Database Research Summaries
2018 Genetic Dissection of Yield Related Traits for Soybean Breeding

calendar_today Year of Research: 2018
update Posted On: 12/04/2019
group Jianxin Ma (Principal Investigator, Purdue University)
bookmark Indiana Soybean Alliance

Research Focus

The focus of this project is to incorporate these genes into elite soybean cultivars for enhanced
and long-lasting resistance against P. sojae.


  • Introgress the genomic regions carrying Rps11, RpsUN3, Rps1-das, and Rps2-
    das into the elite cultivars, including two Purdue cultivars and two Illinois cultivars.
  • Develop Rps11, RpsUN3, Rps1-das, and Rps2-das isogenic lines using Williams
    as recurrent parental lines in backcrosses with the donor lines of these four genes.
  • Determine if Rps1-k, RpsUN1, and Rps1-das, and Rps2, RpsUN2, and Rps2-das
    in the two resistance gene clusters are different genes by allelic test.
  • Pyramid more than one of the four novel genes and the two known genes into
    same elite cultivars.


The results will be added upon completion of the project.


This research will work towards creating new soybean elite lines with more durable resistance, as valuable pre-breeding resources for development of high yielding and resistant soybean cultivars.

For more information about this research project, please visit the National Soybean Checkoff Research Database.

Funded in part by the soybean checkoff.