Novel source of resistance and differential reactions on chilli fruit infected by Colletotrichum capsici

Garg, Ruchi; Kumar, Satyendra; Kumar, Rajesh; Loganathan, M.; Saha, Sujoy; Kumar, Sanjeet; Awadhesh, B.; Roy, Bijoy Krishna

doi:10.1007/s13313-012-0194-7

Cited by 23 publications

(24 citation statements)

References 12 publications

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“…Inoculation with a virulent isolate or high concentration of the inoculum often result in the shifting of disease severity from resistant to susceptible category during artificial inoculation (Garg et al, 2013). However, two genotypes (CBT-Ac77 and Arka-Kalyan) showed resistant reaction for both field and in vitro inoculation.…”

Section: Discussionmentioning

confidence: 99%

Identification of Novel Source of Resistance and Differential Response of Allium Genotypes to Purple Blotch Pathogen, Alternaria porri (Ellis) Ciferri

Nanda

Chand

Mandal

et al. 2016

The Plant Pathology Journal

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Purple blotch, caused by Alternaria porri (Ellis) Cifferi, is a serious disease incurring heavy yield losses in the bulb and seed crop of onion and garlic worldwide. There is an immediate need for identification of effective resistance sources for use in host resistance breeding. A total of 43 Allium genotypes were screened for purple blotch resistance under field conditions. Allium cepa accession ‘CBT-Ac77’ and cultivar ‘Arka Kalyan’ were observed to be highly resistant. In vitro inoculation of a selected set of genotypes with A. porri, revealed that 7 days after inoculation was suitable to observe the disease severity. In vitro screening of 43 genotypes for resistance to A. porri revealed two resistant lines. An additional 14 genotypes showed consistent moderate resistance in the field as well as in vitro evaluations. Among the related Allium species, A. schoenoprasum and A. roylei showed the least disease index and can be used for interspecific hybridization with cultivated onion. Differential reaction analysis of three A. porri isolates (Apo-Chiplima, Apn-Nasik, Apg-Guntur) in 43 genotypes revealed significant variation among the evaluated Allium species (P = 0.001). All together, the present study suggest that, the newly identified resistance sources can be used as potential donors for ongoing purple blotch resistance breeding program in India.

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Section: Discussionmentioning

confidence: 99%

Identification of Novel Source of Resistance and Differential Response of Allium Genotypes to Purple Blotch Pathogen, Alternaria porri (Ellis) Ciferri

Nanda

Chand

Mandal

et al. 2016

The Plant Pathology Journal

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“…Two chili varieties from IVEGRI, Indonesia, Lembang-1 and Tanjung-2, have been reported as moderately resistant to anthracnose [ 161 ]. In India, some anthracnose-resistant lines listed by Reddy et al [ 162 ] are Bhut Jolokia [ 163 ]; LLS, PBC932 (VI047018), Breck-2, PBC80 (VI046804), Breck-1, Jaun, and PBC81 (VI046805) [ 164 ]. New crosses were made to combine superior sources of disease resistance, such as PBC932, a Capsicum chinense germplasm selection, with elite Indonesian OP varieties, mainly “Jatilaba”, “TitSuper”, and “KR-B” (“Keriting” from Bogor).…”

Section: Conventional Breeding To Marker-assisted Breeding For Antmentioning

confidence: 99%

Breeding for Anthracnose Disease Resistance in Chili: Progress and Prospects

Ridzuan

Rafii

Ismail

et al. 2018

IJMS

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Chili anthracnose is one of the most devastating fungal diseases affecting the quality and yield production of chili. The aim of this review is to summarize the current knowledge concerning the chili anthracnose disease, as well as to explore the use of marker-assisted breeding programs aimed at improving anthracnose disease resistance in this species. This disease is caused by the Colletotrichum species complex, and there have been ongoing screening methods of chili pepper genotypes with resistance to anthracnose in the field, as well as in laboratories. Conventional breeding involves phenotypic selection in the field, and it is more time-consuming compared to molecular breeding. The use of marker-assisted selection (MAS) on the basis of inheritance, the segregation ratio of resistance to susceptibility, and the gene-controlling resistance may contribute to the development of an improved chili variety and speed up the selection process, while also reducing genetic drag in the segregating population. More importantly, by using molecular markers, the linkage groups are determined dominantly and co-dominantly, meaning that the implementation of a reliable method to produce resistant varieties is crucial in future breeding programs. This updated information will offer a supportive direction for chili breeders to develop an anthracnose-resistant chili variety.

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“…Molecular polymorphism generated by RAPD confirmed the variation of different isolates and grouped into two clusters. Garg (2013) in in vitro studies found that among 41 genotypes tested, 33 were C. annuum genotypes and the majority of them were categorised into moderately susceptible (11) followed by moderately resistant (7) and highly susceptible (7) and less number of highly resistant (6) and symptom-less (2) categories, whereas in the non-annuum group and its crosses out of 8 tested, except one moderately resistant, all were highly resistant or symptom-less. In total, 24.2 % of C. annuum genotypes (33) and 87.5 % of nonannuum genotypes (8) were found to be highly resistant including few symptom-less categories (Figs.…”

Section: Identification Of Resistant Source Against Anthracnosementioning

confidence: 99%

Chilli Anthracnose: A Review of Causal Organism, Resistance Source and Mapping of Gene

Garg

Loganathan

Saha

et al. 2014

Microbial Diversity and Biotechnology in Food Security

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Anthracnose disease is one of the major economic constraints to chilli production in tropical and subtropical regions of the world and it is gaining much attention towards causes of damage in the field. Growing understanding has been based on conventional methods of characterisation of Colletotrichum species and its interaction with the host but it was not clear enough to recognise the differentiation among species, host-pathogen relationship and genetics of resistance in chilli. In this chapter, emphasis has been made on the evaluation of the isolates of Colletotrichum capsici causing chilli anthracnose for their morphological and cultural characteristics, pathogenic variability on chilli fruits and genetic diversity with the help of random amplified polymorphism (RAPD-PCR) analysis and designated into different major clusters. Simultaneously, screening of Capsicum genotypes against anthracnose for testing the resistance has been highlighted under in vitro condition. Further, on the basis of inheritance and the segregation ratio of resistance to susceptibility, gene controlling resistance at different fruit maturity stages has been discussed. More importantly, by QTL mapping, distribution of resistance gene/s located on chromosomes by using simple sequence repeats (SSR) primers, linkage groups are indicated. A number of complementary resistant component (host-parasitic interaction) controlled by one or multiple genes with small quantification effects have been emphasized. This information will be valuable to overcome the use of agrochemicals, impact of environmental factors and in the management of this serious threat to chilli through the development of resistant varieties as a donor candidate in commercial and resistance-breeding program.

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Novel source of resistance and differential reactions on chilli fruit infected by Colletotrichum capsici

Cited by 23 publications

References 12 publications

Identification of Novel Source of Resistance and Differential Response of Allium Genotypes to Purple Blotch Pathogen, Alternaria porri (Ellis) Ciferri

Identification of Novel Source of Resistance and Differential Response of Allium Genotypes to Purple Blotch Pathogen, Alternaria porri (Ellis) Ciferri

Breeding for Anthracnose Disease Resistance in Chili: Progress and Prospects

Chilli Anthracnose: A Review of Causal Organism, Resistance Source and Mapping of Gene

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