6卷 226-235页

作者： Dalia Mohamedkheir Khojely Seifeldin Elrayah Ibrahim Enoch Sapey Tianfu Han MOA Key Lab of Soybean Biology (Beijing) Institute of Crop SciencesChinese Academy of Agricultural Sciences Gezira Research Station Agricultural Research Corporation (ARC) oil palm breeding and genetics CSIR-Oil Palm Research Institute

Soybean(Glycine max(L.) Merr.) is a non-native and non-staple crop in sub-Saharan Africa(SSA) with potential to be a commercial crop owing to its wide range of uses as food, feed,and industrial raw material. Soybean was first introduced to SSA by Chinese traders in the19 th century and was cultivated as an economic crop as early as 1903 in South Africa. In the past four decades, soybean cultivation area and production in SSA has increased exponentially, from about 20,000 ha and 13,000 t in the early 1970 s to 1,500,000 ha and2,300,000 t in 2016. Soybean yield has been stagnant in SSA for decades at about 1.1 t ha^(-1),much lower than the world average, representing one of the most challenging issues in the soybean industry in SSA. The low soybean yield in SSA can be attributed to the use of poorperforming varieties and to the limited application of fertilizers and rhizobial inoculants in soils with no history of soybean production. South Africa, Nigeria, Zambia, and Uganda are the leading soybean producers in SSA. Soybean research in SSA is conducted by international and national research institutions, including IITA, national soybean improvement programs, universities, and the private sector. Between 1970 and 2011, 195 soybean varieties were released by IITA, private breeders, and national soybean improvement programs in SSA. This paper reviews the history and current state of soybean production and of the utilization and adoption of tropical varieties in SSA, addresses the major soybean yield-limiting factors across the region, and discusses the potential of the soybean industry in SSA. It also highlights soybean improvement efforts and lessons learned from previous soybean improvement efforts and the current progress of some national soybean improvement programs in SSA. Opportunities for scaling up tropical soybean as a major crop across SSA countries are promising.

关键词： Soybean Sub-Saharan Africa(SSA) History Current status Prospects

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Fine mapping of a major QTL qHYF_B06 for peanut yield

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The Crop Journal 2023年第5期11卷 1533-1540页

作者： Yongqing Yang Qiao Su Yurong Li Zengshu Cheng Yahui Song Xinxin Jin Jin Wang Institute of Cereal and oil Crops Hebei Academy of Agricultural and Forestry Sciencesthe Key Laboratory of Crop Genetics and Breeding of HebeiShijiazhuang 050035HebeiChina

High yield is a major objective for peanut(Arachis hypogaea L.) breeding worldwide. However, fewer yield-related quantitative trait loci(QTL) have been reported in peanut than in other staple food crops such as rice(Oryza sativa), wheat(Triticum aestivum), and maize(Zea mays). This study aimed to identify stable major-effect QTL associated with pod yield per plant, hundred-pod weight for double-seeded pods,hundred-seed weight, shelling percentage, and pod number per plant, allowing us to predict candidate genes by means of transcriptome and genome sequencing. To this end, we used a population of recombinant inbred lines comprising 192 F9:11families derived from a JH6 × KX01-6 cross to construct a highresolution genetic map(1705.7 c M) consisting of 2273 polymorphic SNPs, with 0.75 c M(on average)between adjacent SNPs. We identified two high-confidence, yield-related QTL, qHYF_A08 and qHYF_B06, explaining 5.78%–31.40% of phenotypic variation and with LOD values of 5.10–24.48, in six environments. qHYF_A08 mainly explained the variation in shelling percentage, whereas qHYF_B06explained variation in hundred-pod weight and hundred-seed weight and accounted for 8.77%–31.40%of the variation in effective pod number per plant, pod number per plant, and shelling percentage. We narrowed down qHYF_B06 to an 890-kb interval using an advanced mapping *** and genome analyses revealed that only Arahy.129FS0 and Arahy.3R9A5K in the candidate mapping interval were differentially expressed between JH6 and KX01-6, with substantial structural variations in their promoter and coding regions. Genotypes of 208 peanut accessions determined using a diagnostic CAPS marker suggested that the two haplotypes of Arahy.3R9A5K were highly associated with hundred-seed weight and hundred-pod weight;this diagnostic CAPs marker could therefore be useful for selecting high-yielding lines during peanut breeding. Overall, our results provide valuable information for cloning alleles w

