Ascochyta blight (Ascochyta rabiei (Pass.) Lab.) of Chickpea (Cicer arietinum L.): Breeding Strategies for Resistance

Kanouni, Homayoun; Taleei, Alireza; Okhovat, M

doi:10.3923/ijpbg.2011.1.22

Cited by 32 publications

(25 citation statements)

References 34 publications

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“…For the visual screening of cold tolerance, we used a scale of 1-9, where 1 -tolerant, no visible symptoms of damage; 3 -tolerant, slight foliar damage (11-20% leaflets show withering) and up to 20% branches show withering and drying, no plant killing; 5 -intermediate, 41-60% leaflets and 21-40% branches show withering and drying, up to 5% plant killing; 7 -susceptible, 81-99% leaflets and 61-90% branches show withering and drying, 26-50% plant killing; and 9 -highly susceptible, 100% plant killing (International Center for Agricultural Research in the Dry Areas (ICARDA) manual, 2008). Pathological tests were performed by using the method described by Kanouni et al (2010). NS -number of stems, DF -days from the first effective raining after sowing to 50% flowering, DM -days from the first effective raining after sowing to 90% maturity, SABD -susceptibility to ascochyta blight disease, CT -cold tolerance, PH -plant height, 100 SW -100-seed weight, YLD -seed yield; a -accession number, b -see Figure 3 Table 1 continued Molecular experiments.…”

Section: Methodsmentioning

confidence: 99%

“…The fungus has the potential to attack all above ground parts of the plant which may cause 100% yield loss (Rajesh, Muehlbauer, 2008) and is most prevalent in the areas where cool, cloudy and humid weather occurs during the crop season (Kanouni et al, 2010). Developing ascochyta blight resistant varieties is the most economically and environmentally sound means of controlling the disease.…”

Section: Introductionmentioning

confidence: 99%

“…Ascochyta blight, caused by the fungus Ascochyta rabiei, is a damaging disease of chickpeas in Iran (Kanouni et al, 2010). The fungus has the potential to attack all above ground parts of the plant which may cause 100% yield loss (Rajesh, Muehlbauer, 2008) and is most prevalent in the areas where cool, cloudy and humid weather occurs during the crop season (Kanouni et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

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Simple sequence repeat markers associated with agro-morphological traits in chickpea (Cicer arietinum L.)

Saeed¹,

Darvishzadeh

Basirnia

2013

Zemdirbyste-Agriculture

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Chickpea (Cicer arietinum L.), a cool season grain legume, serves as an important cheap source of protein and energy in developing countries, and plays an important role in the enrichment of soil fertility. In order to identify simple sequence repeat (SSR) markers associated with agro-morphological traits in chickpea, 44 genotypes comprising cultigen, landraces, internationally developed improved lines and wild relatives, were phenotyped for several agro-morphological traits in a randomized complete block design with three replications at Urmia Rainfed Research Station. High genetic variability was observed among the chickpea genotypes for the studied agro-morphological traits. In molecular experiment, genetic variability among genotypes was assessed by using SSR markers. One hundred alleles were generated at 16 SSR loci, with a mean number of alleles per locus of 6.25. Using general linear model (GLM) and applying multiple testing corrections, 10 SSR loci associated with the genes controlling the studied agro-morphological traits were identified. Some identified markers were associated with more than one trait. The identified markers could be of great interest in marker assisted selection (MAS) in chickpea breeding programmes.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Simple sequence repeat markers associated with agro-morphological traits in chickpea (Cicer arietinum L.)

Saeed¹,

Darvishzadeh

Basirnia

2013

Zemdirbyste-Agriculture

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“…Resistance to AB has been increasingly considered a quantitative trait and many QTLs have been identified in different genomic regions (Santra et al 2000;Flandez-Galvez et al 2003a;Udupa and Baum 2003;Pande et al 2005;Taran et al 2007;Kanouni et al 2009Kanouni et al , 2011. Linkage group (LG) 4 has been reported by several researchers to contain QTLs for AB resistance (Santra et al 2000;Tekeoglu et al 2002;Cho et al 2004;Taran et al 2007;Stephens et al 2014), while other reports highlight LG2 (Udupa and Baum 2003;Cho et al 2004) and LG8 (Lichtenzveig et al 2006).…”

