Evaluation of Brown Plant Hopper Nilaparvata Lugens (Stal.) Resistance

Anant, Aashish Kumar; Guru, Plrasanna Pandi G; Chandrakar, Gajendra; Gowda, B. J.; Patil, N. M.; Annamalai, Muthukkaruppan; Adak, Totan; Rath, Prakash Chandra; Jena, Mayabini

doi:10.5958/0974-8172.2021.00065.1

Cited by 3 publications

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“…The chemical control and use of resistant/tolerant varieties are the most e cient methods of pest management in different rice growing areas (Anant et al 2021a;Horgan et al 2021). But unfortunately, continuous and high doses of insecticide lead to insecticidal resistance as well as resurgence in the N. lugens population.…”

Section: Introductionmentioning

confidence: 99%

Genetic analysis of brown planthopper, Nilaparvata lugens (Stål.) (Hemiptera: Delphacidae) based on DNA markers

Babu

Pandi

Parameswaran

et al. 2023

Preprint

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Brown planthopper, Nilaparvata lugens (Stål.) is one of the most ruinous pest of rice in south-east Asia. This insect had the tendency to express differential reaction to resistant rice cultivars and various insecticide groups in different geographic locations. Therefore, genetic diversity among the N. lugens populations is required to be understood for their effective management. Hence, in the present study, genetic structure and genetic diversity of 22 N. lugens populations collected from 22 hotspot regions of India were studied with genomic simple sequence repeats (NlSSR) markers. Results revealed that mean genetic diversity was 0.399 and polymorphic information content (PIC) was 0.337 in the 30 selected SSR markers. Further, molecular variance (AMOVA) revealed only 2% variation among population and 98% within the populations. In cluster and population structure analysis, all the 22 population were sub-grouped into three groups. Interestingly, north and west Indian population showed high genetic similarity and assembled into one cluster in cluster analysis. The east and south Indian populations were evenly segregated into rest two clusters. Similarly, north and west Indian population again deemed to be occupied same compartment in Principal coordinate analysis (PCoA). This variation might be associated with the N. lugens migration due to wind movement of south-west monsoon in two branches viz. Arabian sea branch and Bay of Bengal branch. Present study provides the molecular evidence of population genetics of N. lugens in India and the information could be useful to devise the efficient management strategy against this pest in different rice ecosystem.

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Section: Introductionmentioning

confidence: 99%

Genetic analysis of brown planthopper, Nilaparvata lugens (Stål.) (Hemiptera: Delphacidae) based on DNA markers

Babu

Pandi

Parameswaran

et al. 2023

Preprint

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“…More than 39 resistant genes, or QTLs, have been discovered and successfully utilized in breeding programs of resistant varietal development. However, the changing pests' biotypes, climatic conditions, and narrow genetic bases of the varieties have led to the breakdown of the resistance [10][11][12]. This has raised the serious necessity to screen more germplasm, including wild accessions, for a safe and durable resistance source [13].…”

Section: Introductionmentioning

confidence: 99%

Biochemical Defense Responses in Red Rice Genotypes Possessing Differential Resistance to Brown Planthopper, Nilaparvata lugens (Stål)

Pati

Jena

Bhattacharya

et al. 2023

Insects

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The brown planthopper [Nilaparvata lugens (Stål.)] is one of the most destructive insect pests in all the rice-growing regions of the world. The pest is complicated to manage through the blanket application of chemical pesticides. The development of stable, durable N. lugens-resistant rice varieties is the most economical and efficient strategy to manage the pest. Landraces of red rice genotypes possess numerous nutritional and stress-resistant properties, though an exclusive study on the same is yet to be carried out. In the present study, we evaluated 28 red rice genotypes, along with two resistance checks and one susceptibility check, for their resistance to N. lugens. These promising lines revealed differential responses in the defense mechanism against the pest. The resistant accessions showed a greater accumulation of phenols, peroxidase, polyphenol oxidase, catalase, and superoxide dismutase under N. lugens-stressed conditions. However, the concentration of soluble proteins was substantially decreased in all the test genotypes. The concentration of crude silica was at maximum in highly resistant genotypes. Six red rice genotypes, namely Mata Meher, Manipuri Black, Hermonona, Sonahanan, Bavdi, and Bacharya Khuta fall under the highly resistant category, and can be utilized as valuable sources of resistance in breeding programs.

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Genomic dissection of brown planthopper, Nilaparvata lugens (Hemiptera: Delphacidae) resistance in Indica rice genotypes

Meher,

Guru‐Pirasanna‐Pandi,

Babu

et al. 2024

Annals of Applied Biology

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The population growth and the regular breakout of Nilaparvata lugens pose a significant risk to rice cultivation. Four different N. lugens biotypes have been identified worldwide, with biotype 4 being the most destructive and prevalent throughout Asia, particularly in India. Therefore, a rice variety with multiple resistance genes/alleles is required for effective management of N. lugens. Hence, 191 rice genotypes collected from various parts of India were evaluated for resistance to N. lugens. Further, SSR markers representing 23 different N. lugens resistant (R) genes were assayed to identify genomic regions associated with resistance. The results of the genetic analysis showed that the average genetic diversity value of all markers was 0.165 and polymorphic information content of 0.145 for all the markers used. The population structure and cluster analysis divided the studied genotypes into three distinct groups, with resistant genotypes grouped separately. These findings were confirmed by the principal coordinate analysis, which categorized resistant genotypes, moderately resistant genotypes, and susceptible genotypes into distinct components. Additionally, 90% of the genetic variation was between individuals of populations and 10% between the populations. Marker‐trait association study through mixed linear model and generalized linear model identified six SSR markers such as RM6732 (Bph15), RM314 (Bph6), RM16999 (Bph6), RM7 (QBph3), RM401 (bph4), and RM7102 (Bph1), which were significantly associated with various phenotypic parameters, such as feeding mark, honeydew excretion, percent damage and nymphal survival. The resistant genes identified in these genotypes could help in the marker‐assisted rice variety development with durable resistance against N. lugens.

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Evaluation of Brown Plant Hopper Nilaparvata Lugens (Stal.) Resistance

Cited by 3 publications

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Genetic analysis of brown planthopper, Nilaparvata lugens (Stål.) (Hemiptera: Delphacidae) based on DNA markers

Genetic analysis of brown planthopper, Nilaparvata lugens (Stål.) (Hemiptera: Delphacidae) based on DNA markers

Biochemical Defense Responses in Red Rice Genotypes Possessing Differential Resistance to Brown Planthopper, Nilaparvata lugens (Stål)

Genomic dissection of brown planthopper, Nilaparvata lugens (Hemiptera: Delphacidae) resistance in Indica rice genotypes

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