ABSTRACT

Advances in the drought and heat resistance of soybean Heng Ye, Babu Valliyodan, Li Song, J. Grover Shannon, Pengyin Chen and Henry T. Nguyen, University of Missouri, USA

1 Introduction

2 Drought resistance traits: introduction, root system architectures and anatomy

3 Other traits for drought resistance and heat tolerance

4 Genomic resources and strategies

5 Advance in breeding for drought and heat resistance

6 Conclusions and future perspectives

7 Acknowledgements

8 References

Climate changes increase the occurrence of extreme weather patterns including irregular precipitation, higher temperature and the consequent drought and heat stresses in the global agricultural areas, which can cause significant reduction in crop production and threaten food security (Lesk et al., 2016). Yield losses of major crops under irregular weather patterns keep increasing, despite of the progressive increase in yield through breeding and management practices since the 1960s (Boyer, 2013; Rosenzweig et al., 2014; Lobell et al., 2014). It has been estimated that under the current warming scenarios crop yields would decline 30-82% by the end of the century, despite of increasing concentration of CO2 benefiting photosynthesis (Hatfield et al., 2011).