Screening for resistance to black rot in a Spanish collection of <i>Brassica rapa</i>

Márquez, Margarita Lema; Cartea, María Elena; Francisco, Marta; Velasco, Pablo; Soengas, Pilar

doi:10.1111/pbr.12293

Cited by 11 publications

(10 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…They also noted that resistance is more common to Xcc race 3 and 5 whereas very rare to race 1 in B. oleracea. Moreover, Xcc race 6 was predominant in B. rapa (Lema et al 2015). But recently Cruz et al (2017) reported the existence of races 4, 6 and 7 (encompassing 21 out of 33 isolates) in Portugal.…”

Section: Discussionmentioning

confidence: 96%

Screening of Cabbage (Brassica oleracea L.) Germplasm for Resistance to Black Rot

Afrin¹,

Rahim²,

Park³

et al. 2018

Plant Breed. Biotech.

View full text Add to dashboard Cite

show abstract

Section: Discussionmentioning

confidence: 96%

Screening of Cabbage (Brassica oleracea L.) Germplasm for Resistance to Black Rot

Afrin¹,

Rahim²,

Park³

et al. 2018

Plant Breed. Biotech.

View full text Add to dashboard Cite

show abstract

“…Five traits were recorded in both inoculations as measures of resistance: initial index (INDEX0), final index (INDEXF), diseased leaf area (DISAREA), percentage of diseased leaf area (%DISAREA) with respect to total leaf area (TOTAREA), and percentage of points showing symptoms (%DISPOINTS). Subjective scores were assessed on a visual 1 to 9 rating scale based on the relative lesion size, 6 (INDEX0) and 14 (INDEXF) days after each inoculation, where 1 = no visible symptoms and 9 = severely diseased with typical V- shaped chlorotic leaf edge lesions presenting blackened veins areas 18 . One single measure was made for each leaf then McKinney index 19 was computed by repetition.…”

Section: Methodsmentioning

confidence: 99%

Dissecting quantitative resistance to Xanthomonas campestris pv. campestris in leaves of Brassica oleracea by QTL analysis

Iglesias-Bernabé

Madloo

Rodríguez

et al. 2019

Sci Rep

Self Cite

View full text Add to dashboard Cite

Black rot, caused by the bacterium Xanthomonas campestris pv. campestris (Xcc), produces important economic losses in crops of Brassica oleracea worldwide. Resistance to race 1, the most virulent and widespread in B. oleracea, is under quantitative control. Knowledge about the genetics of this resistance would help in designing strategies to control initial stages of invasion and development of the disease. QTL analysis of the resistance in the BolTBDH mapping population was performed. Resistance was measured with five traits related to initial stages of the invasion, success of infection and spread of the pathogen. Four single-trait QTLs of resistance were found, from which one represent novel variation. After performing multi-trait QTL, we concluded that spread of Xcc is related to the size of the leaf. Individuals from the mapping population follow two different strategies to cope with the spread of the disease: reducing lesion size or maintain more area of the leaf photosynthetically active, being more tolerant to Xcc invasion. Mechanisms underlying variation for resistance may be related to different aspects of plant immunity, including the synthesis of glucosinolates and phenolics.

show abstract

“…(Lema et al. ). The availability of validated diagrammatic scales would help to develop studies on disease epidemiology and breeding for resistance (Azevêdo et al.…”

Section: Introductionmentioning

confidence: 99%

Development and Validation of a Diagrammatic Scale to Assess the Severity of Black Rot of Crucifers in Kale

Núñez

Monteiro

Pacheco

et al. 2017

Journal of Phytopathology

View full text Add to dashboard Cite

The aim of this study was to develop a diagrammatic scale to evaluate black rot (Xanthomonas campestris pv. compestris) severity on kale (Brassica oleraceae var. acephala) leaves. The diagrammatic scale was developed and validated with eight levels of severity, ranging from 0.19 to 48.8%. More than 95% of the leaves collected from the field showed severity levels ranging from 0.1 to 21%, and 5% of the leaves showed severities higher than 22%. The validation of the scale was performed by 10 inexperienced evaluators, and the data were analysed with two methods: linear regression and Lin's statistics. Without the scale, most evaluators overestimated disease severity, whereas the use of the scale resulted in increased precision, accuracy, repeatability, and reproducibility of the estimates according to both validation methods. In conclusion, the proposed diagrammatic scale proved to be useful for assessments of black rot severity in kale leaves. The scale may be of interest to researches performing studies on epidemiology or breeding for resistance.

show abstract

Screening for resistance to black rot in a Spanish collection of Brassica rapa

Cited by 11 publications

References 27 publications

Screening of Cabbage (Brassica oleracea L.) Germplasm for Resistance to Black Rot

Screening of Cabbage (Brassica oleracea L.) Germplasm for Resistance to Black Rot

Dissecting quantitative resistance to Xanthomonas campestris pv. campestris in leaves of Brassica oleracea by QTL analysis

Development and Validation of a Diagrammatic Scale to Assess the Severity of Black Rot of Crucifers in Kale

Contact Info

Product

Resources

About