Mapping of Quantitative Trait Loci Associated with Resistance to Brown Planthopper in Rice by Means of a Doubled Haploid Population

Soundararajan, R. P.; Kadirvel, P.; Gunathilagaraj, K.; Maheswaran, M.

doi:10.2135/cropsci2004.2214

Cited by 42 publications

(29 citation statements)

References 33 publications

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“…Traits involved in plant -insect interactions have previously been mapped; however, previous studies have focused on traits from one of the two species [18,19]. Plants interact with a plethora of above-and below-ground species, and it is possible that interacting individuals reciprocally respond to each other over ecological time [9].…”

Section: Discussion (A) Phenotypic Effect Of Environmental Factorsmentioning

confidence: 99%

Quantitative trait loci mapping of phenotypic plasticity and genotype–environment interactions in plant and insect performance

Tétard‐Jones

Kertesz

Preziosi

2011

Phil. Trans. R. Soc. B

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Community genetic studies generally ignore the plasticity of the functional traits through which the effect is passed from individuals to the associated community. However, the ability of organisms to be phenotypically plastic allows them to rapidly adapt to changing environments and plasticity is commonly observed across all taxa. Owing to the fitness benefits of phenotypic plasticity, evolutionary biologists are interested in its genetic basis, which could explain how phenotypic plasticity is involved in the evolution of species interactions. Two current ideas exist: (i) phenotypic plasticity is caused by environmentally sensitive loci associated with a phenotype; (ii) phenotypic plasticity is caused by regulatory genes that simply influence the plasticity of a phenotype. Here, we designed a quantitative trait loci (QTL) mapping experiment to locate QTL on the barley genome associated with barley performance when the environment varies in the presence of aphids, and the composition of the rhizosphere. We simultaneously mapped aphid performance across variable rhizosphere environments. We mapped main effects, QTL Â environment interaction (QTLÂE), and phenotypic plasticity (measured as the difference in mean trait values) for barley and aphid performance onto the barley genome using an interval mapping procedure. We found that QTL associated with phenotypic plasticity were co-located with main effect QTL and QTLÂE. We also located phenotypic plasticity QTL that were located separately from main effect QTL. These results support both of the current ideas of how phenotypic plasticity is genetically based and provide an initial insight into the functional genetic basis of how phenotypically plastic traits may still be important sources of community genetic effects.

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Section: Discussion (A) Phenotypic Effect Of Environmental Factorsmentioning

confidence: 99%

Quantitative trait loci mapping of phenotypic plasticity and genotype–environment interactions in plant and insect performance

Tétard‐Jones

Kertesz

Preziosi

2011

Phil. Trans. R. Soc. B

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“…Su et al (2002) detected QTLs on chromosomes 2, 10, and 12 using a Nipponbare × Kasalath backcross population. Soundararajan et al (2004) used a DH population (IR64 × Azucena) and detected six QTLs on chromosomes 1, 2, 6, and 7 for BPH resistance by applying RAPD and RFLP markers. Of these, QTLs on chromosome 7 showed association with seedling resistance and QTLs on chromosome 2 with antibiosis, whereas QTLs on chromosomes 1, 6, and 7 were associated with tolerance.…”

Section: Qtls Associated With Bph Resistancementioning

confidence: 99%

Current Status of Brown Planthopper (BPH) Resistance and Genetics

Jena¹,

Kim²

2010

Rice

181

119

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Among the planthoppers of rice, the brown planthopper (BPH) is a major threat to rice production and causes significant yield loss annually. Host-plant resistance is an important strategy to reduce the damage caused by BPH and increase rice productivity. Twenty-one major genes for BPH resistance have been identified by using standard evaluation methods developed at the International Rice Research Institute (IRRI) to distinguish resistance or susceptibility of rice genotypes to BPH biotypes/populations. These genes are from diverse genetic resources such as land race cultivars and wild species of Oryza. Of the 21 resistance genes, 18 genes have been localized on specific region of six rice chromosomes using molecular genetic analysis and genomics tools. Some of these resistance genes are clustered together such as Bph1, bph2, Bph9, Bph10, Bph18, and Bph21 on the long arm of chromosome 12; Bph12, Bph15, Bph17 and Bph20 on the short arm of chromosome 4; bph11 and Bph14 on the long arm of chromosome 3 and Bph13(t) and bph19 on the short arm of chromosome 3. Six genes (Bph11, bph11, Bph12, bph12, Bph13 and Bph13) originated from wild Oryza species have either duplicate chromosome locations or wrong nomenclature. The discrepancy should be confirmed by allelism tests. Besides identification of major resistance genes, some quantitative trait loci (QTLs) associated with BPH resistance have also been identified on eight chromosomes. Most of the rice cultivars developed at IRRI possess one or two of the major resistance genes and the variety IR64 has many QTLs and confers strong resistance to BPH. More BPH resistance genes need to be identified from the wealth of gene pool available in the wild species of Oryza. Two BPH resistance genes (Bph14 and Bph18) have been cloned, and a snow drop lectin gene (GNA) has been identified and used in the development of BPH-resistant transgenic plants. Efficient introgression of resistance genes (Bph1, bph2, Bph3, Bph14, Bph15, Bph18, Bph20, and Bph21) into elite rice cultivars by marker-assisted selection together with strategic deployment of these genes can be an important approach to develop stable resistance to BPH and sustain rice production in the tropical and temperate rice growing regions.

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“…Three resistance genes, designated as Bph12, Bph15 and Bph17 from O. officinalis, O. latifolia and Rathu Heenati, respectively, were mapped in one particular region of chromosome 4 5,15 . A recessive gene, bph4, from Babawee and O. rufipogon and two QTLs from IR64 and Teqing were reported in the same genomic location on the short arm of chromosome 6 1, 16,26 . The result obtained from our work was also mapped the resistance genes from different donors in the same region on chromosome 6 near the bph4 locus 16 .…”

Section: Discussionmentioning

confidence: 97%

Untitled

Jairin¹,

Teangdeerith²,

Leelagu³

et al. 2007

ScienceAsia

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Three rice mapping populations of 208 BC 1 F 2 , 333 BC 3 F 2 and 335 F 2 lines derived from crosses of PTB33 × RD6, Rathu Heenati × KDML105 and IR71033-121-15 × KDML105, respectively, were used to detect brown planthopper (BPH) resistance genes. The modified mass tiller screening (MMTS) method was applied to evaluate the BPH resistance of all mapping population lines at the tillering stage. The BPH resistance genes detected from the BC 1 F 2 , BC 3 F 2 and F 2 populations were mapped in the same genomic region on the short arm of chromosome 6. The tightly linked markers RM589 and RM586 could explain 59.8%, 28.2% and 57.4 % of the phenotypic variance of the BPH resistance from the BC 1 F 2 , F 2 and BC 3 F 2 , respectively. The tightly linked SSR markers identified from this study should be useful in marker-assisted breeding to produce BPH resistant cultivars.

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Mapping of Quantitative Trait Loci Associated with Resistance to Brown Planthopper in Rice by Means of a Doubled Haploid Population

Cited by 42 publications

References 33 publications

Quantitative trait loci mapping of phenotypic plasticity and genotype–environment interactions in plant and insect performance

Quantitative trait loci mapping of phenotypic plasticity and genotype–environment interactions in plant and insect performance

Current Status of Brown Planthopper (BPH) Resistance and Genetics

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