关键词： Arachis hypogaea Candidate gene E3 ubiquitin ligase Yield-related QTL region

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Mapping QTL for flowering time-related traits under three plant densities in maize

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The Crop Journal 2021年第2期9卷 372-379页

作者： Liwei Wang Zhiqiang Zhou Ronggai Li Jianfeng Weng Quanguo Zhang Xinghua Li Baoqiang Wang Wenying Zhang Wei Song Xinhai Li The Key Laboratory of Crop genetics and breeding of Hebei Province Institute of Cereal and Oil CropsHebei Academy of Agriculture and Forestry SciencesShijiazhuang 050035HebeiChina Institute of Crop Sciences Chinese Academy of Agricultural SciencesBeijing 100081China

Flowering time is an indicator of adaptation in maize and a key trait for selection in *** genetic basis of flowering time in maize,especially in response to plant density,remains *** objective of this study was to identify maize quantitative trait loci(QTL)associated with flowering time-related traits that are stably expressed under several plant densities and show additive effects that vary with plant *** hundred recombinant inbred lines(RIL)derived from a cross between Ye 478 and Qi 319,together with their parents,were planted at three plant densities(90,000,120,000,and 150,000 plants ha^(-1))in four *** five traits investigated were days to tasseling(DTT),days to silking(DTS),days to pollen shed(DTP),interval between anthesis and silking(ASI),and interval between tasseling and anthesis(TAI).A high-resolution bin map was used for QTL *** the RIL population,the DTT,DTS,and DTP values increased with plant density,whereas the ASI and TAI values showed negligible response to plant density.A total of 72 QTL were identified for flowering time-related traits,including 15 stably expressed across *** flowering time under different densities seems to be regulated by complex pathways rather than by several major genes or an independent *** effects of some stable QTL,especially qDTT8-1 and qDTT10-4,varied with plant *** mapping and cloning of these QTL will shed light on the mechanism of flowering time and assist in breeding earlymaturing maize inbred lines and hybrids.

关键词： Maize Flowering time Plant density Recombinant inbred lines(RIL) Genetic basis

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Identification of SSR Marker Linked to a Major Dwarfing Gene in Common Wheat

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Journal of Integrative Agriculture 2013年第5期12卷 749-755页

作者： MENG Ya-ning KANG Su-hua LAN Su-que LI Xing-pu ZHANG Ye-lun BAI Feng Institute of Cereal and oil Crops Hebei Academy of Agriculture and Forestry Sciences Hebei Research Station of Crop Gene Resource & Germplasm Enhancement Ministry of Agriculture/Key Laboratory of Genetics and Breeding of Hebei Province College of Life Science Hebei Normal University

A segregating population with 410 F2 individuals from the cross MERCIA （Rht-Bla）×Dwarf 123 was made to identify a new major dwarfing gene carrying by novel wheat germplasm Dwarf 123. Combination of bulk segerant analysis method was used. A total of 145 SSR markers were tested for polymorphisms among parental lines and DNA bulks of F2 population. Out of 145 primer pairs only three markers revealed corresponding polymorphism among parental lines and F2 DNA bulks. The marker Barc20 was close to the dwarfing gene with a genetic distance of 1.8 cM, and markers Gwm513 and Gwm495 were linked to the gene with genetic distance of 6.7 and 13 cM, respectively. Linkage analysis mapped the dwarfing gene to the long arm of chromosome 4B with the order of Barc20-dwarfing gene-Gwm513-Gwm495. The Comparision between the new gene and the known Rht-B1 alleles showed that dwarfing gene Rht-Ai123 was different from the others. The identification of the new dwarfing gene and its linked markers will greatly facilitate its utilization in wheat high yield breeding for reducing plant height.

关键词： chromosome dwarfing gene genetic distance linkage analysis molecular markers polymorphism Triticumaestivum L.

