Single plant selection for improving root rot disease (Phytophthora medicaginis) resistance in Chickpeas (Cicer arietinum L.)

Miranda, John H.

doi:10.1007/s10681-019-2389-2

Cited by 8 publications

(5 citation statements)

References 37 publications

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“…Yorker were observed between the parameters normalised height reduction, area of early senescence, and in-crop inoculum production. The non-linear normalised yield to disease incidence relationship may be linked to increased seed production from surviving plants in plots due to higher levels of pathogen resistance, reduced interplant completion, or a combination of these factors as reported for P. medicaginis - and Phytophthora sojae -inoculated chickpea and soybeans plants, respectively, in field experiments ( Wilcox and St Martin, 1998 ; Miranda, 2019 ).…”

Section: Discussionmentioning

confidence: 95%

Inoculum production of Phytophthora medicaginis can be used to screen for partial resistance in chickpea genotypes

Bithell

Drenth²,

Backhouse³

et al. 2023

Front. Plant Sci.

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Phytophthora root rot caused by Phytophthora medicaginis is an important disease of chickpeas (Cicer arietinum) in Australia with limited management options, increasing reliance on breeding for improved levels of genetic resistance. Resistance based on chickpea–Cicer echinospermum crosses is partial with a quantitative genetic basis provided by C. echinospermum and some disease tolerance traits originating from C. arietinum germplasm. Partial resistance is hypothesised to reduce pathogen proliferation, while tolerant germplasm may contribute some fitness traits, such as an ability to maintain yield despite pathogen proliferation. To test these hypotheses, we used P. medicaginis DNA concentrations in the soil as a parameter for pathogen proliferation and disease assessments on lines of two recombinant inbred populations of chickpea–C. echinospermum crosses to compare the reactions of selected recombinant inbred lines and parents. Our results showed reduced inoculum production in a C. echinospermum backcross parent relative to the C. arietinum variety Yorker. Recombinant inbred lines with consistently low levels of foliage symptoms had significantly lower levels of soil inoculum compared to lines with high levels of visible foliage symptoms. In a separate experiment, a set of superior recombinant inbred lines with consistently low levels of foliage symptoms was tested for soil inoculum reactions relative to control normalised yield loss. The in-crop P. medicaginis soil inoculum concentrations across genotypes were significantly and positively related to yield loss, indicating a partial resistance-tolerance spectrum. Disease incidence and the rankings for in-crop soil inoculum were correlated strongly to yield loss. These results indicate that soil inoculum reactions may be useful to identify genotypes with high levels of partial resistance.

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Section: Discussionmentioning

confidence: 95%

Inoculum production of Phytophthora medicaginis can be used to screen for partial resistance in chickpea genotypes

Bithell

Drenth²,

Backhouse³

et al. 2023

Front. Plant Sci.

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“…Yorker were observed between the parameters normalised height reduction, area of early senescence, and in-crop inoculum production. The non-linear normalised yield to disease incidence relationship may be linked to increased seed production from surviving plants in plots due to higher levels of pathogen resistance, reduced interplant completion, or a combination of these factors as reported for P. medicaginisand Phytophthora sojaeinoculated chickpea and soybeans plants, respectively, in field experiments (Wilcox and St Martin, 1998;Miranda, 2019).…”

Section: Discussionmentioning

confidence: 96%

Legume root diseases

2024

Frontiers Research Topics

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Frontiers is more than just an open access publisher of scholarly articles: it is a pioneering approach to the world of academia, radically improving the way scholarly research is managed. The grand vision of Frontiers is a world where all people have an equal opportunity to seek, share and generate knowledge. Frontiers provides immediate and permanent online open access to all its publications, but this alone is not enough to realize our grand goals. Frontiers journal seriesThe Frontiers journal series is a multi-tier and interdisciplinary set of openaccess, online journals, promising a paradigm shift from the current review, selection and dissemination processes in academic publishing. All Frontiers journals are driven by researchers for researchers; therefore, they constitute a service to the scholarly community. At the same time, the Frontiers journal series operates on a revolutionary invention, the tiered publishing system, initially addressing specific communities of scholars, and gradually climbing up to broader public understanding, thus serving the interests of the lay society, too. Dedication to qualityEach Frontiers article is a landmark of the highest quality, thanks to genuinely collaborative interactions between authors and review editors, who include some of the world's best academicians. Research must be certified by peers before entering a stream of knowledge that may eventually reach the public -and shape society; therefore, Frontiers only applies the most rigorous and unbiased reviews. Frontiers revolutionizes research publishing by freely delivering the most outstanding research, evaluated with no bias from both the academic and social point of view. By applying the most advanced information technologies, Frontiers is catapulting scholarly publishing into a new generation. What are Frontiers Research Topics?Frontiers Research Topics are very popular trademarks of the Frontiers journals series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area.

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“…PRR disease severity is often visually scored by an ordinal (1-9) rating scale in chickpea [3,4,6,18,26]. In field phenotyping, the disease incidence is usually based on the number of diseased to total plants per plot [4,5,18]. The assessment of single plants in pots and/or hydroponics experiments requires different methods.…”

Section: Discussionmentioning

confidence: 99%

“…Previous selection methods for identifying PRR resistance in chickpea relied primarily on field evaluations or on glasshouse seedling-based tests [4,5,17,18]. Although field screening is conducted under natural conditions, the process is labour intensive, time consuming, and heavily affected by seasonal conditions.…”

Section: Introductionmentioning

confidence: 99%

Rapid and High Throughput Hydroponics Phenotyping Method for Evaluating Chickpea Resistance to Phytophthora Root Rot

Asif,

Bithell,

Pirathiban

et al. 2023

Plants

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Phytophthora root rot (PRR) is a major constraint to chickpea production in Australia. Management options for controlling the disease are limited to crop rotation and avoiding high risk paddocks for planting. Current Australian cultivars have partial PRR resistance, and new sources of resistance are needed to breed cultivars with improved resistance. Field- and glasshouse-based PRR resistance phenotyping methods are labour intensive, time consuming, and provide seasonally variable results; hence, these methods limit breeding programs’ abilities to screen large numbers of genotypes. In this study, we developed a new space saving (400 plants/m2), rapid (<12 days), and simplified hydroponics-based PRR phenotyping method, which eliminated seedling transplant requirements following germination and preparation of zoospore inoculum. The method also provided post-phenotyping propagation all the way through to seed production for selected high-resistance lines. A test of 11 diverse chickpea genotypes provided both qualitative (PRR symptoms) and quantitative (amount of pathogen DNA in roots) results demonstrating that the method successfully differentiated between genotypes with differing PRR resistance. Furthermore, PRR resistance hydroponic assessment results for 180 recombinant inbred lines (RILs) were correlated strongly with the field-based phenotyping, indicating the field phenotype relevance of this method. Finally, post-phenotyping high-resistance genotypes were selected. These were successfully transplanted and propagated all the way through to seed production; this demonstrated the utility of the rapid hydroponics method (RHM) for selection of individuals from segregating populations. The RHM will facilitate the rapid identification and propagation of new PRR resistance sources, especially in large breeding populations at early evaluation stages.

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Single plant selection for improving root rot disease (Phytophthora medicaginis) resistance in Chickpeas (Cicer arietinum L.)

Cited by 8 publications

References 37 publications

Inoculum production of Phytophthora medicaginis can be used to screen for partial resistance in chickpea genotypes

Inoculum production of Phytophthora medicaginis can be used to screen for partial resistance in chickpea genotypes

Legume root diseases

Rapid and High Throughput Hydroponics Phenotyping Method for Evaluating Chickpea Resistance to Phytophthora Root Rot

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