Article
Plant Sciences
Kayla S. Flyckt, Keith Roesler, Kristin Haug Collet, Luciano Jaureguy, Russ Booth, Shawn R. Thatcher, John D. Everard, Kevin G. Ripp, Zhan-Bin Liu, Bo Shen, Laura L. Wayne
Summary: Improving the protein and oil components of soybean seeds can increase the value of the crop and enhance sustainability. By modifying the DGAT1b gene in soybeans, researchers have successfully increased oil content. The GmDGAT1b-3aa variant, with three novel amino acid substitutions, showed promising results in terms of increasing total soybean oil content.
PLANT AND CELL PHYSIOLOGY
(2023)
Article
Plant Sciences
Cassio Hamilton Abreu-Junior, Gabriel Asa Correa Gruberger, Paulo Henrique Silveira Cardoso, Paula Wellen Barbosa Goncalves, Thiago Assis Rodrigues Nogueira, Gian Franco Capra, Arun Dilipkumar Jani
Summary: Biological nitrogen fixation in soybean can be enhanced by treating the seeds with cobalt (Co) and molybdenum (Mo) before planting. This study aimed to determine if Co and Mo application during the reproductive phase of soybean increases seed Co and Mo concentration without negatively affecting seed quality. Two experiments were conducted, one investigating foliar and soil application of Co and Mo, and the other validating the results. The results showed that foliar application was more effective in enriching the seed with Co and Mo, and higher Co doses resulted in higher concentrations of Co and Mo in the seed. Applying these micronutrients did not have adverse effects on the nutrition, development, quality, and yield of parent plants and seed, and the treated seed showed improved germination, vigor, and uniformity for soybean seedling development. Based on these findings, it was concluded that foliar application of 20 g ha(-1) Co and 800 g ha(-1) Mo during the reproductive stage of soybean can increase germination rate and promote optimal growth and vigor of enriched seed.
Article
Plant Sciences
Joao M. Kafer, Mayla D. C. Molinari, Fernando A. Henning, Alessandra Koltun, Viviani V. Marques, Silvana R. R. Marin, Alexandre L. Nepomuceno, Liliane M. Mertz-Henning
Summary: This study aimed to identify genes associated with soybean seed quality by comparing the transcriptomes of soybean seeds with different seed coat colors. Through RNA-seq analysis and validation with real-time PCR, 318 differentially expressed genes were found in all cultivars. These genes are involved in pathways related to ethylene, lipid, brassinosteroid, lignin, and sulfur amino acid biosynthesis.
Article
Plant Sciences
Christina E. Fliege, Russell A. Ward, Pamela Vogel, Hanh Nguyen, Truyen Quach, Ming Guo, Joao Paulo Gomes Viana, Lucas Borges Santos, James E. Specht, Tom E. Clemente, Matthew E. Hudson, Brian W. Diers
Summary: Soybean is the most important source of protein meal globally, with the quantitative trait loci (QTL) cqSeed protein-003 on chromosome 20 exhibiting the highest additive effect among all protein QTLs in this crop. Through genetic mapping and candidate gene downregulation, the insertion/deletion variant in Glyma.20G85100 is identified as the likely gene underlying this significant QTL.
Article
Biochemistry & Molecular Biology
Nazrul Islam, Hari B. Krishnan, Savithiry S. Natarajan
Summary: In a fast neutron radiated mutant soybean, gene duplication resulted in an increase in seed protein content, particularly in storage proteins and protease inhibitors.
Article
Biochemistry & Molecular Biology
Haowei Zheng, Duo Zhao, Wentao Shao, Yun Lu, Wenhui Wang, Yanjiao Hu, Jiajia Li, Shangshang Zhu, Xiaobo Wang
Summary: The GmWRI1c transcription factor plays a crucial role in regulating soybean oil content and nodulation. By modulating the proportion of palmitic acid, GmWRI1c can increase the number of root nodules. Natural variations in the GmWRI1c promoter region are closely associated with seed oil content and the transcript level of GmWRI1c.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Plant Sciences
Larissa Chamma, Gustavo Ferreira da Silva, Samara Moreira Perissato, Cleonei Alievi, Prinscilla Pamela Nunes Chaves, Valeria Cristina Retameiro Giandoni, Juliano Carlos Calonego, Edvaldo Aparecido Amaral da Silva
Summary: Herbicides with desiccant actions can be used to anticipate soybean seed harvesting, but they may compromise the acquisition of seed quality components, especially longevity. This research aimed to evaluate the physiological quality of soybean seeds subjected to forced maturation with desiccants. The results indicate that the application of herbicide with desiccant action interrupts the process of acquiring seed physiological quality, especially longevity in soybean seeds.
