Reação de cultivares de feijoeiro comum à mancha angular em casa de vegetação

Reis-Prado, Fabiana G.; Sartorato, A.; Costa, J. G. C. da; Rava, C. A.; Sibov, Sérgio Tadeu; Pinheiro, José Baldin; Carneiro, Monalisa Sampaio

doi:10.1590/s0100-41582006000300011

Cited by 5 publications

(3 citation statements)

References 4 publications

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“…According to Colombari Filho et al (2010), the characterization of diversity may be more useful when evaluated in combination with genotype and phenotypic information of interest. Even though there are several studies on the genetic (Corrêa et al 2001;Mahuku et al 2011;Miller et al 2018;Nay et al 2019b) and phenotypic (Sannazzaro et al 2003;Reis-Prado et al 2006;Chataika et al 2010;Pereira et al 2019a, b) characterization of ALS resistance, as well as evaluation of the general genetic diversity of common bean accessions (Campa et al 2018;Raatz et al 2019;Valentini et al 2018;Gioia et al 2019), this is the first study involving phenotypic resistance evaluation in combination with genetic diversity of loci associated with ALS resistance.…”

Section: Discussionmentioning

confidence: 99%

Genetic diversity of Pseudocercospora griseola resistance loci in common beans

Almeida

Arruda

Paulino

et al. 2020

Trop. plant pathol.

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Common bean (Phaseolus vulgaris L.) is one of the most widely grown legumes in the world. Although the crop has high yield potential, average yields in Brazil are low due to several diseases. Angular leaf spot (ALS), caused by Pseudocercospora griseola, is among the most important diseases. A set of 81 accessions from the Instituto Agronômico (IAC, Campinas, SP) germplasm bank were evaluated for ALS resistance and genotyped by 12 microsatellites previously associated with ALS QTL resistance. Allele frequencies, number of alleles per locus, expected heterozygosity (He), and Shannon's Information Index (I) were calculated. The average Ho was 0.12, and the He was 0.54. The STRUCTURE analysis and UPGMA clustering based on Nei's genetic distance indicated a moderate degree of genetic diversity, with 4 and 5 main groups, respectively. Evaluation of the severity of ALS showed that 17% of the accessions had resistance. Cultivars were recommended for breeding crosses aimed at gaining in genetic diversity and resistance to ALS.

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Section: Discussionmentioning

confidence: 99%

Genetic diversity of Pseudocercospora griseola resistance loci in common beans

Almeida

Arruda

Paulino

et al. 2020

Trop. plant pathol.

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“…O patógeno provoca lesões em folhas, vagens, ramos e pecíolos e pode causar grave desfolhamento (Jesus Junior et al 2003). Sem controle adequado da doença, as perdas podem chegar a 70% da produção (Sartorato & Rava 1992), dependendo da susceptibilidade das cultivares e das condições ambientais (Reis-Prado et al 2006).…”

Section: Control Of Angular Leaf Spot By Using Protective Mixtures Inunclassified

Plant stimulant effect on Brasil-Bahia tobacco growth and production

Vieira

Almeida

2010

Pesqui. Agropecu. Trop.

