Two decades of qtl mapping of isoflavone in soybean seed
Document Type
Book
Publication Date
1-10-2022
Abstract
In previous chapters, we summarized studies showing the variation of isoflavone contents in seeds, roots, leaves, and other parts depending on the genotype and environmental factors. This has allowed scientists to genetically map quantitative trait loci (QTL) that underlie seed isoflavone contents since 1999. In this chapter, we summarized over two decades (1999-2020) of QTL mapping of seed isoflavone in soybean. We also discussed candidate genes recently identified within several genomic regions harboring these QTL. Mapping the locations of genes involved in seed isoflavone biosynthesis helped soybean breeders to develop new cultivars with improved seed isoflavone through marker-assisted selection. For example, Sarkar et al. (Breed Sci:1-12, 2020) developed a mutant line F333ES017D9 containing the gene >Emphasis Type="Italic"/Emphasis< that boosted genistein-to-daidzein ratio. The candidate gene >Emphasis Type="Italic"/Emphasis< was also recently identified in chromosome 8 (Wu et al., Plant J 104:950-963, 2020). Therefore, using these approaches helps in developing soybean lines with high isoflavone contents.
Recommended Citation
Kassem, Moulay Abdelmajid, "Two decades of qtl mapping of isoflavone in soybean seed" (2022). College of Health, Science, and Technology. 235.
https://digitalcommons.uncfsu.edu/college_health_science_technology/235