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Establishment of new convenient two-line system for hybrid production by targeting mutation of OPR3 in allopolyploid Brassica napus

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Horticulture Research 2023年第12期10卷 84-92页

作者： Hongtao Cheng Mengyu Hao Shifei Sang Yunfei Wen Yating Cai Hui Wang Wenxiang Wang Desheng Mei Qiong Hu Department of Rapeseed genetics and breeding Oil Crops Research Institute of Chinese Academy of Agricultural Sciences/Key Laboratory for Biological Sciences and Genetic Improvement of Oil CropsMinistry of Agriculture and Rural AffairsWuhan 430062China College of Life Sciences Henan Normal UniversityNo.46 Jianshe East RoadMuye DistrictXinxiangHenan453007China

The two-line pollination control system,which usually depends on the utilization of thermosensitive or photoperiod genic male-sterile lines,has been widely used in various ***,this system is susceptible to instability issues caused by uncontrollable weather fluctuations.A stable and handy two-line pollination control system is highly desirable in many crop species for heterosis *** acid reductase 3(OPR3)was proven to be involved in jasmonate *** the present study,CRISPR/Cas9(Clustered Regularly Interspaced Short Palindromic Repeat)was utilized to mutate two OPR3 homologs in Brassica *** two OPR3 homologs were simultaneously mutated,mutants exhibited complete male sterility,and fertility could be easily restored by exogenous MeJA *** produced from crosses between the opr3 sterile lines and normal varieties exhibited *** new two-line system based on OPR3 mutation provides higher stability and convenience than traditional *** using exogenous MeJA treatment to restore fertility,the system enables more precise control of male fertility transition,which has great potential to significantly contribute to the maneuverable production of hybrid seeds in rapeseed as well as other Brassica species crops.

关键词： CRISPR/Cas9 fertility sterile

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Soybean AP1 homologs control flowering time and plant height

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Journal of Integrative Plant Biology 2020年第12期62卷 1868-1879页

作者： Liyu Chen Haiyang Nan Lingping Kong Lin Yue Hui Yang Qingsong Zhao Chao Fang Haiyang Li Qun Cheng Sijia Lu Fanjiang Kong Baohui Liu Lidong Dong Innovative Center of Molecular genetics and Evolution School of Life SciencesGuangzhou UniversityGuangzhou 510006China The Key Laboratory of Crop genetics and breeding of Hebei Institute of Cereal and Oil CropsHebei Academy of Agricultural and ForestrySciencesShijiazhuang 050000China National Key Laboratory of Crop genetics and Germplasm Enhancement Jiangsu Collaborative Innovation Center for Modern CropProductionNanjing Agricultural UniversityNanjing 210000China The Innovative Academy of Seed Design Key Laboratory of Soybean Molecular Design BreedingNortheast Institute of Geography andAgroecologythe Chinese Academy of SciencesHarbin 150000China

Flowering time and plant height are key agronomic traits that directly affect soybean(Glycine max)***1(AP1)functions as a class A gene in the ABCE model for floral organ development,helping to specify carpel,stamen,petal,and sepal *** are four AP1 homologs in soybean,all of which are mainly expressed in the shoot ***,we used clustered regularly interspaced short palindromic repeats(CRISPR)–CRISPR-associated protein 9 technology to generate a homozygous quadruple mutant,gmap1,with loss-of-function mutations in all four GmAP1 *** short-day(SD)conditions,the gmap1 quadruple mutant exhibited delayed flowering,changes in flower morphology,and increased node number and internode length,resulting in plants that were taller than the wild ***,overexpression of GmAP1a resulted in early flowering and reduced plant height compared to the wild type under SD *** gmap1 mutant and the overexpression lines also exhibited altered expression of several genes related to flowering and gibberellic acid metabolism,thereby providing insight into the role of GmAP1 in the regulatory networks controlling flowering time and plant height in *** node number is the trait with the most promise for enhancing soybean pod number and grain ***,the mutant alleles of the four AP1 homologs described here will be invaluable for molecular breeding of improved soybean yield.

关键词： soybean breeding height

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Genome-wide identification,characterization and functional prediction of the SRS gene family in sesame(Sesamum indicum L.)