Article
Biochemistry & Molecular Biology
Yuchen Zhang, Qingyu Wang, Yajing Liu, Shuo Dong, Yongqiang Zhang, Youcheng Zhu, Yu Tian, Jingwen Li, Zhuoyi Wang, Ying Wang, Fan Yan
Summary: Genetically modifying soybeans to increase the content of the sulfur-containing amino acid methionine can improve the nutritional quality of soybean protein.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
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
Biotechnology & Applied Microbiology
Cintia Lucia Arias, Truyen Quach, Tu Huynh, Hanh Nguyen, Ademar Moretti, Yu Shi, Ming Guo, Amira Rasoul, Kyujung Van, Leah McHale, Tom Elmo Clemente, Ana Paula Alonso, Chi Zhang
Summary: This study evaluated the metabolic and transcriptional responses to the expression of AtWRI1 and AtDGAT1 in soybean seeds. The results showed that the expression of these genes did not increase the total fatty acid content, but led to changes in the oil and carbohydrate composition. Transcriptomic analysis revealed down-regulation of oil body packaging protein genes and strong induction of lipase and FA biosynthesis inhibitor genes.
PLANT BIOTECHNOLOGY JOURNAL
(2022)
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
Agronomy
Shibi Zhang, Kwadwo Gyapong Agyenim-Boateng, Shengrui Zhang, Yongzhe Gu, Jie Qi, Muhammad Azam, Caiyou Ma, Yecheng Li, Yue Feng, Yitian Liu, Jing Li, Bin Li, Lijuan Qiu, Junming Sun
Summary: This study investigated the genetic basis of tocopherol content in soybean. QTL mapping identified 38 QTL for tocopherol, with stable QTL identified on Chromosomes 5 and 12. This study provides insights into the genetic mechanisms underlying tocopherol content in soybean, which is important for breeding high tocopherol soybean cultivars.
Article
Plant Sciences
Lin Zhao, Xin Wei, Tao Zheng, Ya-Nan Gou, Jun Wang, Jian-Xin Deng, Mei-Jia Li
Summary: This study collected soybean seeds with serious symptoms of rotted pods from a farm in Hubei Province, China. Fusarium strains were isolated from the seeds and two Fusarium species were identified. The strains from the Fusarium fujikuroi species complex showed higher pathogenicity on soybean seeds, roots, and pods compared to the strains from the Fusarium incarnatum-equiseti species complex. F. proliferatum YZU 201408 was found to be the most pathogenic strain, causing disease severity of 72.2% to 90% in all tests.
Article
Plant Sciences
Xujun Fu, Jian Wang, Tengwei Shangguan, Rong Wu, Sujuan Li, Guang Chen, Shengchun Xu
Summary: Study reveals that SMXL genes in soybeans play important roles in drought and salt stress responses during seed germination. The signaling pathways and regulatory genes involved in this process have also been identified.
PLANT GROWTH REGULATION
(2022)
Article
Agronomy
Felipe Fadel Sartori, Thaise Dieminger Engroff, Thais H. Godoy Sanches, Julia M. Soave, Mila Victorio Pessotto, Guilherme Felisberto, Valter E. Hilgemberg Jr, Andre Froes de Borja Reis, Mariangela Hungria, Marco A. Nogueira, David de Souza Jaccoud-Filho, Fernando Dini Andreote, Durval Dourado-Neto
Summary: Biological nitrogen fixation is essential for the development of soybean plants, but management decisions such as pesticide use and timing of Bradyrhizobium sp. inoculation can negatively impact soybean growth and yield. This study evaluates the effects of pre-inoculating soybean seeds with Bradyrhizobium sp. and pesticides seed treatment on biological nitrogen fixation under laboratory, greenhouse, and field conditions. The results show that both pre-inoculation and pesticide seed treatment can reduce the recovery of Bradyrhizobium colonies, ureides concentration, biological nitrogen fixation efficiency, and plant growth. Field experiments also demonstrate that specific pesticides can cause significant yield loss and that inoculation closer to sowing can lead to higher grain weight.
EUROPEAN JOURNAL OF AGRONOMY
(2023)