Genetic basis of multiple resistance to the brown planthopper (Nilaparvata lugens stål) and the green rice leafhopper (nephotettix cincticeps uhler) in the rice cultivar ‘ASD7’ (oryza sativa L. ssp. indica)

Tan Van Mai, Daisuke Fujita, Masaya Matsumura, Atsushi Yoshimura, Hideshi Yasui

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

The rice cultivar ASD7 (Oryza sativa L. ssp. indica) is resistant to the brown planthopper (BPH; Nilaparvata lugens Stål) and the green leafhopper (Nephotettix virescens Distant). Here, we analyzed multiple genetic resistance to BPH and the green rice leafhopper (GRH; Nephotettix cincticeps Uhler). Using two independent F2 populations derived from a cross between ASD7 and Taichung 65 (Oryza sativa ssp. japonica), we detected two QTLs (qBPH6 and qBPH12) for resistance to BPH and one QTL (qGRH5) for resistance to GRH. Linkage analysis in BC2F3 populations revealed that qBPH12 controlled resistance to BPH and co-segregated with SSR markers RM28466 and RM7376 in plants homozygous for the ASD7 allele at qBPH6 Plants homozygous for the ASD7 alleles at both QTLs showed a much faster antibiosis response to BPH than plants homozygous at only one of these QTLs. It revealed that epistatic interaction between qBPH6 and qBPH12 is the basis of resistance to BPH in ASD7 In addition, qGRH5 controlled resistance to GRH and co-segregated with SSR markers RM6082 and RM3381. qGRH5 is identical to GRH1 Thus, we clarified the genetic basis of multiple resistance of ASD7 to BPH and GRH.

Original languageEnglish
Pages (from-to)420-429
Number of pages10
JournalBreeding Science
Volume65
Issue number5
DOIs
Publication statusPublished - Dec 19 2015

All Science Journal Classification (ASJC) codes

  • Agronomy and Crop Science
  • Genetics
  • Plant Science

Fingerprint

Dive into the research topics of 'Genetic basis of multiple resistance to the brown planthopper (Nilaparvata lugens stål) and the green rice leafhopper (nephotettix cincticeps uhler) in the rice cultivar ‘ASD7’ (oryza sativa L. ssp. indica)'. Together they form a unique fingerprint.

Cite this