First Report of the Occurrence of Bacterial Leaf Streak of Corn Caused by <i>Xanthomonas vasicola</i> pv. <i>vasculorum</i> in Brazil

Leite, Rui Pereira; Custódio, Adriano Augusto de Paiva; Madalosso, T.; Robaina, Renata Rodrigues; Duin, Izabela Moura; Sugahara, Vanessa Hitomi

doi:10.1094/pdis-06-18-1100-pdn

Cited by 26 publications

(8 citation statements)

References 5 publications

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“…Bacterial leaf streak, caused by Xanthomonas vasicola pv. vasculorum ( Xvv ), is an emerging disease in the Americas ( Damicone et al 2018 ; Jamann et al 2019 ; Korus et al 2017 ; Leite et al 2019 ). The bacteria enter and exit through wounds and stomata to colonize intercellular spaces, but do not enter the vasculature ( Ortiz-Castro et al 2018 ).…”

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confidence: 99%

Identification of Loci That Confer Resistance to Bacterial and Fungal Diseases of Maize

Qiu

Cooper

Kaiser

et al. 2020

G3 Genes|Genomes|Genetics

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Crops are hosts to numerous plant pathogenic microorganisms. Maize has several major disease issues; thus, breeding multiple disease resistant (MDR) varieties is critical. While the genetic basis of resistance to multiple fungal pathogens has been studied in maize, less is known about the relationship between fungal and bacterial resistance. In this study, we evaluated a disease resistance introgression line (DRIL) population for the foliar disease Goss's bacterial wilt and blight (GW) and conducted quantitative trait locus (QTL) mapping. We identified a total of ten QTL across multiple environments. We then combined our GW data with data on four additional foliar diseases (northern corn leaf blight, southern corn leaf blight, gray leaf spot, and bacterial leaf streak) and conducted multivariate analysis to identify regions conferring resistance to multiple diseases. We identified 20 chromosomal bins with putative multiple disease effects. We examined the five chromosomal regions (bin 1.05, 3.04, 4.06, 8.03, and 9.02) with the strongest statistical support. By examining how each haplotype effected each disease, we identified several regions associated with increased resistance to multiple diseases and three regions associated with opposite effects for bacterial and fungal diseases. In summary, we identified several promising candidate regions for multiple disease resistance in maize and specific DRILs to expedite interrogation.

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confidence: 99%

Identification of Loci That Confer Resistance to Bacterial and Fungal Diseases of Maize

Qiu

Cooper

Kaiser

et al. 2020

G3 Genes|Genomes|Genetics

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“…symptoms in northern Argentina, and since that time, the disease has expanded from Córdoba Province to other provinces in Argentina . It was suspected that BLS was present in Brazil for some time, and the disease was recently positively confirmed (Leite et al, 2019). In the United States, BLS was first reported in Nebraska in 2014 and subsequently was confirmed in Colorado and Kansas (Korus et al, 2017).…”

Section: Crop Sciencementioning

confidence: 99%

“…], it is likely that host resistance will play a major role in controlling the disease. Bacterial leaf streak infects a wide variety of cultivars (Lang et al., 2017; Leite et al., 2019). Symptom type and severity vary among hybrids (Leite et al., 2019; Munkvold & White, 2016), indicating there may be genetic control of the plant response to the disease.…”

Section: Introductionmentioning

confidence: 99%

“…Bacterial leaf streak infects a wide variety of cultivars (Lang et al., 2017; Leite et al., 2019). Symptom type and severity vary among hybrids (Leite et al., 2019; Munkvold & White, 2016), indicating there may be genetic control of the plant response to the disease. To date, no studies have been published on the genetic architecture of resistance to BLS, which would facilitate the development of resistant varieties.…”

Section: Introductionmentioning

confidence: 99%

“…vasculorum (Cobb) comb. nov. ( Xvv ), recently emerged in the Americas, and little is known about host resistance to the disease (Damicone, Cevallos, & Olson, 2018; Jamann, Plewa, Mideros, & Bissonnette, 2019; Korus et al., 2017; Leite et al., 2019; Plazas et al., 2018). Bacterial leaf streak was first reported in South Africa in 1949 (Dyer, 1949) and was limited to the African continent until recently.…”

Section: Introductionmentioning

confidence: 99%

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Identification of quantitative trait loci associated with maize resistance to bacterial leaf streak

et al. 2020

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Bacterial leaf streak (BLS), a foliar disease of maize (Zea mays L.) caused by Xanthomonas vasicola pv. vasculorum, recently emerged in the Americas as a disease of major importance. Little is known about the disease cycle, and consequently, management is difficult. No chemical control is available. Host resistance will likely play a major role in controlling the disease, but to date, no data regarding the resistance of maize germplasm to X. vasicola pv. vasculorum have been published. The objective of this study was to examine the genetic architecture of resistance to BLS. We conducted quantitative trait locus (QTL) mapping for BLS resistance in three maize populations: the Z022 (B73 × Oh43 recombinant inbred line) nested association mapping (NAM) population, the Z023 (B73 × Oh7B recombinant inbred line) NAM population, and the DRIL78 (NC344 × Oh7B chromosome segment substitution line) population. A total of five QTL were detected across two of the mapping populations. Of the QTL detected, one conferred a moderate effect, whereas the others conferred small effects. We also examined the relationship between resistance to BLS and resistance to three foliar diseases of maize, which had been mapped previously. The only significant correlation we found for BLS was with northern corn leaf blight [caused by Exserohilum turcicum (Pass.) K. J. Leonard & Suggs] in one of the populations, although two of the five BLS regions were involved in resistance to other diseases. These data will be useful for developing maize varieties resistant to BLS to mitigate the impact of bacterial leaf streak on maize production.

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Development and validation of a diagrammatic scale for the assessment of the severity of bacterial leaf streak of corn

et al. 2020

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First Report of the Occurrence of Bacterial Leaf Streak of Corn Caused by Xanthomonas vasicola pv. vasculorum in Brazil

Cited by 26 publications

References 5 publications

Identification of Loci That Confer Resistance to Bacterial and Fungal Diseases of Maize

Identification of Loci That Confer Resistance to Bacterial and Fungal Diseases of Maize

Identification of quantitative trait loci associated with maize resistance to bacterial leaf streak

Development and validation of a diagrammatic scale for the assessment of the severity of bacterial leaf streak of corn

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