Article
Biochemistry & Molecular Biology
Li Hu, Xianzhi Wang, Jiaoping Zhang, Liliana Florez-Palacios, Qijian Song, Guo-Liang Jiang
Summary: The study conducted a genome-wide association analysis on 323 soybean germplasm accessions and identified 72 quantitative trait loci associated with individual sugars and 14 with total sugar, as well as 10 candidate genes involved in sugar metabolism. This study advances our understanding of the genetic basis of soybean sugar composition and facilitates the identification of genes controlling this trait.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Plant Sciences
Shengyou Li, Yongqiang Cao, Changling Wang, Chunjuan Yan, Xugang Sun, Lijun Zhang, Wenbin Wang, Shuhong Song
Summary: In this study, a genome wide association study (GWAS) was conducted using a panel of 188 soybean germplasm to identify SNP markers and QTLs associated with yield-related traits. Several candidate genes were also predicted. These findings will facilitate the breeding of high-yield soybean cultivars.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Agronomy
Elzbieta Radzka, Katarzyna Rymuza, Andrzej Wysokinski
Summary: The research aimed to determine the nitrogen fixation and uptake by soybean at different densities under central European conditions. Results showed varying proportions of nitrogen uptake from the atmosphere, soil reserves, and mineral fertilizer, with residues and roots contributing nitrogen from all sources.
Article
Biochemistry & Molecular Biology
Hui-Yuan Zhang, Ze-Hao Hou, Yan Zhang, Zhi-Yong Li, Jun Chen, Yong-Bin Zhou, Ming Chen, Jin-Dong Fu, You-Zhi Ma, Hui Zhang, Zhao-Shi Xu
Summary: The soybean GmEF8 gene plays a positive role in regulating drought and heat stresses in Arabidopsis and soybean, and its overexpression enhances the plants' tolerance to these stresses.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Plant Sciences
Bishal G. Tamang, Song Li, Dhivyaa Rajasundaram, Suman Lamichhane, Takeshi Fukao
Summary: This study identified overlapping and stress-specific transcriptomic and hormonal responses in soybeans under submergence, drought, and recovery. The key overlapping mechanism for adaptation to both submergence and drought is an energy-saving strategy. Abscisic acid and ethylene are candidate hormones that coordinate transcriptomic energy-saving processes under both stresses, while auxin may be a signaling component for distinguishing submergence-specific regulation of the stress response.
Article
Agronomy
Lucas Felisberto Pereira, Walter Quadros Ribeiro Junior, Maria Lucrecia Gerosa Ramos, Guilherme Filgueiras Soares, Cristiane Andrea de Lima Guimaraes, Sebastiao Pedro da Silva Neto, Onno Muller, Christina Cleo Vinson, Andre Ferreira Pereira, Thomas Christopher Rhys Williams
Summary: This study evaluated the impact of incorporating a polymer into the soil on soybean yield and gas exchange, and found that the polymer could prolong soybean's photosynthetic activity and increase yield under moderate drought stress.
Article
Agronomy
Luiz H. Moro Rosso, Santiago Tamagno, Anelise L. da Silva, Adalgisa R. Torres, Rai A. Schwalbert, Ignacio A. Ciampitti
Summary: The study found that the base of the stem in soybean plants is a reliable fraction for quantifying ureide abundance, while the ureide content in upper leaflets is poorly correlated with values in the main stem. Additionally, the RAU trends in the upper petiole are similar to those in the base of the stem, but do not provide reliable RAU estimates.
EUROPEAN JOURNAL OF AGRONOMY
(2021)
Article
Biochemistry & Molecular Biology
Maria Martha Sainz, Carla Valeria Filippi, Guillermo Eastman, Jose Sotelo-Silveira, Omar Borsani, Mariana Sotelo-Silveira
Summary: Soybean plants establish symbiosis with rhizobacteria to perform biological nitrogen fixation (BNF). This study investigated the differential response of nodulated soybean plants to water-deficit stress and identified a greater number of differentially expressed genes (DEGs) under water deficit compared to nodulation condition. Additionally, the complete repertoire of thioredoxins (Trx) and glutaredoxins (Grx) in soybean was identified, and a network involving their interaction with nitrogen metabolism enzymes was revealed.
