A new locus for resistance to brown planthopper identified in the indica rice variety DV85

C. C. Su, J. Wan, H. Q. Zhai, C. M. Wang, L. H. Sun, H. Yasui, A. Yoshimura

研究成果: Contribution to journalArticle査読

21 被引用数 (Scopus)

抄録

The brown planthopper (BPH) is one of the most destructive insect pests of rice. Resistant varieties have proved to be one of the most economic and effective measures for BPH management. In this study, an indica rice 'DV85' showed resistance to biotype 2 of BPH by bulked seedling test, and a recombinant inbred line (RIL) population derived from a cross between a susceptible rice 'Kinmaze' and 'DV85' was phenotyped to map genetic factors conferring BPH resistance in 'DV85'. Composite interval mapping revealed that one quantitative trait locus (QTL) with a LOD score of 10.1 was detected between XNpb202 and C1172 on chromosome 11. This QTL was designated as Qbph11. Qbph11 explained 68.4% of the phenotypic variance of BPH resistance in this population. The allele from the resistant parent 'DV85' at Qbph11 reduced the damage caused by BPH feeding and would be very useful in breeding resistant rice varieties via marker-assisted selection.

本文言語英語
ページ(範囲)93-95
ページ数3
ジャーナルPlant Breeding
124
1
DOI
出版ステータス出版済み - 2 2005

All Science Journal Classification (ASJC) codes

  • Agronomy and Crop Science
  • Genetics
  • Plant Science

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