Identification of New Source of Resistance to Powdery Mildew of Indian Mustard and Studying Its Inheritance

다국어 초록 (Multilingual Abstract)

Powdery mildew of Indian mustard (Brassica juncea), caused by Erysiphe cruciferarum, is emerging as ma- jor problem in India. All the Indian mustard cultivars presently grown in India are highly susceptible to pow- dery mildew and so far no resistance source has been reported. In this study, with an aim to identify resistant source, 1,020 Indian mustard accessions were evaluated against E. cruciferarum PMN isolate, at Wellington, The Nilgiris, Tamil Nadu, India under natural hot spot conditions. The study identified one accession (RDV 29) with complete resistance against E. cruciferarum PMN isolate for the first time, which was consistent in five independent evaluations. Genetic analysis of F1, F2 and backcross populations obtained from the cross RSEJ 775 (highly susceptible) × RDV 29 (highly resistant) for two season revealed that the resistance is governed by two genes with semi-dominant and gene dosage effect. Further, a new disease rating system using six scales (0, 1, 2, 3, 4, and 5) has also been proposed in this study to score powdery mildew based on progress of fungal growth in different plant parts of the F2 population. The outcome of this study viz. newly identified powdery mildew-resistant Indian mustard accession (RDV 29), information on inheritance of resistance and the newly developed disease rating scale will provide the base for development of powdery mildew-resistant cultivars of Indian mustard.

목차 (Table of Contents)

• Materials and Methods Results Discussion

참고문헌 (Reference)

1 Annonymous, "Vision 2050"

2 Alkooranee, J. T., "Systemic resistance to powdery mildew in Brassica napus (AACC) and Raphanus alboglabra (RRCC)by Trichoderma harzianum TH12" 10 : e0142177-, 2015

3 Snedecor, G. W, "Statistical methods" Iowa State University Press 593-, 1967

4 Kumar, S, "Sources of multiple disease resistance in Brassica spp" 32 : 184-188, 2002

5 Nanjundan, J., "Sequential infection of three biotrophic fungal pathogens (Albugo candida, Peronospora parasitica and Erysiphe cruciferarum) in Indian mustard at Wellington" 8 : 13-14, 2017

6 Mohitkar, S. A., "Screening of mustard varieties against powdery mildew caused by Erysiphe cruciferarum" Indian Society of Mycology and Plant Pathology at Maharana Pratap University of Agriculture and Technology 1-224, 2012

7 Bisht, K. S., "Screening of Brassica germplasm for resistance to major diseases of rapeseed-mustard" 10 : 2111-2119, 2015

8 Ministry of Agriculture and Farmers Welfare, Government of India, "Pocket book of agricultural statistics" Directorate of Economics and Statistics, Department of Agriculture, Cooperation and Farmers Welfare, Ministry of Agriculture and Farmers Welfare, Government of India 194-, 2017

9 Xiao, S., "Origin and maintenance of a broad-spectrum disease resistance locus in Arabidopsis" 21 : 1661-1672, 2004

10 Saharan, G. S, "Occurrence and epidemiology of powdery mildew of Brassica" 34 : 54-57, 1981

11 Li, Q., "Multiple evolutionary events involved in maintaining homologs of Resistance to Powdery Mildew 8 in Brassica napus" 7 : 1065-, 2016

12 Kanzaria, K. K., "Management of powdery mildew disease (Erysiphe cruciferarum Opiz ex. Junell.) of mustard [Brassica juncea (L.) Czern. & Coss]" Junagadh Agricultural University 2012

13 Kumar, S., "Inheritance of resistance in inter and intraspecific crosses of Brassica juncea and Brassica carinata to Albugo candida and Erysiphe cruciferarum" 32 : 59-63, 2002

14 Yadav, R., "Identification and evaluation of Indian mustard genotypes for white rust resistance and agronomic performance" 78 : 81-89, 2018

15 Adam, L, "Genetic characterization of five powdery mildew disease resistance loci in Arabidopsis thaliana" 9 : 341-356, 1996

16 Kim, J. Y., "First report of powdery mildew caused by Erysiphe cruciferarum on Indian mustard (Brassica juncea) in Korea" 97 : 1383-, 2013

17 Tam, L. T. T., "First report of powdery mildew caused by Erysiphe cruciferarum on Brassica juncea in Vietnam" 100 : 856-, 2016

18 Kaur, P., "First report of powdery mildew caused by Erysiphe cruciferarum on Brassica juncea in Australia" 92 : 650-, 2008

19 Narain, A., "Field reaction of species of Brassica to Erysiphe polygoni" 9 : 153-157, 1965

20 Mehta, S., "Diseases of oilseed crops" Indus Publishing Company 15-86, 2005

21 Meena, P. D., "Compendium of rapeseed-mustard diseases: identification and management" ICAR-Directorate of Rapeseed-Mustard Research 30-, 2014

22 Xiao, S., "Characterization of three loci controlling resistance of Arabidopsis thaliana accession Ms-0 to two powdery mildew diseases" 12 : 757-768, 1997

23 Xiao, S., "Broad-spectrum mildew resistance in Arabidopsis thaliana mediated by RPW8" 29 : 118-120, 2001

24 Dange, S. R. S., "Assessment of losses in yield due to powdery mildew disease in mustard under North Gujarat conditions" 32 : 249-250, 2002

25 Wheeler, B. E. J, "An introduction to plant diseases" John Wiley and Sons Ltd 254-, 1969