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Featured researches published by Om P. Gangwar.


Frontiers in Plant Science | 2018

Genome Wide Association Mapping of Seedling and Adult Plant Resistance to Barley Stripe Rust (Puccinia striiformis f. sp. hordei) in India

Andrea Visioni; Sanjaya Gyawali; R. Selvakumar; Om P. Gangwar; Pradeep S. Shekhawat; Subhash C. Bhardwaj; Ayed M. Al-Abdallat; Zakaria Kehel; Ramesh Pal Singh Verma

Barley stripe rust is caused by Puccinia striiformis f.sp. hordei, (Psh), occurs worldwide, and is a major disease in South Asia. The aim of this work was to identify and estimate effects of loci underlying quantitative resistance to rust at seedling and adult plant stages. HI-AM panel of 261 barley genotypes consisting of released cultivars from North and South America, Europe, Australia, advanced breeding lines, and local landraces from ICARDA barley program were screened at seedling and adult plant stages for resistance to Psh. Seedling resistance was evaluated with the five prevalent Psh races in India. Screening for the adult plant stage resistance was also performed in two different locations by inoculating with a mixture of the five races used for seedling screeing. The panel was genotyped using DaRT-Seq high-throughput genotyping platform. The genome-wide association mapping (GWAM) showed a total of 45 QTL located across the seven barley chromosomes for seedling resistance to the five races and 18 QTL for adult plant stage resistance. Common QTL for different races at seedling stage were found on all chromosomes except on chromosome 1H. Four common QTL associated with seedling and adult plant stage resistance were found on chromosomes 2, 5, and 6H. Moreover, one of the QTL located on the long arm of chromosome 5H showed stable effects across environments for adult plant stage resistance. Several QTL identified in this study were also reported before in bi-parental and association mapping populations studies validating current GWAM. However 15 new QTL were found at adult plant stage on all chromosomes except the 4H, explaining up to 36.79% of the variance. The promising QTL detected at both stages, once validated, can be used for MAS in Psh resistance breeding program globally.


Indian Journal of Genetics and Plant Breeding | 2017

Efficiency of double haploid production in wheat through wide hybridization and embryo rescue

Hanif Khan; S. C. Bhardwaj; Om P. Gangwar; Pramod Prasad; Ruchi Rathore

The effect of haploid induction in wheat F1s by Zea mays, Imperata cylindrica and growth environments was investigated. Doubled Haploid (DH) plant production via maize and I. cylindrica technique from field grown LWH x VL616 F1 plants was equally efficient. In second environment, four F1 hybrids viz. LWH x VL616, HPW266 x Yr15 (CN25087), HS490 x HI1563 and Local Red x WHD938 were grown in greenhouse conditions and pollinated with maize. Efficiency of DH production was considerably high from greenhouse grown F1s as compared to field grown F1s. We also report an efficient protocol for DH production in bread wheat.


Current Science | 2016

Ug99:Saga, Reality and Status

Pramod Prasad; S. C. Bhardwaj; Hanif Khan; Om P. Gangwar; Subodh Kumar; S. B. Singh


Journal of Plant Growth Regulation | 2018

Temporal Transcriptional Changes in SAR and Sugar Transport-Related Genes During Wheat and Leaf Rust Pathogen Interactions

Siddanna Savadi; Pramod Prasad; S. C. Bhardwaj; Prem Lal Kashyap; Om P. Gangwar; Hanif Khan; Subodh Kumar


Journal of Phytopathology | 2018

Seedling and adult‐plant stage resistance of a world collection of barley genotypes to stripe rust

Sanjaya Gyawali; Ramesh Pal Singh Verma; Subodh Kumar; Subhash Chand Bhardwaj; Om P. Gangwar; R. Selvakumar; Pradip Singh Shekhawat; Sajid Rehman; Dipak Sharma‐Poudyal


Journal of Phytopathology | 2018

Identification of additional sources of resistance to Puccinia striiformis f. sp. hordei (PSH) in a collection of barley genotypes adapted to the high input condition

Ramesh Pal Singh Verma; R. Selvakumar; Om P. Gangwar; Pradeep S. Shekhawat; Subhash C. Bhardwaj; Sajid Rehman; Dipak Sharma‐Poudyal; Sanjaya Gyawali


Current Science | 2017

Population Differentiation of Wheat Leaf Rust Fungus Puccinia triticina in South Asia

Pramod Prasad; S. C. Bhardwaj; Om P. Gangwar; Subodh Kumar; Hanif Khan; Shravan Kumar; H. C. Rawal; Tarun Sharma


Indian phytopathology | 2018

Population behaviour of predominant and virulent pathotypes of Puccinia triticina causing wheat brown rust in India

Neha Gupta; S. C. Bhardwaj; T. R. Sharma; Pramod Prasad; Om P. Gangwar; Subodh Kumar


Crop Protection | 2018

Population distribution and differentiation of Puccinia graminis tritici detected in the Indian subcontinent during 2009–2015

Pramod Prasad; S. C. Bhardwaj; Siddanna Savadi; Prem Lal Kashyap; Om P. Gangwar; Hanif Khan; Raghwendra Singh; S. B. Singh; Sundeep Kumar


Archive | 2017

Chapter 12: Molecular Markers for Wheat Improvement: Tool for Precision Rust Resistance Breeding

Subodh Kumar; Subhash C. Bhardwaj; Om P. Gangwar; Pramod Prasad; Hanif Khan; Siddanna Savadi

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Pramod Prasad

Indian Council of Agricultural Research

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Hanif Khan

Indian Council of Agricultural Research

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Subodh Kumar

Indian Veterinary Research Institute

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Siddanna Savadi

Indian Council of Agricultural Research

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Subhash C. Bhardwaj

Indian Council of Agricultural Research

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S. C. Bhardwaj

Indian Council of Agricultural Research

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R. Selvakumar

Indian Council of Agricultural Research

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Ramesh Pal Singh Verma

International Center for Agricultural Research in the Dry Areas

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Sanjaya Gyawali

International Center for Agricultural Research in the Dry Areas

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Prem Lal Kashyap

Indian Council of Agricultural Research

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