Role of conventional and molecular techniques in soybean yield and quality improvement: A critical review

Abstract

The soybean is one of the most significant legume crops around the globe and serves as a source of dietary components for humans and animals. It has a higher percentage of protein compared to any other crop. Soybean yield and quality have been affected by many environmental factors. The genetic mechanism of yield and quality is still not clearly understood. Hence there is still a need to investigate the major potent factors to shed light on the mechanism behind yield and quality traits in soybean. Recently, a lot of significant work, including novel QTL, genes, and CRISPR-based genome editing in soybeans, has been done, which opened new doors of hope. The current review has presented detailed work done previously. We have also discussed the role of different breeding techniques in the conventional way of soybean improvement. The genetic factors regulating yield, quality, and disease resistance could be further cloned and transferred into elite cultivars to attain higher output in the current situation of changing environment. The integrated use of several techniques, like CRISPR/Cas9, next-generation sequencing, omics approaches, would be a fruitful way to improve soybean yield and quality. Besides this, hybridization, mass selection, pure line selection, backcross breeding, and pedigree selection should be adopted to develop novel soybean cultivars. This review concluded that soybean yield and quality improvement could be enhanced by exploring its genetic mechanism using several molecular and conventional methods.

The intervention of classical and molecular breeding approaches to enhance flooding stress tolerance in soybean – An review

“…Flooding stress greatly affected the yield of major crops comprising soybean ( Jo et al., 2022 ), rice ( Kumar et al., 2021 ), and wheat ( Winkel et al., 2017 ). Soybean is a significant legume crop grown worldwide for food, production of biofuel, and various other products due to its oil and protein contents ( Valliyodan et al., 2017 ; Yuhong et al., 2021 ; Rasheed et al., 2022 ). Flooding stress reduces relative water content, chlorophyll contents, stomatal conductance, and carotenoid contents, as well as the activity of antioxidant enzymes in plants ( Yang et al., 2011 ).…”

Current Strategies and Future of Mutation Breeding in Soybean Improvement

“…Available genotypes and technical infrastructure (agricultural machines, greenhouses, and experienced stuff) as well as breeding objective are deciding factors in method selection. Breeding objectives generally depend on the local agroecological conditions, available acreage, production intensity, market demand, and economical value [11][12][13].…”