Article
Plant Sciences
Hui Jin, Xue Yang, Haibin Zhao, Xizhang Song, Yordan Dimitrov Tsvetkov, YuE Wu, Qiang Gao, Rui Zhang, Jumei Zhang
Summary: By resequencing, a total of 23 and 29 loci related to soybean seed protein and oil content were identified, explaining 3.4%-15.4% and 5.1%-16.3% of the phenotypic variations, respectively. In addition, nine candidate genes involved in protein and oil biosynthesis/metabolism were discovered. These findings can contribute to improving soybean protein and oil content.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Agronomy
Wentao Ding, Xiaoli Zhang, Dandan Liu, Chen Li, Congcong Wang, Ruidong Sun, Xiangpei Jin, Na Guo, Jinming Zhao, Han Xing
Summary: In this study, a Chinese soybean mini core collection was investigated to explore the genetic basis of plant architecture traits. A genome-wide association study identified 41 SNPs significantly associated with plant height, number of nodes, branch number, and stem diameter. Among these, 15 were located in previously reported QTL regions, while 26 were new genetic loci. Additionally, 18 potential candidate genes were identified for plant architecture traits based on the interval of four large-effect markers.
Article
Agronomy
Elzbieta Radzka, Katarzyna Rymuza, Andrzej Wysokinski
Summary: This study investigates the influence of weather conditions on the nitrogen uptake of soybean plants treated with two biostimulants, Asahi and Improver. The isotopic dilution method is used to measure the nitrogen fixed from the atmosphere, acquired from the soil, and taken up from fertilizers. Regression tree models reveal that the air temperature in July has a significant impact on nitrogen fixation from the atmosphere and nitrogen uptake from soil. The study emphasizes the importance of optimizing weather conditions for maximizing soybean nitrogen uptake.
Article
Agronomy
Daniele Caroline Horz Engel, Daniela Feltrim, Mayara Rodrigues, Joao Leonardo Corte Baptistella, Paulo Mazzafera
Summary: Algae extract biostimulants can enhance nutrient uptake, stress tolerance, and productivity in various crops. This study aimed to investigate the effect of a commercial Ascophyllum nodosum algae extract on nitrogen metabolism and productivity in nodulating soybean plants. The results showed that the application of algae extract increased leaf and stem biomass, pod and seed number and weight, and overall productivity. Biochemical analysis revealed an increase in amino acid content in leaves after extract application. Principal component analysis and gene expression heatmaps supported the conclusion that algae extract application affected nitrogen metabolism and led to higher seed production.
Article
Agronomy
Yanjun Zhang, Zhangxiong Liu, Xingrong Wang, Yue Li, Yongsheng Li, Zuowang Gou, Xingzhen Zhao, Huilong Hong, Honglei Ren, Xusheng Qi, Lijuan Qiu
Summary: In this study, the drought resistance of soybean seedlings was investigated through testing under drought conditions. Several drought resistance genes related to phenotypic traits were identified, including previously reported genes and a newly discovered gene. These findings lay the foundation for cloning and molecular marker-assisted selection of drought resistance genes in soybeans at the seedling stage.
Article
Agronomy
Yanjun Zhang, Zhangxiong Liu, Xingrong Wang, Yue Li, Yongsheng Li, Zuowang Gou, Xingzhen Zhao, Huilong Hong, Honglei Ren, Xusheng Qi, Lijuan Qiu
Summary: This study identified multiple QTL associated with drought resistance traits in soybean seedlings under drought conditions, as well as SNP variations in two populations. Non-synonymous stress-related mutation site differences between the two parents were discovered, along with a previously unreported gene related to drought stress. The findings provide a foundation for cloning and molecular marker-assisted selection of drought-resistance genes in soybeans at the seedling stage.
Article
Agriculture, Multidisciplinary
P. Braga, L. G. T. Crusiol, M. R. Nanni, A. L. H. Caranhato, M. B. Fuhrmann, A. L. Nepomuceno, N. Neumaier, J. R. B. Farias, A. Koltun, L. S. A. Goncalves, L. M. Mertz-Henning
Summary: The study aimed to develop techniques for fast determination of plant water status to aid in distinguishing soybean genotypes under water deficit conditions. Results showed that using VI and spectral bands could more effectively differentiate the water conditions to which the genotypes were submitted, in some cases even more sensitive than physiological measurements.
PRECISION AGRICULTURE
(2021)