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Alzate-Marin, Ana Lília; Costa, Márcia Regina; Arruda, Klever Márcio Antunes; Barros, Everaldo Gonçalves de; Moreira, Maurílio Alves

doi:10.1023/a:1025551006444

Cited by 56 publications

(6 citation statements)

References 14 publications

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“…The original Co-3 gene described in Mexico 222 was mapped using the F 2:3 population of Mexico 222 × Widusa, flanked by markers Pv-ctt001 and SW12 700 [9] located at 0.45 and 0.72 Mb, respectively (S1 Table). The original gene Co-10 from the genotype Ouro Negro was linked to the SCAR marker SF10 [27] that cannot be physically positioned owing to its multiple alignments across chromosome Pv04. The Co-10 gene was considered an allele of Co-3 (renamed as Co-3 4 ) and was mapped at 0 cM of the g2303 marker (3.63 Mb) using races 7 and 73 of the pathogen [28].…”

Section: Discussionmentioning

confidence: 99%

“…At the proximal end of Pv04, the Co-3 gene (or Mexique 1 ) was described in the cultivar Mexico 222 using the isolates 14 and 51 [24], and later, two race-specific resistance genes to races 19 and 31 (R 19 and R 31 ) from Mexico 222 were mapped on LG Pv04 between the markers Pv-ctt001 and SW12 700 [9]. Four alleles were proposed for the Co-3 locus based on the resistance spectrum; Co-3 2 in the cultivar Mex227, which is currently not available [25]; Co-3 3 (first named as Co-9) from BAT93 linked to markers 254-G15F and GA-G16 [26]; Co-3 4 (first named a Co-10 ) in cultivar Ouro Negro linked to marker g2303 and flanked by KASP152 and KASP153 [27, 28, 29]; and Co-3 5 , previously identified as Co-7 in G2333 [30, 31]. Other Co- genes were mapped in chromosome Pv04: the closely linked genes Co-z and Co-y from the genotype JaloEEP558 linked to D1174 [18, 32]; Co-15 from Corinthiano that is linked to marker g2685 [33]; and the Co-16 gene reported in the cultivar Crioulo 159 as linked to marker g2467 [34].…”

Section: Introductionmentioning

confidence: 99%

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Integrating genetic and physical positions of the anthracnose resistance genes described in bean chromosomes Pv01 and Pv04

2019

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A complex landscape of anthracnose resistance genes ( Co- ) located at the telomeric regions of the bean chromosomes Pv01 and Pv04 has been reported. The aim of this work was to investigate the genetic and physical positions of genes conferring resistance to races 6, 38, 39, 357, 65, and 73 as well as the relationships among the resistance genes identified herein and the previously described Co- genes in these telomeric regions. The linkage analysis using a genetic map of 497 SNPs from the recombinant inbred line population Xana/BAT93 revealed that the gene conferring resistance to race 65 in cultivar Xana ( Co-1 65-X ) was located in the Co-1 cluster, at the distal end of chromosome Pv01. The fine mapping of Co-1 65-X indicated that it was positioned between the physical positions 49,512,545 and 49,658,821 bp. This delimited physical position agrees with the positions of the previously mapped genes Co- 1 4 , Co-x , Co-14 , Co-1 HY , and Co-Pa . Responses to races 6, 38, 39, and 357 in BAT93 exhibited co-segregation suggesting that the same gene, or very closely linked genes, were involved in the control. The linkage analysis showed that the resistance gene to race 38 in the genotype BAT93 ( Co-3 38-B ) was located at the beginning of chromosome Pv04, in the genetic position of the Co-3 cluster, and was flanked by markers with physical positions between 1,286,490 and 2,047,754 bp. Thus, the genes Co-3, Co-9, Co-10, Co-16, and Co-3 38-B , found in this work, form part of the same anthracnose resistance cluster at the beginning of chromosome Pv04, which is consistent with the discontinuous distribution of typical R genes annotated in the underlying genomic region. Resistance loci involved in the response to race 73 in the genotypes Xana (R) and BAT93 (R) were mapped to the same positions on clusters Co-1 and Co-3, respectively. The positioning of the resistance genes in the bean genome based on fine linkage mapping should play an important role in the characterization and differentiation of the anthracnose resistance genes. The assignment of Co- genes to clusters of race specific genes can help simplify the current scenario of anthracnose resistance.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Integrating genetic and physical positions of the anthracnose resistance genes described in bean chromosomes Pv01 and Pv04