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INTRODUÇÃONas últimas décadas, o crescimento populacional gerou a necessidade de maior produção de alimentos, que foi conseguida pela intensificação de atividades agrícolas. A expansão da fronteira agrícola, associada à intensificação na utilização dos recursos do meio, ocasionou desequilíbrios e redução da diversidade biológica nos agroecossistemas (Altieri 1999) ) e testemunha sem controle da doença. Para a cultivar Pérola, apesar de a eficácia de controle da doença ser semelhante à da calda sulfocálcica, somente a calda bordalesa proporcionou acréscimo no rendimento de grãos de 17,7%, em relação à testemunha, propiciando rentabilidade de R$ 386,40 por hectare. Para a cultivar BRS Valente, as caldas bordalesa e sulfocálcica, aplicadas quinzenalmente, proporcionaram acréscimo ao rendimento de grãos de 25,0% e 21,8%, em relação à testemunha, além de apresentarem eficácia de controle de 62% da mancha-angular, propiciando rentabilidade de R$ 573,15 e R$ 464,10 por hectare, respectivamente. PALAVRAS-CHAVE: Phaeoisariopsis griseola; Phaseolus vulgaris; agricultura orgânica; calda bordalesa; calda sulfocálcica. CONTROL OF ANGULAR LEAF SPOT BY USING PROTECTIVE MIXTURES IN IRRIGATED COMMON BEAN UNDER ORGANIC CROPPING SYSTEMA field experiment was carried out with the Pérola and BRS Valente cultivars, aiming to evaluate the efficiency of protective mixtures, in two spraying periods, for controlling angular leaf spot caused by Phaeoisariopsis griseola in common bean, under organic cropping system, in the dry season and under irrigation. A randomized complete block design, in a 2x4 factorial scheme, with four replications, was used, in which the first factor was the spraying intervals (15 and 30 days), and the second the protective mixtures (bordeaux, lime sulfur, and a mixture with silicate Rocksil ® ) and control without any mixture. To the Pérola cultivar, the bordeaux mixture provided an increase of 17,7% in grain yield, when compared to the non-sprayed control, reducing significantly the angular leaf spot severity, achieving a control efficiency of 75%, and propitiating a profit of R$ 386.40 ha , respectively, when applied at each 15 days.

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“…The best effective way to control the disease is through resistant cultivars; the genetic characterization of resistance is of considerable importance for bean breeding (Oblessuc et al, 2012). Several sources of resistance have been reported (Pastor-Corrales and Jara, 1995;Pastor-Corrales et al, 1998;Mahuku et al, 2003;Oliveira et al, 2004;Reis-Prado et al, 2006;Sartorato, 2006;Bruzi et al, 2007;Oblessuc et al, 2012;Keller et al, 2015;Bassi et al, 2017), including the AND 277 cultivar, which is one of the cultivars most used by ALS breeding programs and genetic control studies (Carvalho et al, 1998;Aggarwal et al, 2004;Arruda et al, 2008;Gonçalves-Vidigal et al, 2011;Sanglard et al, 2013;Bassi et al, 2017;Silva et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Angular Leaf Spot Resistance Loci Associated With Different Plant Growth Stages in Common Bean

et al. 2021

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Angular leaf spot (ALS) is a disease that causes major yield losses in the common bean crop. Studies based on different isolates and populations have already been carried out to elucidate the genetic mechanisms of resistance to ALS. However, understanding of the interaction of this resistance with the reproductive stages of common bean is lacking. The aim of the present study was to identify ALS resistance loci at different plant growth stages (PGS) by association and linkage mapping approaches. An BC2F3 inter-gene pool cross population (AND 277 × IAC-Milênio – AM population) profiled with 1,091 SNPs from genotyping by sequencing (GBS) was used for linkage mapping, and a carioca diversity panel (CDP) genotyped by 5,398 SNPs from BeadChip assay technology was used for association mapping. Both populations were evaluated for ALS resistance at the V2 and V3 PGSs (controlled conditions) and R8 PGS (field conditions). Different QTL (quantitative trait loci) were detected for the three PGSs and both populations, showing a different quantitative profile of the disease at different plant growth stages. For the three PGS, multiple interval mapping (MIM) identified seven significant QTL, and the Genome-wide association study (GWAS) identified fourteen associate SNPs. Several loci validated regions of previous studies, and Phg-1, Phg-2, Phg-4, and Phg-5, among the 5 loci of greatest effects reported in the literature, were detected in the CDP. The AND 277 cultivar contained both the Phg-1 and the Phg-5 QTL, which is reported for the first time in the descendant cultivar CAL143 as ALS10.1UC. The novel QTL named ALS11.1AM was located at the beginning of chromosome Pv11. Gene annotation revealed several putative resistance genes involved in the ALS response at the three PGSs, and with the markers and loci identified, new specific molecular markers can be developed, representing a powerful tool for common bean crop improvement and for gain in ALS resistance.

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Reação de cultivares de feijoeiro comum à mancha angular em casa de vegetação

Cited by 5 publications

References 4 publications

Genetic diversity of Pseudocercospora griseola resistance loci in common beans

Genetic diversity of Pseudocercospora griseola resistance loci in common beans

Plant stimulant effect on Brasil-Bahia tobacco growth and production

Angular Leaf Spot Resistance Loci Associated With Different Plant Growth Stages in Common Bean

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