Resistance in Capsicum spp. to anthracnose affected by different stages of fruit development during pre- and post-harvest

Silva, Soraia A. M.; Rodrigues, Rosana; Gonçalves, Leandro Simões Azeredo; Sudré, Cláudia Pombo; Bento, Cíntia dos Santos; Carmo, Margarida Goréte Ferreira do; Medeiros, Artur Mendes

doi:10.1590/s1982-56762014000400009

Cited by 29 publications

(25 citation statements)

References 19 publications

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“…In Capsicum genus, resistance control depends on the plant organ under study, such as leaf or fruit (Mahasuk et al, 2009a). In the case of fruit, resistance may also vary with maturation stage, whether immature or mature (Silva et al, 2014;Sun et al, 2015;Suwor et al, 2015). In this study, we noticed that immature fruit was more susceptible to anthracnose than mature ones, which corroborates the hypothesis of different genetic control in these maturation stages.…”

Section: Exp12 -Resistance Assessment To Anthracnosesupporting

confidence: 86%

“…Evaluations were performed daily, at the same time, for seven days. Again, we made use of a scoring range, which was suggested by Montri et al (2009) and used by Silva et al (2014), thus determining the resistance levels on the seventh day of evaluation. Also, we calculated both incubation (IP) and latent (LP) periods of anthracnose infection, which correspond to the number of days between inoculation and the onset of symptoms, and between inoculation and the appearance of signs (acervulus formation), respectively.…”

Section: Exp12 -Resistance Assessment To Anthracnosementioning

confidence: 99%

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Research Article Multiple genetic resistances in Capsicum spp.

Bento¹,

Souza²,

Sudré³

et al. 2017

Genet. Mol. Res.

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ABSTRACT. This study aimed to identify Capsicum genotypes with resistance to bacterial spot (BS), anthracnose and Pepper yellow mosaic virus (PepYMV). Fifty-four genotypes of Capsicum spp were evaluated. Resistance reaction against BS was evaluated using three replicates, testing hypersensitivity and quantitative resistance in leaves. After evaluation, inoculated leaves were detached from the plants, being then cultivated until reproductive stage for evaluations anthracnose resistance in immature and mature fruit, totalizing 18 fruits per genotype. For PepYMV resistance was performed with five replications. Each genotype reaction was evaluated by a scoring scale, using the area under the disease progress curve for each pathosystem, and incubation period for the three systems. The latent period was evaluated only for the pathosystem Capsicum-Colletotrichum gloeosporioides. Means were grouped by the Scott-Knott test. Measures of dissimilarity matrix among the genotypes were obtained by Gower's algorithm and the grouping was obtained by the UPGMA clustering method. The accessions belonging to the Capsicum frutescens were the most susceptible to the three diseases. At least one genotype of Capsicum baccatum var. pendulum, Capsicum annuum, and Capsicum chinense showed resistance potential to BS and PepYMV, for use in breeding programs. The accession UENF 1381 (C. annuum) was resistant to the three pathogens.

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Section: Exp12 -Resistance Assessment To Anthracnosesupporting

confidence: 86%

Section: Exp12 -Resistance Assessment To Anthracnosementioning

confidence: 99%

Research Article Multiple genetic resistances in Capsicum spp.

Bento¹,

Souza²,

Sudré³

et al. 2017

Genet. Mol. Res.

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“…In leaves, the symptoms are not severe, besides being restricted, which may be advantageous for the selection of resistance at the early stage of development (Mahasuk et al, 2009b). In similar experiments, anthracnose resistance sources have been found in C. chinense in the seedling phase (Mahasuk et al, 2009a;Silva et al, 2014). This indicates that breeding of this species can be performed by selection or by genetic crosses.…”

Section: Discussionmentioning

confidence: 70%

Screening of chilli pepper genotypes against anthracnose (Colletotrichum brevisporum)

Souza¹,

Assis²,

Catarino³

et al. 2020

Emir J Food Agric

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Anthracnose is the most important disease of chili pepper pimenta-de-cheiro (Capsicum chinense Jacq.). This species is widely cultivated in dryland areas in the Amazon, presenting high genetic diversity. Therefore, it presents a high potential for use in breeding. The objective of this study was to select pepper genotypes with potential resistance to anthracnose (Colletotrichum brevisporum). For this purpose, ripe fruits of pepper were acquired from the producing farms in the municipalities of Iranduba, Manacapuru, Rio Preto da Eva and Presidente Figueiredo. The experiments were conducted in seedlings (Phase I) and in mature and immature fruits (Phase II). The evaluation of the disease severity was performed using a scale of scores. The morphoagronomic characterization of the genotypes considered the fruits in the immature and mature stages and plant growth habit. The injured areas in the immature fruits ranged from 0.3 to 9.7 cm2 and in the mature areas, it ranged from 0.2 to 9.9 cm2. The genotypes RPE41 and MPU29 indicated resistance to anthracnose in both stages. The morphoagronomic characterization of the fruits revealed variability for mass (5.58 to 13.74 g), length [C] (4.08 to 8.16 cm), diameter [D] (1.74 to 2.54 cm), L/D ratio (1.88 to 4.70) and color of the fruit.

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“…We collected six unripe (35 days after anthesis [DAA]) and six ripe (50 DAA) fruits from each plant and disinfected them superficially in 1% (w/v) sodium hypochlorite solution for 5 min, followed by three washes with distilled water for 1 min (Silva et al, ). Five fruits from each accession and each fruit development stage were evaluated, and one fruit was used as control (mock inoculation with sterilized distilled water).…”

Section: Methodsmentioning

confidence: 99%

Inheritance of anthracnose resistance (Colletotrichum scovillei) in ripe and unripe Capsicum annuum fruits

Giacomin

Ruas

Moreira

et al. 2020

Journal of Phytopathology

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Anthracnose, caused by Colletotrichum spp., is one of the most common diseases affecting sweet pepper and chilli pepper production worldwide, especially in tropical and subtropical zones. This disease results in severe fruit damage both pre‐ and postharvest. The development of resistant cultivars is the most effective strategy for disease control, which requires knowing the genetic basis of resistance. In this study, we analysed the inheritance of resistance of Capsicum annuum to Colletotrichum scovillei at two fruit development stages. The ripe and unripe fruits were inoculated by conidia suspension, and anthracnose severity was evaluated for 8 days using a score scale. It was found that the inheritance of resistance has independent expression in ripe and unripe fruits. In both cases, two main genes are responsible for resistance with polygenic effects. Genetic control, with a quantitative aspect, is more affected by dominance than the additive effects, in both fruit development stages of C. annuum.

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Resistance in Capsicum spp. to anthracnose affected by different stages of fruit development during pre- and post-harvest

Cited by 29 publications

References 19 publications

Research Article Multiple genetic resistances in Capsicum spp.

Research Article Multiple genetic resistances in Capsicum spp.

Screening of chilli pepper genotypes against anthracnose (Colletotrichum brevisporum)

Inheritance of anthracnose resistance (Colletotrichum scovillei) in ripe and unripe Capsicum annuum fruits

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