Reaction of Some Coffea arabica Genotypes to Strains of Colletotrichum kahawae, the Cause of Coffee Berry Disease

Omondi, Chrispine O.; Ayiecho, P.O.; Mwang’ombe, A. W.; Hindorf, H.

doi:10.1046/j.1439-0434.2000.00464.x

Cited by 13 publications

(16 citation statements)

References 4 publications

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“…In more exhaustive studies differences were only found in the aggressiveness in C. kahawae isolates (Manga et al, 1998). Omondi et al (1997Omondi et al ( , 2000 working with local Kenyan isolates concluded that variation in pathogenicity among isolates of C. kahawae was predominantly due to aggressiveness, and differential pathogenicity, although small, was highly significant and could not be ignored. However they did not find positive evidence of physiologic races for C. kahawae.…”

Section: Fungal Variabilitymentioning

confidence: 99%

Coffee resistance to the main diseases: leaf rust and coffee berry disease

Silva

Várzea

Guerra‐Guimarães

et al. 2006

Braz. J. Plant Physiol.

188

147

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Considerable success has been obtained in the use of classical breeding to control economically important plant diseases, such as the coffee leaf rust and the coffee berry disease (CBD). There is a strong consensus that growing genetically resistant varieties is the most appropriate cost effective means of managing plant diseases and is one of the key components of crop improvement. It has also been recognized that a better knowledge of both, the pathogens and the plant defence mechanisms will allow the development of novel approaches to enhance the durability of resistance. After a brief description of concepts in the field of plant disease resistance, we attempt to give a view of the research progress on coffee leaf rust and CBD concerned with the pathogens infection and variability, coffee breeding for resistance and coffee resistance mechanisms. Key words: Coffea, Colletotrichum kahawae, Hemileia vastatrix, coffee breeding, resistance.Resistência do cafeeiro para suas principais doenças: ferrugem alaranjada das folhas e antracnose dos frutos: Sucesso considerável tem sido obtido no uso do melhoramento clássico para o controle de doenças de plantas economicamente importantes, tais como a ferrugem alaranjada das folhas e a antracnose dos frutos do cafeeiro (CBD). Há um grande consenso de que o uso de plantas geneticamente resistentes é o meio mais apropriado e eficaz em termos de custos do controle das doenças das plantas, sendo também um dos elementos chave do melhoramento da produção agrícola. Tem sido também reconhecido que um melhor conhecimento do agente patogênico e dos mecanismos de defesa das plantas permitirá o desenvolvimento de novas abordagens no sentido de aumentar a durabilidade da resistência. Após uma breve descrição de conceitos na área da resistência das plantas às doenças, nesta revisão tentou-se dar uma idéia do progresso na investigação da ferrugem alaranjada do cafeeiro e do CBD relativamente ao processo de infecção e variabilidade dos agentes patogênicos, melhoramento do cafeeiro para a resistência e mecanismos de resistência do cafeeiro. Palavras-chave: Coffea, Colletotrichum kahawae, Hemileia vastatrix, melhoramento do cafeeiro, resistência.

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Section: Fungal Variabilitymentioning

confidence: 99%

Coffee resistance to the main diseases: leaf rust and coffee berry disease

Silva

Várzea

Guerra‐Guimarães

et al. 2006

Braz. J. Plant Physiol.

188

147

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“…Studies done previously on C. arabica genotypes variety x C. kahawae strains reported existence of interaction, but found to be less significant to suggest conclusively that differential interaction exists (Omondi et al, 2000).…”

Section: Discussionmentioning

confidence: 69%

Responses of Compact Coffee Clones Against Coffee Berry and Coffee Leaf Rust Diseases in Tanzania

Kilambo¹,

Rebeun²,

Mamiro³

2013

JPS

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The utilization of resistant Arabica coffee (Coffea arabica) varieties is considered as the most economical control for coffee berry disease (CBD) and coffee leaf rust (CLR) in Tanzania. The resistance levels of varieties at field and laboratory conditions were assessed through their phenotypic disease reaction response to CBD and CLR. In this study sixteen (16) compact hybrids of C. arabica plus four (4) standard cultivars were evaluated under a range of environmental conditions in on-station and on-farm trials in Tanzania. Also four (4) Colletotrichum kahawae strains of the pathogen responsible for CBD infection;

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“…The divergence of HDT derivatives is also of importance in breeding programmes. For example, Ruiru 11 progenies comprise of 60 lines (Omondi et al, 2001) and therefore more intensive molecular analysis could help in characterizing them and consequently selecting elite lines.…”

Section: Discussionmentioning

confidence: 99%

Genetic diversity among commercial coffee varieties, advanced selections and museum collections in Kenya using molecular markers

W¹

2012

Int. J. Biodvers. Conserv.

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Molecular markers have effectively been applied to study genetic diversity and as markers of particular traits. This study assessed the diversity of twenty four (24) coffee genotypes using 10 Random Amplified Polymorphic DNA (RAPD) primers and 2 microsatellites (M24 and Sat 235). A total of 35 polymorphic bands were generated by the RAPD primers. The bands were scored for presence (1) and absence (0) of amplified products. The data was subjected to cluster analysis using R statistical software and a dendrogram constructed using Unweighted Pair Group Method with Arithmetic Average (UPGMA). The genotypes separated into three main clusters. C. eugenioides clustered alone in the first cluster while un-introgressed Arabica genotypes dominated the second cluster. The third cluster comprised of Coffea canephora (Robusta) and introgressed genotypes, Ruiru 11, Hibrido de Timor and Catimor. Robusta and C. eugenioides were the most distantly related and generated most of the diversity observed. The similarities observed among un-introgressed Arabica genotypes attest to the narrow genetic diversity within Coffea arabica. The divergence observed among introgressed genotypes could be utilized in future breeding programmes.

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Reaction of Some Coffea arabica Genotypes to Strains of Colletotrichum kahawae, the Cause of Coffee Berry Disease

Cited by 13 publications

References 4 publications

Coffee resistance to the main diseases: leaf rust and coffee berry disease

Coffee resistance to the main diseases: leaf rust and coffee berry disease

Responses of Compact Coffee Clones Against Coffee Berry and Coffee Leaf Rust Diseases in Tanzania

Genetic diversity among commercial coffee varieties, advanced selections and museum collections in Kenya using molecular markers

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