Genetics of powdery mildew disease resistance in blackgram [Vigna mungo (L.) Hepper]

Powdery mildew susceptible (VBN 11) and resistant (LBG 17) blackgram genotypes were crossed. Parents, F1, F2, F3, F4 and BC1F2 of cross VBN 11 X LBG 17 were screened against powdery mildew disease. Based on the per cent disease index (PDI), two phenotypic classes were formed as resistant and suscep...

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Main Author: P. Punithavathy1, D. Kumaresan2*, N. Manivannan3, N. Manikanda Boopathi4 and G. Senthilraja5
Format: Article
Language:English
Published: Indian Society of Plant Breeders 2023-12-01
Series:Electronic Journal of Plant Breeding
Subjects:
Online Access:https://ejplantbreeding.org/index.php/EJPB/article/view/4889
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author P. Punithavathy1, D. Kumaresan2*, N. Manivannan3, N. Manikanda Boopathi4 and G. Senthilraja5
author_facet P. Punithavathy1, D. Kumaresan2*, N. Manivannan3, N. Manikanda Boopathi4 and G. Senthilraja5
author_sort P. Punithavathy1, D. Kumaresan2*, N. Manivannan3, N. Manikanda Boopathi4 and G. Senthilraja5
collection DOAJ
description Powdery mildew susceptible (VBN 11) and resistant (LBG 17) blackgram genotypes were crossed. Parents, F1, F2, F3, F4 and BC1F2 of cross VBN 11 X LBG 17 were screened against powdery mildew disease. Based on the per cent disease index (PDI), two phenotypic classes were formed as resistant and susceptible. The F1 showed susceptible reaction to powdery mildew disease. The segregating population in F2, F3, F4 and BC1F2 segregated in 3:1 ratio for susceptible and resistant reaction to powdery mildew disease. The Chi-square test indicated that the 3:1 ratio was perfectly fit for the susceptible and resistant reaction for powdery mildew disease in all segregating populations. Hence, the present study confirmed that the resistance of powdery mildew resistance is governed by a monogenic recessive gene.
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spelling doaj.art-b2484639c34f49ceaf87a313bc5885832024-01-20T05:17:12ZengIndian Society of Plant BreedersElectronic Journal of Plant Breeding0975-928X2023-12-011441421142410.37992/2023.1404.155Genetics of powdery mildew disease resistance in blackgram [Vigna mungo (L.) Hepper]P. Punithavathy1, D. Kumaresan2*, N. Manivannan3, N. Manikanda Boopathi4 and G. Senthilraja501Centre for Plant Breeding and Genetics, Tamil Nadu Agricultural University, Coimbatore- 641 003 2Department of Rice, CPBG, Tamil Nadu Agricultural University, Coimbatore- 641 003 3Centre of Excellence in Molecular Breeding, CPBG, Tamil Nadu Agricultural University, Coimbatore- 641 003 4Directorate of Research, Tamil Nadu Agricultural University, Coimbatore- 641 003 5Department of Pulses, CPBG, Tamil Nadu Agricultural University, Coimbatore- 641 003 *E-Mail: kumaresan.d@tnau.ac.inPowdery mildew susceptible (VBN 11) and resistant (LBG 17) blackgram genotypes were crossed. Parents, F1, F2, F3, F4 and BC1F2 of cross VBN 11 X LBG 17 were screened against powdery mildew disease. Based on the per cent disease index (PDI), two phenotypic classes were formed as resistant and susceptible. The F1 showed susceptible reaction to powdery mildew disease. The segregating population in F2, F3, F4 and BC1F2 segregated in 3:1 ratio for susceptible and resistant reaction to powdery mildew disease. The Chi-square test indicated that the 3:1 ratio was perfectly fit for the susceptible and resistant reaction for powdery mildew disease in all segregating populations. Hence, the present study confirmed that the resistance of powdery mildew resistance is governed by a monogenic recessive gene. https://ejplantbreeding.org/index.php/EJPB/article/view/4889blackgramgeneticspowdery mildewresistancemonogenic
spellingShingle P. Punithavathy1, D. Kumaresan2*, N. Manivannan3, N. Manikanda Boopathi4 and G. Senthilraja5
Genetics of powdery mildew disease resistance in blackgram [Vigna mungo (L.) Hepper]
Electronic Journal of Plant Breeding
blackgram
genetics
powdery mildew
resistance
monogenic
title Genetics of powdery mildew disease resistance in blackgram [Vigna mungo (L.) Hepper]
title_full Genetics of powdery mildew disease resistance in blackgram [Vigna mungo (L.) Hepper]
title_fullStr Genetics of powdery mildew disease resistance in blackgram [Vigna mungo (L.) Hepper]
title_full_unstemmed Genetics of powdery mildew disease resistance in blackgram [Vigna mungo (L.) Hepper]
title_short Genetics of powdery mildew disease resistance in blackgram [Vigna mungo (L.) Hepper]
title_sort genetics of powdery mildew disease resistance in blackgram vigna mungo l hepper
topic blackgram
genetics
powdery mildew
resistance
monogenic
url https://ejplantbreeding.org/index.php/EJPB/article/view/4889
work_keys_str_mv AT ppunithavathy1dkumaresan2nmanivannan3nmanikandaboopathi4andgsenthilraja5 geneticsofpowderymildewdiseaseresistanceinblackgramvignamungolhepper