2019

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“…On this position were mapped the well-known resistance genes Co-3 and Co-9 [14]. In this LG, but in a distal position from Co-9 , was mapped Co-10 from cultivar Ouro Negro as a single gene conferring resistance against races 23, 64, 73, 81 and 89 [22,24]. To date, independence between Co-10 and resistance genes included in the Co-3 cluster has not been clearly established.…”

Section: Discussionmentioning

confidence: 99%

“…Most identified anthracnose resistance genes were located in the genetic map of common bean: genes Co-1, Co-x and Co-w were mapped on linkage group (LG) Pv01 [18,19]; Co-u was located on Pv02 [18]; Co-13 on Pv03 [20]; Co-2 on Pv11 [21]; Co-3 , Co-9 , Co-y , Co-z and Co-10 on Pv04 [19,22-26]; Co-4 on Pv08 [19,27]; and Co-5 , Co-6 and Co-v on Pv07 [28,29]. Mapping of genes conferring resistance to several specific races revealed that some of these Co- genes were organized in clusters of race-specific resistance genes.…”

Section: Introductionmentioning

confidence: 99%

Genetic analysis of the response to eleven Colletotrichum lindemuthianum races in a RIL population of common bean (Phaseolus vulgaris L.)

et al. 2014

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BackgroundBean anthracnose is caused by the fungus Colletotrichum lindemuthianum (Sacc. & Magnus) Lams.- Scrib. Resistance to C. lindemuthianum in common bean (Phaseolus vulgaris L.) generally follows a qualitative mode of inheritance. The pathogen shows extensive pathogenic variation and up to 20 anthracnose resistance loci (named Co-), conferring resistance to specific races, have been described. Anthracnose resistance has generally been investigated by analyzing a limited number of isolates or races in segregating populations. In this work, we analyzed the response against eleven C. lindemuthianum races in a recombinant inbred line (RIL) common bean population derived from the cross Xana × Cornell 49242 in which a saturated linkage map was previously developed.ResultsA systematic genetic analysis was carried out to dissect the complex resistance segregations observed, which included contingency analyses, subpopulations and genetic mapping. Twenty two resistance genes were identified, some with a complementary mode of action. The Cornell 49242 genotype carries a complex cluster of resistance genes at the end of linkage group (LG) Pv11 corresponding to the previously described anthracnose resistance cluster Co-2. In this position, specific resistance genes to races 3, 6, 7, 19, 38, 39, 65, 357, 449 and 453 were identified, with one of them showing a complementary mode of action. In addition, Cornell 49242 had an independent gene on LG Pv09 showing a complementary mode of action for resistance to race 453. Resistance genes in genotype Xana were located on three regions involving LGs Pv01, Pv02 and Pv04. All resistance genes identified in Xana showed a complementary mode of action, except for two controlling resistance to races 65 and 73 located on LG Pv01, in the position of the previously described anthracnose resistance cluster Co-1.ConclusionsResults shown herein reveal a complex and specific interaction between bean and fungus genotypes leading to anthracnose resistance. Organization of specific resistance genes in clusters including resistance genes with different modes of action (dominant and complementary genes) was also confirmed. Finally, new locations for anthracnose resistance genes were identified in LG Pv09.

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“…Ouro Negro is a highly productive black-seeded Mesoamerican cultivar with desirable agronomic and cooking characteristics that was selected from CIAT accession G3680, also known as Honduras 35 (Alzate-Marin et al, 2003). The Phg-3 ALS, Co-3 4 anthracnose, and Ur-14 rust resistance alleles present in Ouro Negro are very important for common bean breeding programs in Brazil (Alzate-Marin et al, 2003;Souza et al, 2011;Gonçalves-Vidigal et al, 2013), conferring resistance to at least 21 C. lindemuthianum races and seven P. griseola races, including highly virulent race 63-63 (Faleiro et al, 2001(Faleiro et al, , 2003Gonçalves-Vidigal and Kelly, 2006;Gonçalves-Vidigal et al, 2009Ragagnin et al, 2009).…”

Section: Breeding Valuementioning

confidence: 99%

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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Cited by 56 publications

References 14 publications

Integrating genetic and physical positions of the anthracnose resistance genes described in bean chromosomes Pv01 and Pv04

Integrating genetic and physical positions of the anthracnose resistance genes described in bean chromosomes Pv01 and Pv04

Genetic analysis of the response to eleven Colletotrichum lindemuthianum races in a RIL population of common bean (Phaseolus vulgaris L.)

A Review of Angular Leaf Spot Resistance in Common Bean

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