Linkage and mapping of quantitative trait loci associated with angular leaf spot and powdery mildew resistance in common beans

Bassi, D.; Briñez, Boris; Rosa, Juliana Santa; Oblessuc, Paula Rodrigues; Almeida, Caléo Panhoca de; Nucci, Stella Maris; Silva, Larissa Chariel Domingos da; Chiorato, Alisson Fernando; Vianello, R. P.; Camargo, L. E. A.; Blair, Matthew W.; Benchimol-Reis, Luciana Lasry

doi:10.1590/1678-4685-gmb-2015-0314

Cited by 19 publications

(41 citation statements)

References 73 publications

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“…The currently approved ALS resistance loci include three dominant and independent loci (Phg-1 - Carvalho et al 1998;Phg-2 -Sartorato et al 2000;Phg-3 -Gonçalves-Vidigal et al 2013), as well as two major QTLs, Phg-4 and Phg-5 (Souza et al 2016;Oblessuc et al 2012;Keller et al 2015;Bassi et al 2017). In addition to these resistance loci, some cultivars are sources of resistance and have been reported on studies of phenotypic resistance evaluations (Aggarwal et al 2004;Sartorato 2004;Tryphone et al 2016;Pereira et al 2019a, b).…”

Section: Introductionmentioning

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: Introductionmentioning

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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“…The high phenotypic variance and negative effects (additive and dominance) of the QTLs indicated their involvement in resistance to SBR. The negative values for the additive and dominance effects of the QTLs (Table 5) were also evidences that both additive and dominance effects are important in the inheritance of resistance to SBR (Bassi et al, 2017).…”

Section: Discussionmentioning

confidence: 75%

Identification and mapping of quantitative trait loci associated with soybean rust (Phakopsora pachyrhizi) resistance in genotype UG 5

Gebremedhn¹,

Msiska²,

Weldekidan³

et al. 2018

Afr. J. Biotechnol.

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Soybean rust, Phakopsora pachyrhizi, is one of the most serious and widespread foliar diseases of soybean causing high yield losses worldwide. The objective of this study was to identify and map quantitative trait loci (QTLs) resistant to soybean rust in genotype UG 5. Ninety-seven F 2 mapping plants, obtained from a cross between Wondersoya and UG 5, were used for this study. Quantitative trait locus analysis using QTL IciMapping software identified three putative QTLs associated with soybean rust (SBR) on chromosomes 6, 9 and 18 with logarithms of odds (LOD) scores ranging from 3.47 to 8.23 and phenotypic variance explained by the QTLs ranging from 18.3 to 25.6%. The putative QTL detected on chromosome 9 is novel and has not been reported elsewhere. The putative QTLs identified in this study could help to facilitate SBR resistance breeding towards efficient markerassisted selection approach and gene pyramiding leading to the development of durable resistance.

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“…1). In another study using RILs from the AND 277 (resistant) × SEA 5 cross (susceptible) inoculated with race 1‐21, a minor QTL was found associated with marker IAC159 on chromosome Pv05 (Bassi et al, 2017). Quantitative trait locus mapping in G5686 × Sprite revealed a minor QTL in the same genomic region that explained 3.7% of the variance associated with Marker 31 (Keller et al, 2015).…”

Section: Other Reported Angular Leaf Spot Resistance Loci Tagged By Mmentioning

confidence: 99%

“…In the AND 277 × SEA 5 RIL population, another minor QTL associated with marker BAR3800 was found on chromosome 6 (Bassi et al, 2017).…”

Section: Other Reported Angular Leaf Spot Resistance Loci Tagged By Mmentioning

confidence: 99%

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A Review of Angular Leaf Spot Resistance in Common Bean

et al. 2019

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Angular leaf spot (ALS), caused by Pseudocercospora griseola, is one of the most devastating diseases of common bean (Phaseolus vulgaris L.) in tropical and subtropical production areas. Breeding for ALS resistance is difficult due to the extensive virulence diversity of P. griseola and the recurrent appearance of new virulent races. Five major loci, Phg‐1 to Phg‐5, conferring ALS resistance have been named, and markers tightly linked to these loci have been reported. Quantitative trait loci (QTLs) have also been described, but the validation of some QTLs is still pending. The Phg‐1, Phg‐4, and Phg‐5 loci are from common bean cultivars of the Andean gene pool, whereas Phg‐2 and Phg‐3 are from beans of the Mesoamerican gene pool. The reference genome of common bean and high‐throughput sequencing technologies are enabling the development of molecular markers closely linked to the Phg loci, more accurate mapping of the resistance loci, and the comparison of their genomic positions. The objective of this report is to provide a comprehensive review of ALS resistance in common bean. Furthermore, we are reporting three case studies of ALS resistance breeding in Latin America and Africa. This review will serve as a reference for future resistance mapping studies and as a guide for the selection of resistance loci in breeding programs aiming to develop common bean cultivars with durable ALS resistance.

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Linkage and mapping of quantitative trait loci associated with angular leaf spot and powdery mildew resistance in common beans

Cited by 19 publications

References 73 publications

Genetic diversity of Pseudocercospora griseola resistance loci in common beans

Genetic diversity of Pseudocercospora griseola resistance loci in common beans

Identification and mapping of quantitative trait loci associated with soybean rust (Phakopsora pachyrhizi) resistance in genotype UG 5

A Review of Angular Leaf Spot Resistance in Common Bean

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