Reference "Detection and analysis of QTL for resistance to the brown planthopper, Nilaparvata lugens (Stal), in rice (Oryza sativa L.), using backcross inbred lines"

Reference ID

6843

Title

Detection and analysis of QTL for resistance to the brown planthopper, Nilaparvata lugens (Stal), in rice (Oryza sativa L.), using backcross inbred lines

Source

Acta genetica Sinica, 2002, vol. 29, pp. 332-338

Authors (4)

Su-C-C	Cheng-X-N
Zhai-H-Q	Wan-J-M

Abstract

A mapping population of 98 BC1F9 lines (backcross inbred lines: BILs), derived
from a backcross of Nipponbare (japonica)/Kasalath (indica)//Nipponbare by the
single-seed descent methods, was used to detect quantitative trait loci (QTL)
for resistance to brown planthopper (BPH), Nilaparvata lugens (Stal). Seedbox
Screening Technique (SST) was applied to evaluate the reactions of two parents
and 98 BILs to BPH at the seedling stage, and the entries were graded on ratio
of dead seedlings. A total of three QTL controlling BPH resistance were detected
on chromosomes 2, 10 and 12, respectively. Individual QTL accounted for between
10.4% and 16.6% of the phenotypic variance, and the resistance of all the three
QTL came from Kasalath, the moderate resistance parent. These QTL should be
useful in breeding of varieties resistant to BPH in marker-assisted selection
(MAS) program.