Anthracnose Resistance in Legumes for Cropping System Diversification

Pandey, Abhay K.; Kumar, Abhishek; Mbeyagala, E. K.; Barbetti, Martin J.; Basandrai, Ashwani K.; Basandrai, Daisy; Nair, Ramakrishnan M.; Lamichhane, Jay Ram

doi:10.1080/07352689.2023.2228122

Cited by 6 publications

(1 citation statement)

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“…In the search for resistance against a pathogen and for effective disease management, a comprehensive understanding of various facets of the pathogen, including its taxonomy, lifestyle, and the strategies employed for plant infection and establishment, becomes imperative [8].…”

Section: Colletotrichum Lupini: the Causative Agent For Anthracnose I...mentioning

confidence: 99%

Insights into the Pathogenic Mechanisms and the Control Strat-Egies of Anthracnose in Lupins – A Comprehensive Review

Samad,

Gentzbittel,

Bondarenko

et al. 2023

Preprint

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Anthracnose stands as the primary obstacle to lupin cultivation, impeding development despite the considerable agronomic, ecological, and economic potential of such legume crops. This review explores recent efforts to unravel the complexities of anthracnose in domesticated lupins, focusing on both the plant perspective and the causative pathogenic agent, Colletotrichum lupini. Leveraging cutting-edge technologies has yielded crucial insights into various facets of this devastating disease, encompassing plant and pathogen biology, genetic and molecular regulations of the interaction, fungal diversity and population dynamics, and screening of plant genetic resources for anthracnose resistance. The lack of effective disease control measures, relying primarily on the use of disease-free seeds, highlights the need to develop anthracnose-resistant varieties. However, challenges arise from the intricacy of lupin's response to the disease, influenced by polygenic inheritance, in spite of loci with major effects, and environmental factors. The slow pace of genetic improvement underscores the need for more efficient breeding processes, including biotechnological approaches. This review offers a comprehensive overview of current progress and knowledge gaps, stressing the urgent need to further enhance understanding of C. lupini pathogenic mechanisms and lupin‘s resistance. Integrating advanced technologies and accelerated research efforts is paramount for achieving efficient disease management and sustainable lupin cultivation in the face of anthracnose challenges.

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Section: Colletotrichum Lupini: the Causative Agent For Anthracnose I...mentioning

confidence: 99%

Insights into the Pathogenic Mechanisms and the Control Strat-Egies of Anthracnose in Lupins – A Comprehensive Review

Samad,

Gentzbittel,

Bondarenko

et al. 2023

Preprint

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Recurrent selection for broad‐spectrum resistance to anthracnose in common bean

Costa,

Ramalho,

Abreu

et al. 2024

Crop Science

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Recurrent selection is an effective and well‐known breeding method recommended for quantitative traits. However, the method has not been applied so far for traits typically controlled by numerous major loci, which is the case of resistance to anthracnose in common bean (Phaseolus vulgaris L.). In this study, we report the effectiveness of a recurrent selection program in developing common bean progenies with resistance to multiple races of Colletotrichum lindemuthianum, the causal agent of anthracnose in this crop. A total of 10 common bean lines, with distinct and complementary resistance profiles to races 65, 73, 81, and 89 of C. lindemuthianum, were intercrossed to establish a base population (Cycle 0). From Cycle 0, five iterative cycles of recombination, inoculation, and selection were carried out. Our results demonstrate that this recurrent selection approach can effectively combine resistance in common bean to different isolates from multiple races of C. lindemuthianum. A progressive increase in the number of progenies resistant to a higher number of C. lindemuthianum isolates was observed over the selection cycles. The genetic gain from CI to CV was 38.75% when the progenies were evaluated against a mixture of isolates from the four races of the pathogen. The reliance on specific genes makes race‐specific anthracnose resistance in common bean vulnerable to breakdown. By allowing optimal combinations of different anthracnose resistance genes, this dynamic recurrent selection approach is an attractive option for the development of common bean cultivars with increased stability and durability for anthracnose resistance.

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