Disease Phenomics

Giglioti, Éder Antônio; Sumida, Ciro Hideki; Canteri, Marcelo Giovanetti

doi:10.1007/978-3-319-13677-6_7

Cited by 5 publications

(6 citation statements)

References 23 publications

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“…This responsibility will fall to research teams, where a large cohort of deep knowledge needs to be shared in order to deploy phenomics tools into breeding programs. Particularly, plant breeders will need to be open and proactive at realizing the potential that phenomics tools could have to advance their breeding programs ( Giglioti et al, 2015 ; Cobb et al, 2019 ). However, it is important to remember that phenomics will not always shorten the timeline for cultivar development; rather, it will facilitate an upscale and increase in accuracy of phenotyping capability.…”

Section: Future Directionsmentioning

confidence: 99%

The Past, Present, and Future of Host Plant Resistance in Cotton: An Australian Perspective

Egan

Stiller

2022

Front. Plant Sci.

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Cotton is a key global fiber crop. However, yield potential is limited by the presence of endemic and introduced pests and diseases. The introduction of host plant resistance (HPR), defined as the purposeful use of resistant crop cultivars to reduce the impact of pests and diseases, has been a key breeding target for the Commonwealth Scientific and Industrial Research Organisation (CSIRO) cotton breeding program. The program has seen success in releasing cultivars resistant to Bacterial blight, Verticillium wilt, Fusarium wilt, and Cotton bunchy top. However, emerging biotic threats such as Black root rot and secondary pests, are becoming more frequent in Australian cotton production systems. The uptake of tools and breeding methods, such as genomic selection, high throughput phenomics, gene editing, and landscape genomics, paired with the continued utilization of sources of resistance from Gossypium germplasm, will be critical for the future of cotton breeding. This review celebrates the success of HPR breeding activities in the CSIRO cotton breeding program and maps a pathway for the future in developing resistant cultivars.

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Section: Future Directionsmentioning

confidence: 99%

The Past, Present, and Future of Host Plant Resistance in Cotton: An Australian Perspective

Egan

Stiller

2022

Front. Plant Sci.

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“…For the quantification of diseases, images-based methods that rely on the reflectance of waves have been developed, such as analyzing the images in the visible spectrum, hyperspectral images, thermographic images, and chlorophyll fluorescence images [84]. Likewise, several automated and versatile disease phenomics platforms based on imaging techniques have been developed.…”

Section: Phenomics-assisted Breedingmentioning

confidence: 99%

“…For instance, the multi-sensor platforms Scanalyser 3DHT and Scanalyser FIELD are developed by the company LemnaTec (http://www.lemnatec.com) for the high-throughput phenotyping in the greenhouse and field, respectively. The American company Qubit Systems (http://qubitsystems.com/portal/) developed PlantScreen™ Conveyor Systems and PlantScreen™ Field Systems for greenhouse and field studies, respectively [84]. The image-based methods have been implemented to examine the diseases caused by the genus Xanthomonas in citrus [85] and bean [86].…”

Section: Phenomics-assisted Breedingmentioning

confidence: 99%

Advances and Challenges in Bacterial Spot Resistance Breeding in Tomato (Solanum lycopersicum L.)

Adhikari

Louws

et al. 2020

IJMS

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Bacterial spot is a serious disease of tomato caused by at least four species of Xanthomonas. These include X. euvesicatoria (race T1), X. vesicatoria (race T2), X. perforans (races T3 and T4), and X. gardneri, with the distinct geographical distribution of each group. Currently, X. gardneri and X. perforans are two major bacterial pathogens of tomato in North America, with X. perforans (race T4) dominating in east-coast while X. gardneri dominating in the Midwest. The disease causes up to 66% yield loss. Management of this disease is challenging due to the lack of useful chemical control measures and commercial resistant cultivars. Although major genes for resistance (R) and quantitative resistance have been identified, breeding tomato for resistance to bacterial spot has been impeded by multiple factors including the emergence of new races of the pathogen that overcome the resistance, multigenic control of the resistance, linkage drag, non-additive components of the resistance and a low correlation between seedling assays and field resistance. Transgenic tomato with Bs2 and EFR genes was effective against multiple races of Xanthomonas. However, it has not been commercialized because of public concerns and complex regulatory processes. The genomics-assisted breeding, effectors-based genomics breeding, and genome editing technology could be novel approaches to achieve durable resistance to bacterial spot in tomato. The main goal of this paper is to understand the current status of bacterial spot of tomato including its distribution and pathogen diversity, challenges in disease management, disease resistance sources, resistance genetics and breeding, and future prospectives with novel breeding approaches.

