Welcome To Website IAS

Hot news

Independence Award

- First Rank - Second Rank - Third Rank

Labour Award

- First Rank - Second Rank -Third Rank

National Award

 - Study on food stuff for animal(2005)

 - Study on rice breeding for export and domestic consumption(2005)


- Hybrid Maize by Single Cross V2002 (2003)

- Tomato Grafting to Manage Ralstonia Disease(2005)

- Cassava variety KM140(2010)

Website links
Vietnamese calendar
Visitors summary
 Curently online :  3
 Total visitors :  7710255

Genome-wide association study and genomic prediction for resistance to brown planthopper in rice
Sunday, 2024/06/02 | 06:29:42

Cong ZhouWeihua JiangJianping GuoLili ZhuLijiang LiuShengyi LiuRongzhi ChenBo DuJin Huang

Front Plant Sci.; 2024 Mar 21: 15:1373081.doi: 10.3389/fpls.2024.1373081.


The brown planthopper (BPH) is the most destructive insect pest that threatens rice production globally. Developing rice varieties incorporating BPH-resistant genes has proven to be an effective control measure against BPH. In this study, we assessed the resistance of a core collection consisting of 502 rice germplasms by evaluating resistance scores, weight gain rates and honeydew excretions. A total of 117 rice varieties (23.31%) exhibited resistance to BPH. Genome-wide association studies (GWAS) were performed on both the entire panel of 502 rice varieties and its subspecies, and 6 loci were significantly associated with resistance scores (P value < 1.0e-8). Within these loci, we identified eight candidate genes encoding receptor-like protein kinase (RLK), nucleotide-binding and leucine-rich repeat (NB-LRR), or LRR proteins. Two loci had not been detected in previous study and were entirely novel. Furthermore, we evaluated the predictive ability of genomic selection for resistance to BPH. The results revealed that the highest prediction accuracy for BPH resistance reached 0.633. As expected, the prediction accuracy increased progressively with an increasing number of SNPs, and a total of 6.7K SNPs displayed comparable accuracy to 268K SNPs. Among various statistical models tested, the random forest model exhibited superior predictive accuracy. Moreover, increasing the size of training population improved prediction accuracy; however, there was no significant difference in prediction accuracy between a training population size of 737 and 1179. Additionally, when there existed close genetic relatedness between the training and validation populations, higher prediction accuracies were observed compared to scenarios when they were genetically distant. These findings provide valuable resistance candidate genes and germplasm resources and are crucial for the application of genomic selection for breeding durable BPH-resistant rice varieties.


See https://pubmed.ncbi.nlm.nih.gov/38576786/


Figure 4. Manhattan plot and Quantile-Quantile (QQ) plot of RS to BPH of 502 rice varieties (A), indica (B), japonica (C) and circum-aus (D). The density of SNPs are labeled below the chromosomes. The p-value threshold for significance is 1.0×10-8.

Back      Print      View: 73

[ Other News ]___________________________________________________
  • Auxin depletion from leaf primordia contributes to organ patterning
  • Phytochrome controls alternative splicing to mediate light responses in Arabidopsis
  • Maternal temperature history activates Flowering Locus T in fruits to control progeny dormancy according to time of year
  • Identification and evaluation of quantitative trait loci underlying resistance to multiple HG types of soybean cyst nematode in soybean PI 437655
  • Factor analytic mixed models for the provision of grower information from national crop variety testing programs
  • Exploring the areas of applicability of whole genome prediction methods for Asian rice (Oryza sativa L.)
  • Investigation of terpene diversification across multiple sequenced plant genomes
  • Arabidopsis ribosomal proteins control vacuole trafficking and developmental programs through the regulation of lipid metabolism
  • Effect of the ahas Transgene on Biological Nitrogen Fixation and Yield of Soybean
  • Arabidopsis ROCK1 transports UDP-GlcNAc/UDP-GalNAc and regulates ER protein quality control and cytokinin activity
  • A peripheral endocannabinoid mechanism contributes to glucocorticoid-mediated metabolic syndrome
  • High-Resolution Linkage Map and Chromosome-Scale Genome Assembly for Cassava (Manihot esculenta Crantz) from 10 Populations
  • Analysis of the Transcriptome of Banana Fruit during Ripening
  • Nitric oxide negatively regulates abscisic acid signaling in guard cells by S-nitrosylation of OST1
  • Salt Tolerant Gene in Soybean Identified
  • Climate change decouples oceanic primary and export productivity and organic carbon burial
  • Evolution of the H9N2 influenza genotype that facilitated the genesis of the novel H7N9 virus
  • 5-Hydroxymethylcytosine Is Not Present in Appreciable Quantities in Arabidopsis DNA
  • Fine mapping of the qLOP2 and qPSR2 1 loci associated with chilling stress tolerance of wild rice seedlings
  • Natural diversity in daily rhythms of gene expression contributes to phenotypic variation


Designed & Powered by WEBSO CO.,LTD