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oil Crop Science 2024年第2期9卷 69-80页

作者： Farjana Afroz Susmi Tasmina Islam Simi Md Nahid Hasan Md Abdur Rahim Department of genetics and Plant breeding Sher-e-Bangla Agricultural UniversityDhaka1207Bangladesh

Sesame(Sesamum indicum L.)is an ancient oilseed crop of the Pedaliaceae family with high oil content and potential health *** RELATED SEQUENCE(SRS)proteins are the transcription factors(TFs)specific to plants that contain RING-like zinc finger domain and are associated with the regulation of several physiological and biochemical *** also play vital roles in plant growth and development such as root formation,leaf development,floral development,hormone biosynthesis,signal transduction,and biotic and abiotic stress ***,the SRS gene family was not reported in sesame *** this study,identification,molecular characterization,phylogenetic relationship,cis-acting regulatory elements,protein-protein interaction,syntenic relationship,duplication events and expression pattern of SRS genes were analyzed in *** identified total six SiSRS genes on seven different linkage groups in the *** genome by comparing with the other species,including the model plant Arabidopsis *** SiSRS genes showed variation in their structure like2–5 exons and 1–4 *** other species,SiSRS proteins also contained‘RING-like zinc finger'and‘LRP1'***,the SiSRS genes were clustered into subclasses via phylogenetic analysis with proteins of ***,***,and some other plant *** cis-acting regulatory elements analysis revealed that the promoter region of SiSRS4(SIN_1011561)showed the highest 13 and 16 elements for light-and phytohormone-responses whereas,SiSRS1(SIN_1015187)showed the highest 15 elements for *** ABREs,or ABA-responsive elements,were found in a maximum of 8 copies in the SiSRS3(SIN 1009100).Moreover,the available RNA-seq based expression of SiSRS genes revealed variation in expression patterns between stress-treated and non-treated samples,especially in drought and salinity conditions *** SiSRS genes like SiSRS1(SIN_1015187)and SiSRS5(SIN_1021065),also exhibited variabl

关键词： SiSRS gene family SHI Transcription factor Characterization Sesamum indicum

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Evaluation of allergenic protein profiles in three Chinese high-oleic acid peanut cultivars using NanoLC-Orbitrap mass spectrometry

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Food Science and Human Wellness 2023年第3期12卷 851-860页

作者： Xinke Yang Haochen Bai Lijun Yin Jin Wang Wentong Xue Xin Jia College of Food Science and Nutritional Engineering Beijing Key Laboratory of Functional Food from Plant ResourcesChina Agricultural UniversityBeijing 100083China The Key Laboratory of Crop genetics and breeding Institute of Cereal and Oil CropsHebei Academy of Agricultural and Forestry SciencesShijiazhuang 050035China

High oleic-acid peanuts are known for their pre-longed shelf-life and health benefit due to high content of oleic fatty ***,the allergenicity and allergenic protein profiles in Chinese high-oleic peanuts have yet to be *** this purpose,an Orbitrap Fusion mass spectrometry(MS)-based method that is feasible for identification of putative allergenic protein as well as semi-quantitation of five major allergen protein in three different Chinese high-oleic peanut cultivars(JH 13,JH 16 and JH 18)have been *** show that three Chinese high-oleic acid peanut cultivars selected all contained highly allergenic proteins Ara h1,Ara h 2,Ara h 3 and Ara h *** allergenic protein profiles of Chinese high-oleic acid peanut cultivars were very similar to that of conventional peanuts,but the allergenic protein subunits varied greatly among higholeic ***,a comprehensive peptide-filtering pipeline had been developed for identification of potential peptide markers in peanut allergen *** the peptide-filtering pipeline,three novel peptide markers,IVQIEAKPNTLVLPK,SSNPDIYNPQAGSLR and AQSENYEYLAFK surrogate to Ara h 1,Ara h 3 with high abundance,good MS response and highly reliability were identified,which can be used as candidate peptide markers for the detection of peanut allergens in different food matrices.

