What Are The Advantages And Disadvantages Of Soybean

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Soybean is an important crop, with food, nutritional, industrial, and pharmaceutical uses. Soybean seeds contain about 40% protein and about 20% oil. They are also abundant in physiologically active metabolites such as isoflavones, lecithins, tocopherols and saponins, in addition to functional proteins and are used as an affordable source of foods that promote and maintain health (Sugano 2005).
The genomic era is now under way for soybean, as for other many crops. Recently, a soybean genomics database has been developed from the whole genome sequence (Schmutz et al. 2010), and a large number of genomic, transcriptional, and functional annotated sequences can be retrieved from Phytozome In addition to efforts to sequence the whole genome, several
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2006, Herman et al. 2003, Nishizawa et al. 2010).


Insect and nematode resistance
Insecticidal crystal proteins (cry proteins or δ-endotoxins) are an active component of Bacillus thuringiensis(Bt) toxin, a biological insecticide (Tabashnik 1994). Expression of the Bt cry gene in soybean has proven highly effective for controlling insect pests , and the resistance to lepidopteran pests in a transgenic line expressing Bt cry1A was confirmed under field conditions
Disease resistance
Soybean mosaic virus (SMV) is endemic in virtually all regions where soybeans are grown in the presence of vector insects. SMV can cause serious yield losses (Ross 1969), so virus resistance is an essential trait for introduction
Abiotic stress tolerance
Drought stress is one of the major environmental limitations on crop production. Transgenic soybean expressing P5CR, encoding l-Δ1-pyrroline-5-carboxylate reductase, which catalyzes the final step in proline biosynthesis, under the control of an inducible heat shock promoter was more tolerant to drought and high temperature than non-transgenic plants (De Ronde et al. 2004a,
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