scholarly journals Demographic Parameters of Long-term Laboratory Strains of the Brown Planthopper, Nilaparvata lugens Stål, (Homoptera: Delphacidae) on Resistance Genes, bph20(t) and Bph21(t) in Rice

10.5109/14053 ◽  
2009 ◽  
Vol 54 (1) ◽  
pp. 159-164
Author(s):  
Khin Khin Marlar Myint ◽  
Masaya Matsumura ◽  
Masami Takagi ◽  
Hideshi Yasui
Keyword(s):  
Resistance Genes ◽  
Brown Planthopper ◽  
Nilaparvata Lugens ◽  
Demographic Parameters ◽  
Nilaparvata Lugens Stål

Feeding responses of the brown planthopper, Nilaparvata lugens (Stål) (Hemiptera: Delphacidae), to resistant and susceptible host-plants

1989 ◽  
Vol 79 (2) ◽  
pp. 309-318 ◽  
Author(s):  
D. E. Padgham ◽  
S. Woodhead ◽  
H. R. Rapusas
Keyword(s):  
Resistance Genes ◽  
Host Plants ◽  
Brown Planthopper ◽  
Nilaparvata Lugens ◽  
Resistance Mechanisms ◽  
Population Development ◽  
Rice Varieties ◽  
Susceptible Host ◽  
Insect Activity ◽  
Nilaparvata Lugens Stål

AbstractThe feeding responses, growth and population development of Nilaparvata lugens (Stål) are quantified on a range of twelve susceptible or resistant host-plants. Paris of rice varieties carrying the Bph1, bph2 and Bph3 resistance genes are compared as hosts for N. lugens, and it is concluded that such notations do not adequately describe the diversity of plant resistance mechanisms. Evidence is presented for resistance mechanisms involving enhanced insect activity and gustatory responses to unacceptable phloem.

scholarly journals The Development and Characterization of Near-Isogenic and Pyramided Lines Carrying Resistance Genes to Brown Planthopper with the Genetic Background of Japonica Rice (Oryza sativa L.)

Plants ◽  
2019 ◽  
Vol 8 (11) ◽  
pp. 498
Author(s):  
Cuong D. Nguyen ◽  
Holden Verdeprado ◽  
Demeter Zita ◽  
Sachiyo Sanada-Morimura ◽  
Masaya Matsumura ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Resistance Genes ◽  
Genetic Background ◽  
Oryza Sativa L ◽  
Rice Variety ◽  
Brown Planthopper ◽  
Nilaparvata Lugens ◽  
Japonica Rice ◽  
Rice Varieties ◽  
Nilaparvata Lugens Stål

The brown planthopper (BPH: Nilaparvata lugens Stål.) is a major pest of rice, Oryza sativa, in Asia. Host plant resistance has tremendous potential to reduce the damage caused to rice by the planthopper. However, the effectiveness of resistance genes varies spatially and temporally according to BPH virulence. Understanding patterns in BPH virulence against resistance genes is necessary to efficiently and sustainably deploy resistant rice varieties. To survey BPH virulence patterns, seven near-isogenic lines (NILs), each with a single BPH resistance gene (BPH2-NIL, BPH3-NIL, BPH17-NIL, BPH20-NIL, BPH21-NIL, BPH32-NIL and BPH17-ptb-NIL) and fifteen pyramided lines (PYLs) carrying multiple resistance genes were developed with the genetic background of the japonica rice variety, Taichung 65 (T65), and assessed for resistance levels against two BPH populations (Hadano-66 and Koshi-2013 collected in Japan in 1966 and 2013, respectively). Many of the NILs and PYLs were resistant against the Hadano-66 population but were less effective against the Koshi-2013 population. Among PYLs, BPH20+BPH32-PYL and BPH2+BPH3+BPH17-PYL granted relatively high BPH resistance against Koshi-2013. The NILs and PYLs developed in this research will be useful to monitor BPH virulence prior to deploying resistant rice varieties and improve rice’s resistance to BPH in the context of regionally increasing levels of virulence.

scholarly journals Nitrogenous Fertilizer Reduces Resistance but Enhances Tolerance to the Brown Planthopper in Fast-Growing, Moderately Resistant Rice

Insects ◽  
2021 ◽  
Vol 12 (11) ◽  
pp. 989
Author(s):  
Finbarr G. Horgan ◽  
Thais Fernanda S. de Freitas ◽  
Eduardo Crisol-Martínez ◽  
Enrique A. Mundaca ◽  
Carmencita C. Bernal
Keyword(s):  
Resistance Genes ◽  
Soil Nitrogen ◽  
Brown Planthopper ◽  
Nilaparvata Lugens ◽  
Plant Tolerance ◽  
Fast Growing ◽  
Resistant Varieties ◽  
Loss Index ◽  
Nilaparvata Lugens Stål ◽  
Moderate Resistance

The brown planthopper, Nilaparvata lugens (Stål), is a key challenge to rice production in Asia. Outbreaks of planthoppers are associated with excessive fertilizer applications; consequently, we examined planthopper interactions with susceptible, tolerant and resistant varieties of rice under varying levels of soil nitrogen in a greenhouse experiment. We compared planthopper fitness (survival × reproduction) and plant tolerance (functional plant loss index) for 16 varieties at 0, 80 and 150 Kg added nitrogen ha−1. The planthoppers grew larger, developed more quickly and laid more eggs on susceptible varieties, compared with the resistant and tolerant varieties. Moreover, soil nitrogen generally increased planthopper fitness on resistant varieties, but relative resistance was maintained. Functional plant loss was highest among the susceptible varieties, but weight and growth rate reductions per mg of planthopper were often highest in the tolerant varieties. Tolerance was associated with large, fast-growing plants, with at least moderate resistance to the planthopper. Susceptibility was associated with a small size and/or an absence of resistance genes. Our results suggested that early-tillering rice plants can be both resistant and tolerant to the brown planthopper, but cannot be both susceptible and tolerant of planthoppers at high densities. This indicates that at least moderate resistance is required for tolerance against this herbivore. Furthermore, although dwarf varieties had a low tolerance of planthoppers, they could express resistance through functioning resistance genes.

