Implications of early selection for resistance to anthracnose in genetic breeding of common bean

Pádua, José Maria Villela; Ramalho, Magno Antônio Patto; Abreu, Ângela de Fátima Barbosa

doi:10.1590/1984-70332015v15n3a29

Cited by 3 publications

(4 citation statements)

References 16 publications

(17 reference statements)

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“…It is worth mentioning that in many generations from previous cycles ANT likely occurred and, most probably, in the selection for grain yield, resistant progenies might have been included unconsciously. In the literature there are reports of studies in the region aiming at the selection of progenies for grain yield that were efficient in the selection for resistance to ANT as well (Abreu et al 2003;Pádua et al 2015).…”

Section: Discussionmentioning

confidence: 99%

Variability for angular leaf spot and anthracnose resistance among common bean progenies with different levels of endogamy

Pereira

Costa

Pádua

et al. 2019

Trop. plant pathol.

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This study aimed at evaluating the variability in resistance of common bean progenies and plants to diseases caused by Pseudocercospora griseola and Colletotrichum lindemuthianum. It also sought to infer whether S 0 plants were heterozygous for the possible resistance loci and the frequency resistant plants varies with the bulk opening generation. Progenies from the fourteenth yield recurrent selection cycle were used. One hundred S 2:7 and one hundred S 5:9 progenies derived from ten S 0:2 plants were evaluated. Seedlings were inoculated separately with the 63-63 race of P. griseola and race 65 of C.lindemuthianum. Variance analyses were conducted for disease severity scores and both the genotypic and phenotypic parameters were estimated. The progenies showed variable resistance levels to the disease caused by both pathogens. Such variability was detected among plants of the population and among descendants of some S 0 plants, thus suggesting that they were likely heterozygous for the resistance loci. The frequency of resistant progenies/plants in the population was high, even though the selection was not specific these pathogens. The time of bulk opening did not significantly affect the reaction to the disease by both pathogen. This information is useful for future recurrent selection cycles.

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Section: Discussionmentioning

confidence: 99%

Variability for angular leaf spot and anthracnose resistance among common bean progenies with different levels of endogamy

Pereira

Costa

Pádua

et al. 2019

Trop. plant pathol.

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“…The use of cultivars resistant to C. lindemuthianum is the most effective, safe, and economically viable strategy to control anthracnose (Ferreira et al., 2013; Miklas et al., 2006). However, the genetic variability of the fungus is evidenced by the abundant physiological races already identified (Ishikawa et al., 2008; Pádua et al., 2015), rendering it difficult to obtain cultivars with durable resistance. In addition, studies have shown the occurrence of variability within races (L. Costa et al., 2017; Davide & Souza, 2009; Ishikawa et al., 2011; Ishikawa et al., 2013), which makes it particularly difficult to obtain cultivars with durable resistance to the pathogen.…”

Section: Introductionmentioning

confidence: 99%

“…The main anthracnose management strategies include the use of healthy seeds, resistant cultivars, and the application of fungicides (Sartorato et al, 1996). Other methodologies include careful handling of implements to avoid propagation between production fields and crop rotation with nonhost plants (L. Costa et al., 2017; Pádua et al., 2015; Paula et al., 2015). However, in Brazil, most of the production occurs in areas of small growers who neither adopt many of these practices nor perform chemical control due to the high production costs.…”

Section: Introductionmentioning

confidence: 99%

Potential parents of carioca bean for use in breeding aiming resistance to Colletotrichum lindemuthianum

et al. 2022

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Carioca common bean (Phaseolus vulgaris L.) is the most produced and consumed in Brazil. The production of carioca bean is affected by fungal diseases such as anthracnose, caused by the fungus Colletotrichum lindemuthianum. Most sources resistant to anthracnose, used in crosses by breeding programs are not derived from the commercial group or are poorly productive and less adapted. Thus, the objective of this study was to characterize 40 carioca bean cultivars already recommended in Brazil for their reaction to C. lindemuthianum races 65, 73, 81, and 89. The cultivars and the resistant control, BRS Esplendor, were inoculated in a greenhouse with two different experiments for each race. Seedlings with fully expanded primary leaves were inoculated with a suspension of each pathogen race and assessed after 12 d. Among the 40 cultivars assessed, 12.5, 2.5, 12.5, and 15% resistant to one, two, three, and four races of C. lindemuthianum, respectively. The cultivars IAC Formoso, IAC‐Carioca Pyatã, IAC‐Apuã, VC 15, BRS Notável, and IPR Campos Gerais were resistant to the four races, constituting parental sources of resistance to the pathogen. In regions that favor the occurrence of anthracnose in common bean, cultivars with certain levels of resistance should be selected. Therefore, the important information obtained will be made available to growers and those offering technical assistance to growers.

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“…Moraes et al (2014) reported that the occurrence of high genetic correlations, significant for traits in evaluation periods, favor the holding of early selection. For example, for common bean, Pádua et al (2015) report that the early selection for anthracnose resistance in the initial stages of the breeding program promotes benefits since it allows to eliminate the susceptive plants, which usually present low grain yields, in the first generations of selection and, consequently, to reduce the expenses in the advanced generations.…”

Section: Introductionmentioning

confidence: 99%

Selection in the First Year of Passion Fruit Production: A Potential Strategy for Breeding

Rosado¹,

Rosado²,

Matias³

et al. 2018

JAS

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The objective was to compare the results obtained in the first and second year of production, with the aggregate production at the end of the two years of cultivation to determine the stage of the crop cycle most suitable for selection processes. We evaluated the fruits of 26 German-sib progenies of passion fruit during the peak production of the 1st year (December/2004) and the 2nd year (April/2006). There was little or no difference between the means of selected families in the two production years in terms of the evaluated traits. Selection should therefore be performed in the fist production year to reduce cultivation costs, making passion fruit cultivation more economically feasible.

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Implications of early selection for resistance to anthracnose in genetic breeding of common bean

Abstract: -It is questionable if early selection for resistance to ; in F 3:6, 196 treatments (64 A, 64 B, 64 C and 4 T); in F 3:7, 81 treatments (26 A, 26 B, 26 C and 3 T)

Cited by 3 publications

References 16 publications

Variability for angular leaf spot and anthracnose resistance among common bean progenies with different levels of endogamy

Variability for angular leaf spot and anthracnose resistance among common bean progenies with different levels of endogamy

Potential parents of carioca bean for use in breeding aiming resistance to Colletotrichum lindemuthianum

Selection in the First Year of Passion Fruit Production: A Potential Strategy for Breeding

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