Article
Agronomy
Yuheng Wu, Chenyu He, Changheng Sun, Xiangran Wang, Zhaoming Qi, Qingshan Chen, Mingzhe Zhao, Xindong Yao, Dayong Zhang
Summary: Understanding the genetic basis of leaf sucrose content can lead to improved soybean yields. This study used 190 chromosome fragment substitution lines (CSSLs) to identify related QTLs. Only one QTL with a high LOD score was detected among 3780 bin markers distributed in 20 chromosomes. Nine candidate genes were screened, and Glyma.14G029100 was identified as the key gene. Differences in the promoter and CDS sequences were found, leading to differences in relative transcriptional levels. These findings lay the groundwork for further research into the genetic mechanism of leaf sucrose content in soybeans.
Article
Biochemistry & Molecular Biology
Gustavo dos Santos Cotrim, Deivid Metzker da Silva, Jose Perez da Graca, Adilson de Oliveira Junior, Cesar de Castro, Guilherme Juliao Zocolo, Luciola Santos Lannes, Clara Beatriz Hoffmann-Campo
Summary: Potassium availability significantly impacts soybean metabolism, leading to changes in the composition of various metabolites in different tissues. The deficiency of potassium in soil can cause the accumulation of certain elements in soybean leaves, while potassium fertilization promotes the synthesis of carbohydrates, galactolipids, and flavonol glycosides in leaves and pod valves. In contrast, potassium-deficient pod tissues show increased contents of amino acids, oligosaccharides, benzoic acid derivatives, and isoflavones. The results also suggest that L-asparagine can be used as a biomarker for potassium deficiency in soybean plants.
Article
Plant Sciences
Siva K. Chamarthi, Avjinder S. Kaler, Hussein Abdel-Haleem, Felix B. Fritschi, Jason D. Gillman, Jeffery D. Ray, James R. Smith, Arun P. Dhanapal, Charles A. . King, Larry C. Purcell
Summary: This study identified 188 significant SNPs associated with canopy wilting in soybean, with 183 candidate genes identified near these SNPs. Genomic estimated breeding values (GEBVs) were found to have predictive ability for canopy wilting in different genotypes and environments. The candidate genes may play roles in plant stress responses, potentially affecting transpiration or water conservation.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Genetics & Heredity
Samantha McConaughy, Keenan Amundsen, Qijian Song, Vince Pantalone, David Hyten
Summary: Recombination allows for the exchange of genetic material between two parents, which can be used by plant breeders to improve cultivars. Recombination hotspots, which are clustered regions of crossovers, mainly occur in certain areas of the genome. Understanding the distribution and sequence motifs associated with these hotspots can help breeders effectively utilize recombination in breeding.
G3-GENES GENOMES GENETICS
(2023)
Article
Nutrition & Dietetics
Minhee Lee, Dakyung Kim, Hyunji Kim, Sukyung Jo, Ok-Kyung Kim, Jeongmin Lee
Summary: The study demonstrated that Glycine max (L.) Merr. fermented using Lactobacillus delbrueckii ssp. delbrueckii Rosell-187 (Gastro-AD (R)) can alleviate ethanol/HCl-induced gastric damage, with gastro-protective effects such as reducing gastric acid secretion, increasing prostaglandin E2 levels, and decreasing inflammatory factors levels.
Article
Biochemistry & Molecular Biology
Eguono W. Omagamre, Yeganeh Mansourian, Diamond Liles, Tigist Tolosa, Simon A. Zebelo, Joseph S. Pitula
Summary: This study investigated the impact of PFBA on soybean plants and found that it stimulated and inhibited plant growth. It also affected oxidative stress response and transcriptomic activity. The circadian rhythm and ethylene signaling pathway were found to be regulated in response to PFBA exposure. These findings suggest that PFBA induces stress in soybean plants, and the observed stimulation at 100 ng/L may represent an overcompensation response via the circadian rhythm pathway.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Plant Sciences
Xuanbo Zhong, Wei Hong, Yue Shu, Jianfei Li, Lulu Liu, Xiaoyang Chen, Faisal Islam, Weijun Zhou, Guixiang Tang
Summary: This study reported the characterization and function of GmHdz4, a HD-Zip I gene, in soybean response to drought stress. GmHdz4 was found to localize in the plant nucleus and display transcriptional activation activity, and its expression was induced by PEG-simulated drought stress. Editing of GmHdz4 using the CRISPR/Cas9 system was shown to enhance drought tolerance in soybean. These findings provide new insights for future molecular breeding research in soybean.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Agronomy
Gaston Quero, Sebastian Simondi, Sergio Ceretta, Alvaro Otero, Silvia Garaycochea, Schubert Fernandez, Omar Borsani, Victoria Bonnecarrere
Summary: In this study, elite germplasm of a locally adapted breeding population was used to estimate a yield stability index as an indicator of drought response. The study identified genomic regions and candidate genes associated with yield stability index and found seven QTL linked to drought tolerance.
