Abstract
Salt stress is one of the major abiotic factors affecting crop growth and production. In general, soybean is sensitive to salt stress. The success of soybean improvement for salt tolerance depends on discovery and utilization of genetic variation in the germplasm. In this chapter, advance in salt-tolerant research and breeding was summarized by highlighting the genetic diversity, quantitative trait loci (QTL), identification of the major locus (Glyma03g32900), and improvement of soybean varieties in salt tolerance. The ion exclusion and tissue tolerance mechanisms regulated by this major locus are discussed. In addition, genomic resources and high-throughput phenotyping platforms that can facilitate a better understanding of phenotype-genotype association and formulate genomic-assisted breeding strategies are prospected.
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Abbreviations
- CAX:
-
Cation exchanger
- GWAS:
-
Genome-wide association studies
- MAS:
-
Marker-assisted selection
- NGS:
-
Next-generation sequencing (NGS)
- NHX:
-
Na+/H+ antiporter
- QTL:
-
Quantitative trait loci
- QTN:
-
Quantitative trait nucleotides
- SNP:
-
Single nucleotide polymorphism
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Acknowledgments
This chapter is a joint contribution from the University of Missouri (MU), USA, and Jiangsu Academy of Agricultural Sciences (JAAS), China. We thank JAAS for Huatao Chen visiting scholarship at MU.
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Chen, H. et al. (2018). Advances in Genetics and Breeding of Salt Tolerance in Soybean. In: Kumar, V., Wani, S., Suprasanna, P., Tran, LS. (eds) Salinity Responses and Tolerance in Plants, Volume 2. Springer, Cham. https://doi.org/10.1007/978-3-319-90318-7_9
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