scholarly journals Cucumis metuliferus reduces Meloidogyne incognita virulence against the Mi1.2 resistance gene in a tomato–melon rotation sequence

2019 ◽  
Vol 75 (7) ◽  
pp. 1902-1910 ◽  
Author(s):  
Alejandro Expósito ◽  
Sergi García ◽  
Ariadna Giné ◽  
Nuria Escudero ◽  
Francisco Javier Sorribas
Keyword(s):  
Resistance Gene ◽  
Meloidogyne Incognita ◽  
Rotation Sequence

scholarly journals Inheritance and Identification of a Major Quantitative Trait Locus (QTL) that Confers Resistance to Meloidogyne incognita and a Novel QTL for Plant Height in Sweet Sorghum

2015 ◽  
Vol 105 (12) ◽  
pp. 1522-1528 ◽  
Author(s):  
Karen R. Harris-Shultz ◽  
Richard F. Davis ◽  
Joseph E. Knoll ◽  
William Anderson ◽  
Hongliang Wang
Keyword(s):  
Quantitative Trait Locus ◽  
Resistance Gene ◽  
Meloidogyne Incognita ◽  
Quantitative Trait ◽  
Sweet Sorghum ◽  
Major Quantitative Trait Locus ◽  
Interval Mapping ◽  
Chromosome 3 ◽  
Trait Locus ◽  
Stalk Weight

Southern root-knot nematodes (Meloidogyne incognita) are a pest on many economically important row crop and vegetable species and management relies on chemicals, plant resistance, and cultural practices such as crop rotation. Little is known about the inheritance of resistance to M. incognita or the genomic regions associated with resistance in sorghum (Sorghum bicolor). In this study, an F2 population (n = 130) was developed between the resistant sweet sorghum cultivar ‘Honey Drip’ and the susceptible sweet cultivar ‘Collier’. Each F2 plant was phenotyped for stalk weight, height, juice Brix, root weight, total eggs, and eggs per gram of root. Strong correlations were observed between eggs per gram of root and total eggs, height and stalk weight, and between two measurements of Brix. Genotyping-by-sequencing was used to generate single nucleotide polymorphism markers. The G-Model, single marker analysis, interval mapping, and composite interval mapping were used to identify a major quantitative trait locus (QTL) on chromosome 3 for total eggs and eggs per gram of root. Furthermore, a new QTL for plant height was also discovered on chromosome 3. Simple sequence repeat markers were developed in the total eggs and eggs per gram of root QTL region and the markers flanking the resistance gene are 4.7 and 2.4 cM away. These markers can be utilized to move the southern root-knot nematode resistance gene from Honey Drip to any sorghum line.

scholarly journals Commercial Formulates of Trichoderma Induce Systemic Plant Resistance to Meloidogyne incognita in Tomato and the Effect Is Additive to That of the Mi-1.2 Resistance Gene

2020 ◽  
Vol 10 ◽  
Author(s):  
Miriam Pocurull ◽  
Aïda M. Fullana ◽  
Miquel Ferro ◽  
Pau Valero ◽  
Nuria Escudero ◽  
...  
Keyword(s):  
Resistance Gene ◽  
Plant Resistance ◽  
Meloidogyne Incognita

Characterisation of virulence in populations of Meloidogyne chitwoodi and evidence for a resistance gene in pepper Capsicum annuum L. line PM 217

Nematology ◽  
2003 ◽  
Vol 5 (3) ◽  
pp. 383-390 ◽  
Author(s):  
François Berthou ◽  
Alain Palloix ◽  
Didier Mugniéry
Keyword(s):  
Resistance Gene ◽  
Doubled Haploid ◽  
Meloidogyne Incognita ◽  
Specific Resistance ◽  
Major Gene ◽  
European Population ◽  
Meloidogyne Chitwoodi ◽  
F1 Hybrid ◽  
Different Populations ◽  
European Populations

AbstractDoubled haploid lines of pepper from the F1 hybrid of PM 217 × Yolo Wonder were tested for their resistance to different populations of Meloidogyne chitwoodi. PM 217 has the Me1 gene for resistance to Meloidogyne incognita, M. arenaria, M. javanica and Me2 gene for resistance to M. hispanica. With two European populations a clear segregation was observed. The necrotic reactions and the resistant: susceptible segregation of 1 : 1 suggested the occurrence of a major gene, different from but close to Me1. With another European population of M. chitwoodi and with M. fallax, no resistance was observed. Two American and two southern European M. chitwoodi populations were totally avirulent to the two pepper parents. These results demonstrate the existence of great polymorphism in M. chitwoodi populations and of a major gene in pepper controlling a specific resistance against some populations.

GENETIC CONTROL OF RESISTANCE IN TOMATO (LYCOPERSICON ESCULENTUM). II. SEGREGATIONS FOR HIGH AND LOW LEVELS OF RESISTANCE TO MELOIDOGYNE INCOGNITA

1980 ◽  
Vol 22 (2) ◽  
pp. 223-226 ◽  
Author(s):  
Gurmel S. Sidhu ◽  
John M. Webster
Keyword(s):  
Lycopersicon Esculentum ◽  
Resistance Gene ◽  
Meloidogyne Incognita ◽  
Unit Length ◽  
Root Knot Nematode ◽  
Tomato Cultivars ◽  
Low Levels ◽  
High Level ◽  
Different Levels ◽  
Mode Of Inheritance

Tomato cultivars Nematex and Rutgers show different levels of resistance to root-knot nematode Meloidogyne incognita (Kofoid and White) infection. A method based on the number of galls per unit length of root is used to determine the low and high levels of resistance, and, based on this, the mode of inheritance of such resistance levels. High level of resistance of cv. Nematex is controlled by the resistance gene LMiR1 and the low level of resistance of cv. Rutgers by its allele [Formula: see text].

The Arabidopsis RPS4 bacterial-resistance gene is a member of the TIR-NBS-LRR family of disease-resistance genes

1999 ◽  
Vol 20 (3) ◽  
pp. 265-277 ◽  
Author(s):  
Walter Gassmann ◽  
Matthew E. Hinsch ◽  
Brian J. Staskawicz
Keyword(s):  
Disease Resistance ◽  
Resistance Gene ◽  
Resistance Genes ◽  
Bacterial Resistance ◽  
Disease Resistance Genes

Resistance gene identified in malaria parasite

Nature ◽  
2013 ◽  
Author(s):  
Ewen Callaway
Keyword(s):  
Resistance Gene ◽  
Malaria Parasite

Resistance mechanisms ofPrunusrootstocks to root-knot nematode,Meloidogyne incognita

Fruits ◽  
2009 ◽  
Vol 64 (5) ◽  
pp. 295-303 ◽  
Author(s):  
Hang Ye ◽  
Wen-jun Wang ◽  
Guo-jie Liu ◽  
Li-xin Zhu ◽  
Ke-gong Jia
Keyword(s):  
Meloidogyne Incognita ◽  
Resistance Mechanisms ◽  
Root Knot Nematode

Construction of expression vectors of the melon resistance gene Fom-2 and genetic transformation

2018 ◽  
Vol 51 (1) ◽  
Author(s):  
Xiaomei Li ◽  
Liu Liu ◽  
Xiangyu Liu ◽  
Yan Hou ◽  
Bingyin Xu ◽  
...  
Keyword(s):  
Genetic Transformation ◽  
Resistance Gene ◽  
Expression Vectors
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