scholarly journals Conventional and Molecular Studies of Brown Planthopper (Nilaparvata lugens Stal) Resistance Genes in Rice: A Basis for Future Study of Natural Insect Resistance Genes Using Molecular Markers in Nepal

2015 ◽  
Vol 15 (1) ◽  
pp. 145-156 ◽  
Author(s):  
Prem N. Sharma ◽  
Naoki Mori ◽  
Shigeo Takumi ◽  
Chiharu Nakamura
Keyword(s):  
Molecular Markers ◽  
Insect Resistance ◽  
Resistance Genes ◽  
Insect Pests ◽  
Insect Pest ◽  
Durable Resistance ◽  
Brown Planthopper ◽  
Nilaparvata Lugens ◽  
Monogenic Resistance ◽  
Nilaparvata Lugens Stål

Rice productivity is greatly affected by various biotic and abiotic stresses. Insect-pests are one of the major bioticconstraints to cause significant losses in rice production. Brown planthopper (BPH), Nilaparvata lugens Stål, isthe most serious insect-pest of rice in Asia where most of the world rice is produced. Controlling insects usingchemicals is already proven detrimental not only to environment but also to human health. Integrated PestManagement (IPM) is the best approach to control insect pests. Host plant resistance is the principal componentof IPM along with biological, cultural and physical methods. Use of varietal resistance is the best option to controlBPH. Many BPH resistant rice varieties with natural BPH resistance have been developed and widely used againstBPH. However, frequent breakdown of monogenic resistance by new BPH biotypes has been a serious threat tocontrol BPH. To overcome such difficulty in the use of monogenic resistance, development of durable resistanceis needed as the sustainable means to control BPH. To develop durable resistance, pyramiding of BPH resistancegenes and quantitative trait loci (QTLs), through marker-assisted method, is needed. For this, many BPH resistancegenes and QTLs have already been identified and mapped on rice chromosomes. This article reviews identification,mapping and pyramiding toward successful cloning of BPH resistance genes/QTLs and provides the basis/guidelines to work on natural insect resistance genes using molecular markers in Nepal.DOI: http://dx.doi.org/10.3126/njst.v15i1.12032Nepal Journal of Science and TechnologyVol. 15, No.1 (2014) 145-156

scholarly journals Determination of brown planthopper resistant genes in some rice varieties by molecular markers

2016 ◽  
Vol 14 (2) ◽  
pp. 261-269
Author(s):  
Nguyễn Thị Kim Liên ◽  
Nguyễn Huy Hoàng ◽  
Lê Bắc Việt ◽  
Phan Thị Bích Thu ◽  
Nguyễn Huy Chung
Keyword(s):  
Molecular Markers ◽  
Resistance Genes ◽  
Brown Planthopper ◽  
Nilaparvata Lugens ◽  
Rice Varieties ◽  
Genomic Platform ◽  
The One ◽  
Nilaparvata Lugens Stål ◽  
Brown Plant Hopper

Brown plant hopper (Nilaparvata lugens Stal.) is the one of dangerous pests for rice that were reported in most of rice growing countries. Twenty seven BPH resistance genes have been detected in cultivated and wild rice. However, each resistance gene is able to resist with only strain or certain biotype. Besides, many studies indicated that the toxicity of BPH strains tend to change and loss the resistance of rice lines. The breeding of rice varieties that resist to many BPH biotypes is being the breeders towards. With helping of the development of molecular markers and genetic engineering, the breeders are hopping to identify the molecular markers that linked tightly with BPH resistance genes and develop the rice varieties can gather many resistance genes in a well genomic platform. In this study, we assessed the resistance of rice lines of Vietnam and imported rice lines. The resistance was ditermined by using assessement method in the galvanized box and molecular markers linkage with resistance genes (Bph1, bph2, Bph3, Bph9 and Bph17). The results showed that there was a high affinity between the two methods with 70.59% and 86.27% of lines that have the resistance (respectively). Among of 51 surveyed rice lines, 44 lines (86.27%) were determined to have at least one marker linkage with resistance genes. 19 lines (37.25%) harbored two or three markers linkage with resistance genes. These lines will be a good genetic resource for screening and breeding the resistant rice varieties.

Marker-assisted pyramiding of brown planthopper (Nilaparvata lugens Stål) resistance genes Bph1 and Bph2 on rice chromosome 12

Hereditas ◽  
2004 ◽  
Vol 140 (1) ◽  
pp. 61-69 ◽  
Author(s):  
PREM N. SHARMA ◽  
AKIHIDE TORII ◽  
SHIGEO TAKUMI ◽  
NAOKI MORI ◽  
CHIHARU NAKAMURA
Keyword(s):  
Resistance Genes ◽  
Brown Planthopper ◽  
Rice Chromosome ◽  
Nilaparvata Lugens ◽  
Chromosome 12 ◽  
Nilaparvata Lugens Stål
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