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“…(Würschum, 2012). The individuals in the segregating population are genotyped and phenotyped in order to screen for the trait(s) of interest accurately and rapidly, enabling the discovery of links and the association between plant genes and their expression in the form of traits (Giglioti et al, 2015). However, the small size of early generations in segregating populations usually hinders the power of QTL detection and heritability is low in these populations.…”

Section: Molecular Toolsmentioning

confidence: 99%

“…However, in recent years great advances in technology have started to pave the way for high throughput field screening platforms. The development of such platforms coincided with an increasing interest in its use by plant phenomic centres, universities and multinational breeding and seed companies around the world(Giglioti et al, 2015). High throughput phenotyping platforms have greatly assisted in the development of field screening of complex traits such as yield, drought adaptation, pathogen virulence or aggressiveness and plant resistance traits, rendering data collection more efficient and consistent across the field.Some of the important traits that have been correlated with high yield potential and adaptation to heat and drought stress include staygreen (or rate of senescence) and canopy temperature.…”

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confidence: 99%

Accelerating the development of durum wheat adapted to drought and crown rot conditions

Alahmad¹

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Global demand for durum wheat (Triticum turgidum L. ssp. durum) will increase with our dramatic continuous growing population. However, production is facing climatic fluctuations and evolving pests and diseases. In Australia, the industry has encountered many challenges surrounding stable and profitable production. These include the lack of reliable rainfall throughout the production regions resulting in severe droughts, and the susceptibility of durum wheat to crown rot (CR; caused predominantly by Fusarium pseudograminearum). Damage to durum wheat crops caused by CR is exacerbated by water stress. Thus far, due to the limited protection attainable by fungicide application and lack of genetic resistance in elite durum breeding germplasm, it has been recognised that breeding varieties incorporating reduced susceptibility to CR would be the most effective control measure when effectively combined with other management practices. For example, improved root system architecture holds some promise for enhancing access to water in arid and semi-arid production areas, particularly in deep soils with high water-holding capacity. This may be advantageous in CR-affected environments if it enables improved access to water that could simultaneously help to avoid drought and so reduce the impact of CR on yield. Hence, this research aimed to identify and combine multiple desirable physiological traits, or adaptive features, to provide some tolerance to CR. Firstly, to identify genetic regions influencing root growth angle (RGA) and CR tolerance, an integrated screening method was developed for phenotyping root variation and CR tolerance, along with other important traits such as leaf rust and plant height in durum wheat. The method was adapted to speed breeding and provided plant breeders with protocols and tools to apply selection in early generations of population development. Therefore, the selection will result in enriching recombinant inbred lines (RILs) with desirable alleles and reduce the number of years required to combine these traits in elite breeding populations. Secondly, a nested association mapping (NAM) population was developed within 18 months using speed breeding technology, including an F4 generation in the field. NAM population were developed by crossing eight elite lines imported from the International Centre for Agricultural Research in the Dry Areas (ICARDA) with two Australian cultivars. This population generated a significant variation for above-and below-ground traits that could be harnessed and explored using genetic mapping and breeding approaches. To identify key genomic regions associated with RGA, a subset of 393 NAM lines were phenotyped using the 'clear pot' method. Combining RGA data with 2,541 polymorphic DArTseq markers information, a major iii independent QTL (qSRA-6A) on 6A chromosome was identified. Furthermore, haplotype analysis for this QTL identified two major haplotype groups in the population, highlighting the opportunity for combining root traits with above-ground traits to better ...

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Disease Phenomics

Cited by 5 publications

References 23 publications

The Past, Present, and Future of Host Plant Resistance in Cotton: An Australian Perspective

The Past, Present, and Future of Host Plant Resistance in Cotton: An Australian Perspective

Advances and Challenges in Bacterial Spot Resistance Breeding in Tomato (Solanum lycopersicum L.)

Accelerating the development of durum wheat adapted to drought and crown rot conditions

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