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Inheritance of foliar blast resistance in pearl millet ( Pennisetum glaucum )
Author(s) -
Gupta Shashi K.,
Sharma Rajan,
Rai Kedar N.,
Thakur Ram P.
Publication year - 2012
Publication title -
plant breeding
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.583
H-Index - 71
eISSN - 1439-0523
pISSN - 0179-9541
DOI - 10.1111/j.1439-0523.2011.01929.x
Subject(s) - pennisetum , biology , pearl , agronomy , inheritance (genetic algorithm) , resistance (ecology) , poaceae , botany , gene , genetics , philosophy , theology
With 1 tableAbstract Foliar blast, caused by Pyricularia grisea (Cooke) Sacc, has recently emerged as a serious disease of pearl millet in India. To study the inheritance of resistance to this disease, two resistant restorer lines (ICMR 06222 and ICMR 07555) and two susceptible maintainer lines (ICMB 95444 and ICMB 89111) were selected on the basis of foliar blast reaction in tests conducted under field and greenhouse conditions. Each of the two resistant parents was crossed with two susceptible parents to generate four sets of F 1 s, F 2 s and their backcrosses with both resistant and susceptible parental lines. These were evaluated for disease reaction with artificial inoculation under both field and greenhouse conditions. The disease reaction of the F 1 s, and the segregation patterns of resistance in the F 2 s and backcross generations, showed that resistance to foliar blast in pearl millet is controlled by a single dominant gene.