Difference between revisions of "Bph27"
(Created page with " == Mapping ==") |
(→Mapping) |
||
| Line 1: | Line 1: | ||
| + | |||
| + | |||
| + | == Background == | ||
| + | The brown planthopper (Nilaparvata lugens Stål; BPH) is one of the most hazardous rice pests in the world. Growing resistant varieties is the most active way to deal with this insect, and wild rice species are a valuable source of resistance genes for developing resistant cultivars. BPH27 derived from an accession of Guangxi wild rice, Oryza rufipogon Griff. (Accession no. 2183, hereafter named GX2183), was primarily mapped to a 17-cM region on the long arm of the chromosome four. Furthermore, fine mapping of BPH27 was conducted using two BC1F2 populations derived from introgression lines of GX2183. Insect resistance was assessed in the BC1F2 populations with 6,010 individual off springs, and 346 resistance extremes were obtained and employed for fine mapping of BPH27. High-resolution linkage analysis discover the BPH27 locus to an 86.3-kb region in Nipponbare. | ||
| + | |||
| + | == Damage caused by brown planthopper== | ||
| + | [[File:]] | ||
| + | |||
| + | |||
== Mapping == | == Mapping == | ||
Revision as of 07:12, 9 June 2014
Background
The brown planthopper (Nilaparvata lugens Stål; BPH) is one of the most hazardous rice pests in the world. Growing resistant varieties is the most active way to deal with this insect, and wild rice species are a valuable source of resistance genes for developing resistant cultivars. BPH27 derived from an accession of Guangxi wild rice, Oryza rufipogon Griff. (Accession no. 2183, hereafter named GX2183), was primarily mapped to a 17-cM region on the long arm of the chromosome four. Furthermore, fine mapping of BPH27 was conducted using two BC1F2 populations derived from introgression lines of GX2183. Insect resistance was assessed in the BC1F2 populations with 6,010 individual off springs, and 346 resistance extremes were obtained and employed for fine mapping of BPH27. High-resolution linkage analysis discover the BPH27 locus to an 86.3-kb region in Nipponbare.
Damage caused by brown planthopper
[[File:]]
