Journal
BREEDING SCIENCE
Volume 69, Issue 1, Pages 40-46Publisher
JAPANESE SOC BREEDING
DOI: 10.1270/jsbbs.18080
Keywords
brown planthopper; fine mapping; resistance gene; molecular breeding
Categories
Funding
- National Natural Science Foundation of China [31460344]
- Guangxi Science and Technology Base and Special Talents [GuiKe AD17129064]
- Science-Technology Development Funding of Guangxi Academy of Agricultural Science [2015JZ18]
Ask authors/readers for more resources
The brown planthopper (BPH) is a serious insect pest of rice and a substantial threat to rice production. Identification of new BPH resistance genes and their transfer into modern rice cultivars are effective breeding approaches to reduce the damage caused by BPH. In this study, we mapped a BPH resistance gene to a 50-kb genomic interval between two InDel markers 4M03980 and 4M04041 on the short arm of chromosome 4 in indica rice cultivar BP60, where the BPH resistance gene was mapped in Rathu Hcenati by Liu et al. (2015) and named Bph3. This region contains two annotated genes Os04g0201900 and Os04g0202300, which encode lectin receptor kinases responsible for BPH resistance. We also developed a molecular marker MM28T for Bph3, and introgression Bph3 into susceptible rice restorer lines Guihui582 and Gui7571 by the marker-assisted selection (MAS) approach. The BPH resistance level is significantly enhanced in the Bph3-introgression lines, the resistance scores decrease from 8.2 to 3.6 for Guihui582 and decrease from 8.7 to around 3.8 for Gui7571. Therefore, developing molecular markers for the BPH resistance gene Bph3 and using them for molecular breeding will facilitate the creation of BPH-resistance rice cultivars to reduce damage caused by BPH.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available