Article
Agronomy
Samuel C. McDonald, James W. Buck, Zenglu Li
Summary: In this study, the researchers conducted fine-mapping analysis of the Frogeye leaf spot disease in soybean and identified a 1.15 Mb interval on chromosome 16 where the Rcs3 gene is located. The study also found that the Rcs3 gene was associated with resistance in the progeny derived from the hybridization of Davis and the susceptible cultivar Forrest. Ancestral analysis revealed that Davis and susceptible cultivars share the same haplotype at the Rcs3 locus. The study hypothesized that the resistance allele in Davis may have resulted from a mutation of a susceptibility allele. Tightly linked SNP markers identified in this research can be used for effective marker-assisted selection.
MOLECULAR BREEDING
(2023)
Article
Plant Sciences
Yuming Yang, Li Wang, Zhijun Che, Ruiyang Wang, Ruifang Cui, Huanqing Xu, Shanshan Chu, Yongqing Jiao, Hengyou Zhang, Deyue Yu, Dan Zhang
Summary: This study measured four representative chlorophyll fluorescence parameters of 219 diverse soybean accessions and analyzed the underlying genetic architecture, uncovering 17 QTLs associated with photosynthesis-related traits and nine candidate genes. These findings provide new targets for crop yield improvement by increasing photosynthesis efficiency.
JOURNAL OF PLANT PHYSIOLOGY
(2022)
Article
Biodiversity Conservation
Natalie Christian, Baldemar Espino Basurto, Amber Toussaint, Xinyan Xu, Elizabeth A. Ainsworth, Posy E. Busby, Katy D. Heath
Summary: Free-air CO2 enrichment experiments have shown the impact of climate change on plant physiology and production. Elevated CO2 levels were found to alter the composition of soybean leaf endophyte communities, leading to changes in interactions between bacteria and fungi. In vitro studies revealed that Methylobacterium had antagonistic effects on co-occurring fungal endophytes, particularly when well-established before fungal introduction.
GLOBAL CHANGE BIOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Zhengjie Chen, Wenjuan Zhong, Yonghang Zhou, Peicheng Ji, Yonglu Wan, Shengjia Shi, Zehu Yang, Yiyun Gong, Fangsheng Mu, Siwei Chen
Summary: This study compared the seed quality differences between vegetable soybean and grain soybean through metabolome and transcriptome analysis, and identified changes in metabolic pathways and gene expression, providing a better understanding of seed development and breeding improvements in vegetable soybean.
Article
Biochemistry & Molecular Biology
Kang-Heum Cho, Moon Young Kim, Hakyung Kwon, Xuefei Yang, Suk-Ha Lee
Summary: By using a mapping population derived from a cross between a salt-sensitive Korean cultivar and a salt-tolerant land-race, this study identified two novel major loci on chromosome 6 and 10 that control salt tolerance in soybean. These loci provide additional genetic resources for breeding soybean cultivars with enhanced salt tolerance.
Article
Biology
Noel Anthony Mano, Bethany Madore, Michael V. Mickelbart
Summary: The stomata on leaf surfaces control gas exchange and water loss, closing during dry periods to conserve water. The distribution and size of stomatal complexes is determined by epidermal cell differentiation and expansion during leaf growth. Regulation of these processes in response to water deficit may result in stomatal anatomical plasticity as part of the plant acclimation to drought.
Article
Plant Sciences
Natsume Koshika, Naohiro Shioya, Takashi Fujimura, Rina Oguchi, Chie Ota, Emi Kato, Reiko Takahashi, Shuichi Kimura, Shinsuke Furuno, Koichi Saito, Kazuhiro Okabe, Masanori Watanabe, Tomoki Hoshino
Summary: Induced mutation is an effective breeding strategy widely used in the development of elite plant varieties. In this study, a novel mutant population of soybeans was constructed using ethyl methanesulfonate to improve the variety of edamame. The TILLING method was employed to identify DNA mutations in the mutant populations, leading to the discovery of mutants with early flowering and harvest dates. These mutants can serve as DNA markers and are detectable using high-resolution melting analysis.
