Detection of bacterial blight resistance genes in basmati rice landraces

Ullah, Ihsan; Jamil, Saima; Iqbal, Muhammad; Shaheen, Hamayun; Hasni, S.M.; Jabeen, Shagufta; Mehmood, Arshad; Akhter, Muhammad

doi:10.4238/2012.july.20.1

Cited by 34 publications

(26 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…While screening 57 basmati genotypes, Ullah et al. () identified Xa4, xa5, Xa7 and xa13 genes for resistance and also observed more prevalence of Xa7 in their experimental material as well as its effectiveness as also revealed by our findings. The adequacy of single gene Xa7 for conferring resistance to maximum isolates of Andaman & Nicobar Islands has also been confirmed by Shanti et al.…”

Section: Discussionsupporting

confidence: 85%

Analysis of Pathogenic Diversity of the Rice Bacterial Blight Pathogen (Xanthomonas oryzae pv. oryzae) in the Andaman Islands and Identification of Effective Resistance Genes

Gautam

Singh

Krishnan

et al. 2014

Journal of Phytopathology

View full text Add to dashboard Cite

Bacterial blight (BB) caused by Xanthomonas oryzae pv. oryzae (Xoo) is a major disease of rice in the tropics for which genetic resistance in the host plants is the only effective solution. This study aimed at identification of resistance gene combinations effective against Xoo isolates and fingerprinting of the Xoo isolates of Andaman Islands (India). Here, we report the reaction of 21 rice BB differentials possessing Xa1 to Xa21 genes individually and in different combinations to various isolates of pathogen collected from Andaman Islands. Pathological screening results of 14 isolates revealed that among individual genes tested across 2 years, Xa4, Xa7 and Xa21 conferred resistance reaction across all isolates, whereas among combinations, IRBB 50 (Xa4 + xa5), IRBB 52 (Xa4 + Xa21) and IRBB 60 (Xa4 + xa5 + xa13 + Xa21) conveyed effective resistance against tested isolates. The nature of genetic diversity among four isolates selected on the basis of geographical isolation in the islands was studied through DNA finger printing. The RAPD primers S111, S119, S1117, S1109, S1103, S109 and S105 were found to be better indicators of molecular diversity among isolates than JEL primers. The diversity analysis grouped 14 isolates into three major clusters based on disease reaction wherein isolate no. 8 was found the most divergent as well as highly virulent. The remaining isolates were classified into two distinct groups. The importance of the study in the context of transfer of resistance gene(s) in the local cultivars specifically for tropical island conditions is presented and discussed.

show abstract

Section: Discussionsupporting

confidence: 85%

Analysis of Pathogenic Diversity of the Rice Bacterial Blight Pathogen (Xanthomonas oryzae pv. oryzae) in the Andaman Islands and Identification of Effective Resistance Genes

Gautam

Singh

Krishnan

et al. 2014

Journal of Phytopathology

View full text Add to dashboard Cite

show abstract

“…1. Recently, Ullah et al [11] reported that Xa4 was detected in Basmati-385 and Basmati 2000 cultivars by using STS markers, which was agreed with our current study. In Vietnam, there are sporadical work examining BLB resistant genes of rice landstrains.…”

Section: Detection Of Resistant Gene Xa4supporting

confidence: 82%

Detection of Bacterial Leaf Blight Resistance Genes in Indigenous Glutinous Rice Landraces

Thạnh

Ton

Hai

et al. 2018

JHPR

View full text Add to dashboard Cite

Abstract. Bacterial leaf blight disease (BLB) caused by Xanthomonas oryzae pv is one of the most widespread devastating diseases of rice worldwide. In this study, a total of 86 indigenous glutinous rice landraces were examined for BLB resistant genes included Xa4, xa5, and Xa7 by using molecular markers. The results indicated that 37 samples carrying resistant genes, in which Xa4 was found in 11 samples, xa5 determined in 6 samples, Xa7 was in 19 samples, respectively. However, both of Xa7 and Xa4 were observed in only one sample. The resistant level against 10 bacterial strains carrying the resistant genes was also evaluated. We found that the number 6, 9, and 8 out of the 10 bacterial strains were resistant to the landraces which carried the Xa4, xa5, and Xa7. The bacterial strain number 5 was revealed highly toxic, causing infection of all samples. The agronomical traits, yield and yield components of 37 rice landraces included the resistant genes (Xa4, xa5 and Xa7) were evaluated. Our findings may provide useful genetic sources in indigenous glutinous rice landraces to further develop BLB resistant rice lines via molecular breeding program.

show abstract

“…Sixteen wild rice accessions possessed only one gene of xa5, Xa4, and Xa2, while 9 accessions did not possess any resistance genes. Similarly, Ullah et al (2012) reported that out of 52, only 10 basmati rice landraces had multiple resistance genes. These results also showed that the analysis of the distribution of resistance genes in wild rice accessions can direct BLB resistance breeding programs.…”

Section: Figurementioning

confidence: 99%

Identification of bacterial leaf blight resistance genes in wild rice of eastern India

Singh¹,

Dharmraj²,

Nayak³

et al. 2015

Turk J Bot

View full text Add to dashboard Cite

An experiment was conducted during the 2013 monsoon season to screen 35 wild rice accessions against the BX043 strain of Xanthomonas oryzae pv. oryzae and identify the presence of bacterial blight resistance genes Xa21, xa13, xa5, Xa4, and Xa2. Among the accessions the area under the disease progress curve ranged from 174.88 (NKSWR-65) to 680.54 (NKSWR-34) compared with resistant controls RP bio-226 (93.92), CRMAS 2231-37 (097.28), CRMAS 2232-71 (098.58), and Tetep (178.62) and susceptible control PB-1 (1065.56). On the basis of disease severity 11 accessions showed moderate resistance, 21 were moderately susceptible, and 3 accessions showed susceptible response to the BX043 strain of Xanthomonas oryzae pv. oryzae, while none of the accessions were found to be resistant. The genetic frequency of the 5 resistance genes varied from 00.00% to 45.71%. The accession NKSWR-25 harbored 3 resistance genes, xa5, Xa4, and Xa2, while accessions NKSWR-16, NKSWR-32, NKSWR-36, NKSWR-41, NKSWR-42, NKSWR-53, NKSWR-64, NKSWR-97, and NKSWR-99 each possessed 2 resistance genes of those 3 (xa5, Xa4, and Xa2). Therefore, these accessions could be used for the transfer of specific bacterial leaf blight resistance genes into well-adapted high-yielding rice cultivars.

show abstract

Detection of bacterial blight resistance genes in basmati rice landraces

Cited by 34 publications

References 15 publications

Analysis of Pathogenic Diversity of the Rice Bacterial Blight Pathogen (Xanthomonas oryzae pv. oryzae) in the Andaman Islands and Identification of Effective Resistance Genes

Analysis of Pathogenic Diversity of the Rice Bacterial Blight Pathogen (Xanthomonas oryzae pv. oryzae) in the Andaman Islands and Identification of Effective Resistance Genes

Detection of Bacterial Leaf Blight Resistance Genes in Indigenous Glutinous Rice Landraces

Identification of bacterial leaf blight resistance genes in wild rice of eastern India

Contact Info

Product

Resources

About