Marker assisted pyramiding of Bph6 and Bph9 into elite restorer line 93-11 and development of functional marker for Bph9.

ABSTRACT: BACKGROUND:The brown planthopper (BPH) has become the most destructive and a serious threat to the rice production in Asia. Breeding the resistant varieties with improved host resistance is the most effective and ecosystem-friendly strategy of BPH biological management. As host resistance was always broken down by the presence of the upgrading BPH biotype, the more resistant varieties with novel resistance genes or pyramiding known identified BPH resistance genes would be needed urgently for higher resistant level and more durability of resistance. RESULTS:Here, we developed near isogenic lines of Bph9 (NIL-Bph9) by backcrossing elite cultivar 93-11 with Pokkali (harboring Bph9) using marker-assisted selection (MAS). Subsequently, we pyramided Bph6 and Bph9 in 93-11 genetic background thro

SUBMITTER: Wang Y 

PROVIDER: S-EPMC5745207 | biostudies-literature | 2017 Dec

REPOSITORIES: biostudies-literature