Genetic basis of ovicidal response to whitebacked planthopper (Sogatella furcifera Horváth) in rice (Oryza sativa L.)

Masanori Yamasaki, Atsushi Yoshimura, Hideshi Yasui

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

Rice (Oryza sativa L.) ovicidal response to the whitebacked planthopper (Sogatella furcifera Horváth) is characterized by formation of watery lesions and production of an ovicidal substance benzyl benzoate, which results in high egg mortality of whitebacked planthopper. A gene with ovicidal activity to whitebacked planthopper, designated Ovc, and four ovicidal quantitative trait loci (QTLs), qOVA-1-3, qOVA-4, qOVA-5-1 and qOVA-5-2 were identified using near isogenic lines with reciprocal genetic backgrounds of a non-ovicidal Indica variety IR24 and an ovicidal Japonica variety Asominori. Ovc and the four QTLs were mapped on chromosomes 6, 1, 4, 5 and 5, respectively. Ovc is the first gene identified that kills insect eggs in plants. The Asominori allele at Ovc was essential for increasing egg mortality and responsible for production of benzyl benzoate and formation of watery lesions. The Asominori alleles at qOVA-1-3, qOVA-5-1 and qOVA-5-2 increased egg mortality in the presence of Ovc. In contrast, the Asominori allele at qOVA-4 suppressed egg mortality, indicating that qOVA-4 caused transgressive segregation for egg mortality. It was concluded that Ovc and four ovicidal QTLs accounted for the majority of the phenotypic variance for the ovicidal response to whitebacked planthopper in Asominori.

Original languageEnglish
Pages (from-to)133-143
Number of pages11
JournalMolecular Breeding
Volume12
Issue number2
DOIs
Publication statusPublished - Sep 1 2003

Fingerprint

Sogatella furcifera
Ovum
Oryza sativa
Quantitative Trait Loci
rice
Mortality
benzyl benzoate
quantitative trait loci
lesions (plant)
Alleles
alleles
insect eggs
Chromosomes, Human, Pair 6
transgressive segregation
Chromosomes, Human, Pair 1
isogenic lines
phenotypic variation
genetic background
Eggs
Genes

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Molecular Biology
  • Agronomy and Crop Science
  • Genetics
  • Plant Science

Cite this

Genetic basis of ovicidal response to whitebacked planthopper (Sogatella furcifera Horváth) in rice (Oryza sativa L.). / Yamasaki, Masanori; Yoshimura, Atsushi; Yasui, Hideshi.

In: Molecular Breeding, Vol. 12, No. 2, 01.09.2003, p. 133-143.

Research output: Contribution to journalArticle

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