关键词： Allergy High-oleic acid peanut Peptide-filtering pipeline NanoLC-Orbitrap mass spectrometry

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HBP1 inhibits chicken preadipocyte differentiation by activating the STAT3 signaling via directly enhancing JAK2 expression

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Journal of Integrative Agriculture 2022年第6期21卷 1740-1754页

作者： CHEN Hong-yan CHENG Bo-han MA Yan-yan ZHANG Qi LENG Li WANG Shou-zhi LI Hui Key Laboratory of Chicken genetics and breeding Ministry of Agriculture and Rural AffairsHarbin 150030P.R.China Key Laboratory of Animal genetics Breeding and ReproductionEducation Department of Heilongjiang ProvinceHarbin 150030P.R.China College of Animal Science and Technology Northeast Agricultural UniversityHarbin 150030P.R.China

Obesity presents a serious threat to human health and broiler *** expansion of adipose tissue is mainly regulated by the differentiation of *** differentiation of preadipocytes is a complex biological process regulated by a variety of transcription factors and signaling *** studies have shown that the transcription factor HMG-box protein 1(HBP1)can regulate the differentiation of mouse 3T3-L1 preadipocytes by activating the Wnt/β-catenin signaling ***,it is unclear whether HBP1 involved in chicken preadipocyte differentiation and which signaling pathways it *** aim of the current study was to explore the biological function and molecular regulatory mechanism of HBP1 in the differentiation of chicken *** expression patterns of chicken HBP1 in abdominal adipose tissue and during preadipocyte differentiation were analyzed by RT-qPCR and Western *** preadipocyte stably overexpressing HBP1 or knockout HBP1 and their control cell line were used to analyze the effect of HBP1 on preadipocyte differentiation by oil red O staining,RT-qPCR and Western *** 45-Pathway Reporter Array was used to screen the signal pathways that HBP1 regulates in the differentiation of chicken *** inhibitor and siRNA for signal transducer and activator of transcription 3(STAT3)were used to analyze the effect of STAT3 on preadipocyte *** preadipocyte stably overexpressing HBP1 was transfected by the siRNA of STAT3 or treated with a chemical inhibitor of STAT3 for the rescue *** results of gene expression analysis showed that the expression of HBP1 was related to abdominal fat deposition and preadipocyte differentiation in *** results of function gain and loss experiments indicated that overexpression/knockout of HBP1 in chicken preadipocytes could inhibit/promote(P<0.05)lipid droplet deposition and the expression of adipogenesis-related ***,HB

关键词： chicken HBP1 preadipocyte differentiation STAT3 signaling pathway

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Potential of plant growth-promoting rhizobacteria-plant interactions in mitigating salt stress for sustainable agriculture:A review

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Pedosphere 2022年第2期32卷 223-245页

作者： Kailash Chand KUMAWAT Sharon NAGPAL Poonam SHARMA Department of Microbiology Punjab Agricultural UniversityLudhianaPunjab 141004India Department of Plant breeding and genetics Punjab Agricultural UniversityLudhianaPunjab 141004India

Soil salinization affecting different crops is one of the serious threats to global food *** salinity affects 20%and 33%of the total cultivated and irrigated agricultural lands,respectively,and has been reported to caused a global crop production loss of 27.3 billion *** conventional approaches,such as using salt-tolerant varieties,saline soil scrapping,flushing,leaching,and adding supplements (e.g.,gypsum and lime),often fail to alleviate *** this context,developing diverse arrays of microbes enhancing crop productivity under saline soil conditions without harming soil health is *** advanced omics approaches have enabled gaining new insights into the structure and metabolic functions of plant-associated beneficial *** genera of salt-tolerating rhizobacteria ameliorating biotic and abiotic stresses have been isolated from different legumes,cereals,vegetables,and oil seeds under extreme alkaline and saline soil *** progress in rhizosphere microbiome research has revived the belief that plants may be more benefited from their association with interacting diverse microbial communities as compared with individual members in a *** the last decade,several salt-tolerating plant growth-promoting rhizobacteria (PGPR) that improve crop production under salt stress have been exploited for the reclamation of saline *** review highlights that the interaction of salt-tolerating microbes with plants improves crop productivity under salinity stress along with potential salt tolerance mechanisms involved and will open new avenues for capitalizing on cultivable diverse microbial communities to strengthen plant salt tolerance and,thus,to refine agricultural practices and production under saline conditions.

关键词： antagonistic activities antioxidant enzymes benefical microbes osmotolerance rhizosphere microbiome salt tolerance sustainable agriculture

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