Follow
International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39 For more details click here
National Academy of Agricultural Sciences (NAAS) : NAAS Score: *5.38 (2020) [Effective from January 1, 2020]For more details click here

Login as a Reviewer

Indexed in



National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2018: 95.39
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39
For more details click here

See Guidelines to Authors
Current Issues

Original Research Articles

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2020.9(7): 210-227
DOI: https://doi.org/10.20546/ijcmas.2020.907.024


Genotypic Assessment of Bacterial Leaf Blight Resistance in Indigenous Rice (Oryza sativa L.) Germplasm
R. Ashiba1*, K. Eraivan Arutkani Aiyanathan1, R. Kannanand M. Arumugam Pillai2
1Department of Plant Pathology
2Department of Plant Breeding and Genetics, Agricultural College & Research Institute, Tamilnadu Agricultural University,Killikulam - 628252, Tamilnadu, India
*Corresponding author
Abstract:

One hundred rice genotypes were analyzed to evaluate the genetic polymorphism and identification of resistant lines to bacterial leaf blight (BLB) disease caused by Xanthomonas oryzae pv. oryzae using simple sequences repeat (SSR) markers. A total of 38 alleles were detected by seven polymorphic markers showing highly polymorphic across all genotypes with an average of 5.42 alleles per polymorphic marker. The marker RM-21, RM-122 and RM-224 produced maximum 6 alleles. The PIC values ranged from 0.345 to 0.688 and marker RM-21 was found to be the most appropriate marker to discriminate BLB resistant rice genotypes owing to the highest PIC value of 0.688. The cluster analysis showed that these genotypes grouped into four clusters, in which cluster IV had maximum forty genotypes followed by cluster III and cluster I. Multiple resistance ® genes (Xa21+ xa13+xa5+Xa4) were identified in germplasms such as Dhalakeera, Swarnamasuri, Purple puttu, Veethiruppu showing high level of resistance to BLB, while Navarai black 5571and Kalyani were found to be moderately resistant to BLB disease in both field and controlled condition. These genetically diverse BLB resistant genotypes can be directly utilized in rice BLB resistance breeding programs.


Keywords: Rice germplasm, BLB, Resistance, Genetic diversity, Cluster analysis
Download this article as Download

How to cite this article:

Ashiba. R., K. Eraivan Arutkani Aiyanathan, R. Kannan and Arumugam Pillai. M. 2020. Genotypic Assessment of Bacterial Leaf Blight Resistance in Indigenous Rice (Oryza sativa L.) Germplasm.Int.J.Curr.Microbiol.App.Sci. 9(7): 210-227. doi: https://doi.org/10.20546/ijcmas.2020.907.024