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Inheritance and allelic relationship among gene(s) for blast resistance in pearl millet [Pennisetum glaucum (L.) R. Br.]

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Relation http://oar.icrisat.org/10775/
http://dx.doi.org/10.1111/pbr.12607
10.1111/pbr.12607
 
Title Inheritance and allelic relationship among gene(s) for blast resistance in pearl millet [Pennisetum glaucum (L.) R. Br.]
 
Creator Singh, S
Sharma, R
Pushpavathi, B
Gupta, S K
Durgarani, CH V
Raj, C
Prasad, M
 
Subject Pearl Millet
Genetics and Genomics
 
Description Six blast‐resistant pearl millet genotypes, ICMB 93333, ICMB 97222, ICMR 06444, ICMR 06222, ICMR 11003 and IP 21187‐P1, were crossed with two susceptible genotypes, ICMB 95444 and ICMB 89111 to generate F1s, F2s and backcrosses, BC1P1 (susceptible parent × F1) and BC1P2 (resistant parent × F1) for inheritance study. The resistant genotypes were crossed among themselves in half diallel to generate F1s and F2s for test of allelism. The F1, F2 and backcross generations, and their parents were screened in a glasshouse against Magnaporthe grisea isolates Pg 45 and Pg 53. The reaction of the F1s, segregation pattern of F2s and BC1P1 derived from crosses involving two susceptible parents and six resistant parents revealed the presence of single dominant gene governing resistance in the resistant genotypes. No segregation for blast reaction was observed in the F2s derived from the crosses of resistant × resistant parents. The resistance reaction of these F2s indicated that single dominant gene conferring resistance in the six genotypes is allelic, that is same gene imparts blast resistance in these genotypes to M. grisea isolates.
 
Publisher Wiley
 
Date 2018-06
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://oar.icrisat.org/10775/1/Singh_et_al-2018-Plant_Breeding.pdf
Singh, S and Sharma, R and Pushpavathi, B and Gupta, S K and Durgarani, CH V and Raj, C and Prasad, M (2018) Inheritance and allelic relationship among gene(s) for blast resistance in pearl millet [Pennisetum glaucum (L.) R. Br.]. Plant Breeding (TSI). pp. 1-12. ISSN 01799541