Fine mapping of GRH3 conferring resistance to green rice leafhopper in rice (Oryza sativa L.)

Hur, Yeon-Jae; Cho, Jun Hyeon; Lee, Ji Yun; Sohn, Young-Bo; Park, Soo-Kwon; Lee, Bong-Choon; Cho, Jaemin; Kim, Sang Yeol; Song, You Chun; Park, Dong-Soo; Nam, Min‐Hee; Lee, Jong Hee

doi:10.1007/s11032-015-0262-0

Cited by 4 publications

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References 17 publications

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“…A total of six genes and two QTLs conferring GRH resistance have been identified and mapped on seven rice chromosomes using O. sativa landraces and other Oryza species. The resistance genes include Grh1 on chromosome 5 derived from IR24, Pe-bi-hun, Singwang, and ASD7 (Kadowaki et al 2003, Mai et al 2015, Park et al 2013, Tamura et al 1999; Grh2 on chromosome 11 and Grh4 on chromosome 3 from Lepe-dumai and DV85 (Fukuta et al 1998, Kadowaki et al 2003; and Grh3 on chromosome 6 from Rantaj-emas 2 and Cheongnam (Hur et al 2015, Saka et al 2006. One major gene conferring GRH resistance from the Surinam cultivar SML17 and another one from a wild accession of Oryza nivara were mapped on the short arm of chromosome 4 and named Grh6 (Tamura et al 2004) and Grh6-nivara (Fujita et al 2004), respectively.…”

Section: Glh-resistant Accessions Of the Wild Species Oryza Barthiimentioning

confidence: 99%

Four resistance alleles derived from Oryza longistaminata (A. Chev. & Roehrich) against green rice leafhopper, Nephotettix cincticeps (Uhler) identified using novel introgression lines

et al. 2019

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The green rice leafhopper (GRH, Nephotettix cincticeps Uhler) is a serious insect pest of rice (Oryza sativa L.) in temperate regions of Asia. Wild Oryza species are the main source of resistance to insects. The W1413 accession of African wild rice (O. longistaminata A. Chev. & Roehrich) is resistant to GRH. To analyze its resistance, we developed 28 BC 3 F 3 introgression lines carrying W1413 segments in the genetic background of Nipponbare, a susceptible rice cultivar, and evaluated their GRH resistance. Five BC 3 F 3 populations were used for quantitative trait locus (QTL) analysis and seven BC 3 F 4 populations for QTL validation. Four significant QTLs on the long arm of chromosome 2 (qGRH2), short arm of chromosome 4 (qGRH4), short arm of chromosome 5 (qGRH5), and long arm of chromosome 11 (qGRH11) were identified. The contribution of the W1413 allele at qGRH11 was the largest among the four QTLs; the other QTLs also contributed to GRH resistance. Chromosomal locations suggested that qGRH11 corresponds to the previously reported GRH resistance gene Grh2, qGRH4 to Grh6, and qGRH5 to Grh1. qGRH2 is a novel QTL for resistance to GRH. Thus, resistance of O. longistaminata to GRH can be explained by at least four QTLs.

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