Section: Ascochyta Blightmentioning

confidence: 94%

Breeding for biotic stress resistance in chickpea: progress and prospects

Li¹,

Rodda²,

Gnanasambandam

et al. 2015

Euphytica

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Chickpea (Cicer arietinum L.) is the third most economically important food legume in the world. Its yield potential is often limited by various biotic stresses, including fungal and viral diseases, insects, nematodes and parasitic weeds. Incorporating genetic resistance into cultivars is the most effective and economical way of controlling biotic stresses and this is a major objective in many breeding programs. Extensive searches for resistances have been conducted by screening commercial varieties, landraces and closely related species. Resistances to disease such as Ascochyta blight and Fusarium wilt have been identified and molecular tools are being used to increase the efficiency of gene transfer from wild species into chickpea elite genotypes. Quantitative trait loci for resistance genes have been located on linkage maps and molecular markers associated with these loci can potentially be used for efficient pyramiding of the traits. Significant chickpea genomic resources have been developed in order to investigate resistance genes. Such resources include an integrated genetic map, expressed sequence tag libraries, bacterial artificial chromosome libraries, microarrays and draft genome sequences. Although these resources have yet to be used to improve chickpea cultivars in the field, this is likely to change in the near future. These genomic resources, as well as high-resolution phenotyping tools and cutting-edge technologies such as next-generation sequencing, promise to increase efficiency as work to identify valuable candidate genes continues.

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“…These responses were much faster on the less resistant and fastest on the susceptible check host, indicating that speed of recognition was correlated with resistance rating. This will inform fungicide application timing so that infected crops are Introduction Chickpea (Cicer arietinum L.) is an important staple pulse crop grown and consumed globally as a source of dietary protein, particularly in central Asia and Africa (Gan et al, 2006, Harveson et al, 2011, Kanouni et al, 2011. Australia is the second largest producer of chickpea (FAO 2018), however, yield and quality is significantly affected by Ascochyta Blight (AB) caused by the necrotrophic fugal pathogen, Ascochyta rabiei (Pass.)…”

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confidence: 99%

Evidence of recent increased pathogenicity within the AustralianAscochyta rabieipopulation

Sambasivam

Mehmood

Bar

et al. 2020

Preprint

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AbstractAscochyta Blight (AB), caused by Ascochyta rabiei (syn Phoma rabiei), is the major endemic foliar fungal disease affecting the Australian chickpea industry, resulting with potential crop loss and management costs. This study was conducted to better understand the risk posed by the Australian A. rabiei population to current resistance sources and to provide informed decision support for chemical control strategies. Recent changes in the pathogenicity of the population were proposed based on disease severity and histopathological observations on a host set. Controlled environment disease screening of 201 isolates on the host set revealed distinct pathogenicity groups, with 41% of all isolates assessed as highly aggressive and a significant increase in the proportion of isolates able to cause severe damage on resistant and moderately resistant cultivars since 2013. In particular, the frequency of highly aggressive isolates on the widely adopted PBA HatTrick cultivar rose from 18% in 2013 to 68% in 2017. In addition, isolates collected since 2016 caused severe disease on Genesis 090, another widely adopted moderately resistant cultivar and on ICC3996, a commonly used resistance source. Of immediate concern was the 10% of highly aggressive isolates able to severely damage the recently released resistant cultivar PBA Seamer (2016). Histopathology studies revealed that the most aggressive isolates were able to germinate, develop appressoria and invade directly through the epidermis faster than lower aggressive isolates on all hosts assessed, including ICC3996. The fungal invasion triggered a common reactive oxygen species (ROS) and hypersensitive response (HR) on all assessed resistant genotypes with initial biochemical and subsequent structural defence responses initiated within 24 hours of inoculation by the most highly aggressive isolates. These responses were much faster on the less resistant and fastest on the susceptible check host, indicating that speed of recognition was correlated with resistance rating. This will inform fungicide application timing so that infected crops are sprayed with prophylactic chemistries prior to invasion and with systemic chemistries after the pathogen has invaded.

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Ascochyta blight (Ascochyta rabiei (Pass.) Lab.) of Chickpea (Cicer arietinum L.): Breeding Strategies for Resistance

Cited by 32 publications

References 34 publications

Simple sequence repeat markers associated with agro-morphological traits in chickpea (Cicer arietinum L.)

Simple sequence repeat markers associated with agro-morphological traits in chickpea (Cicer arietinum L.)

Breeding for biotic stress resistance in chickpea: progress and prospects

Evidence of recent increased pathogenicity within the AustralianAscochyta rabieipopulation

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