Breeding approaches for bacterial leaf blight resistance in rice (Oryza sativa L.), current status and future directions

Khan, Mueen Alam; Naeem, Muhammad; Iqbal, Muhammad

doi:10.1007/s10658-014-0377-x

Cited by 75 publications

(66 citation statements)

References 72 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In the USA alone, crop losses due to plant pathogens are worth $33 billion per year (Pimentel, 2011) despite the use of almost 500,000 tonnes of pesticides per year (Pimentel and Burgess, 2014). For example, bacterial blight is the most important disease in rice (Dossa et al, 2015); the resulting yield loss ranges between 20% and 30% and, in the case of a serious infection, it " 45 can increase up to 80% causing substantial economic loss (Khan et al, 2014). SDNs have been used to create bacterial blight-resistant rice by targeting the sweet genes involved in bacterial blight susceptibility in rice using TALENs and CRISPR/Cas9 (Jiang et al, 2013).…”

Section: Genome Editing With Engineered Nucleasesmentioning

confidence: 99%

Genome Editing with Engineered Nucleases in Economically Important Animals and Plants: State of the Art in the Research Pipeline

2017

Current Issues in Molecular Biology

View full text Add to dashboard Cite

show abstract

Section: Genome Editing With Engineered Nucleasesmentioning

confidence: 99%

Genome Editing with Engineered Nucleases in Economically Important Animals and Plants: State of the Art in the Research Pipeline

2017

Current Issues in Molecular Biology

View full text Add to dashboard Cite

show abstract

“…However, the limited of seasonal confounding could overcome by markerassisted selection (MAS) (Collard & Mackill, 2008). The modes of inheritance of resistance to BLB in rice were differences when evaluated in different sources of resistance (Khan, Naeem, & Iqbal, 2014;Das, Sengupta, Prasad, & Ghose, 2014). This suggests a number of different mechanisms or genes may confer resistance to BLB.…”

Section: Introductionmentioning

confidence: 99%

“…This suggests a number of different mechanisms or genes may confer resistance to BLB. So far, 40 BLB resistance genes have been reported (Khan, Naeem, & Iqbal, 2014). However, resistance was very often overcome by the pathogen, which in turn led to high levels of variability in infections in cultivation areas (Sreewongchai et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Stability of Four New Sources of Bacterial Leaf Blight Resistance in Thailand Obtained from Indigenous Rice Varieties

et al. 2017

View full text Add to dashboard Cite

Bacterial leaf blight (BLB) disease caused by Xanthomonas oryzae pv. oryzae (Xoo) is one of the most serious diseases in rice production. Breeding varieties specifically for their resistance to BLB disease is therefore an efficient and cost-effective strategy. However, the resistance gene for BLB can be race and non-race specific, meaning it is often overcome by the pathogen. The identification of new sources of resistance genes for Xoo is crucial in rice breeding programmes. In this study, six rice varieties were assessed using six Xoo isolates in multiple screening conditions. The GGE biplot analysis considers both genotype (G) and genotype environment (GE) interaction effects and demonstrates GE interaction. The first two principal components (PCs) accounted for 95.46% of the total GE variation in the data. Based on lesion length and stability performance, Phaladum was the most ideal genotype against all Xoo isolates in the four screening conditions. The results relayed that Phaladum indigenous rice varieties could be considered as new sources of bacterial leaf blight resistance in Thailand. In the future, the BLB resistance gene in this variety will be identified in regard to mode of inheritance and used as parental line in rice breeding programmes for resistance to BLB.

show abstract

“…Oryzae (Xoo), which is a causal agent of bacterial leaf blight (BLB) of rice. BLB is one of the disastrous diseases that lead to crop failure in tropical and temperate rice growing regions of the world (Mew, 1987;Khan et al, 2014). In Korea, BLB appeared as an emerging disease in past years, affecting yield and grain quality of rice (Noh et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Preliminary genome-wide association mapping of rice bacterial leaf blight resistance loci using major Korean races of Xoo (Xanthomonas oryzae)

Ali¹,

Yoon-Hyun²,

Noh³

et al. 2017

Plant Omics

View full text Add to dashboard Cite

Bacterial leaf blight (BLB), caused by X. oryzae pv. oryzae (Xoo), is one of the most destructive diseases of rice due to its high epidemic potential. Understanding BLB resistance at a genetic level is important to further improve the rice breeding that provides one of the best approaches to control BLB disease. In the present investigation, a collection of 96 accessions was used in the genomewide association study (GWAS) for BLB resistance loci against four Korean races of Xoo that were represented by the prevailing BLB isolates under Xoo differential system. The results of the bioassay using a selected set of 96 accessions showed that a large number of accessions (93.75%) were resistant to K1 race, while the least number of accessions (34.37%) resisted K3a race. For races K2 and K3, the resistant germplasm proportion remained between 66.67 to 70.83%. The genotypic data produced SNP matrix for a total of 293,379 SNPs. After imputation the missing data was removed, which exhibited 34,724 SNPs for association analysis. GWAS results showed strong signals of association at a threshold of [-log10(P-value)] more than 5 (K1 and K2) and more than 4 (K3 and K3a) for nine of the 39 SNPs, which are plausible candidate loci of resistance genes. These SNP loci were positioned on rice chromosome 2, 9, and 11 for K1 and K2 races, whereas on chromosome 4, 6, 11, and 12 for K3 and K3a races. The significant loci detected have also been illustrated, NBS-LRR type disease resistance protein, SNARE domain containing protein, Histone deacetylase 19, NADP-dependent oxidoreductase, and other expressed and unknown proteins. Our results provide a better understanding of the distribution of genetic variation of BLB resistance to Korean pathogen races and breeding of resistant rice cultivars.

show abstract

Breeding approaches for bacterial leaf blight resistance in rice (Oryza sativa L.), current status and future directions

Cited by 75 publications

References 72 publications

Genome Editing with Engineered Nucleases in Economically Important Animals and Plants: State of the Art in the Research Pipeline

Genome Editing with Engineered Nucleases in Economically Important Animals and Plants: State of the Art in the Research Pipeline

Stability of Four New Sources of Bacterial Leaf Blight Resistance in Thailand Obtained from Indigenous Rice Varieties

Preliminary genome-wide association mapping of rice bacterial leaf blight resistance loci using major Korean races of Xoo (Xanthomonas oryzae)

Contact Info

Product

Resources

About