Field resistance of annual pasture legumes to the root lesion nematode,Pratylenchus neglectus

2006 ◽  
Vol 35 (3) ◽  
pp. 303 ◽  
Author(s):  
R. A. Ballard ◽  
R. E. Hutton ◽  
S. P. Taylor ◽  
A. C. McKay ◽  
J. H. Howie
Keyword(s):  
Field Resistance ◽  
Root Lesion Nematode ◽  
Pratylenchus Neglectus ◽  
Pasture Legumes ◽  
Lesion Nematode

scholarly journals Pathotypes Detected Among Populations of Pratylenchus neglectus Collected From Montana

Plant Disease ◽  
2019 ◽  
Vol 103 (12) ◽  
pp. 3259-3264
Author(s):  
Riyadh T. Al-Khafaji ◽  
Erin E. Gunnink Troth ◽  
Kris N. Lambert ◽  
Jeffrey A. Johnston ◽  
Alan T. Dyer
Keyword(s):  
Population Analysis ◽  
The State ◽  
Crop Rotations ◽  
Root Lesion Nematode ◽  
Pratylenchus Neglectus ◽  
Changing Trends ◽  
Lesion Nematode ◽  
Initial Survey ◽  
Moderately Resistant ◽  
The Impact

The root lesion nematode, Pratylenchus neglectus, is one of the most damaging nematodes to affect wheat worldwide. The nematode is widely distributed in Montana, primarily affecting winter wheat within the state. Managing the nematode primarily involves rotation to resistant and moderately resistant crops (peas, lentils, and barley). A nematode survey was conducted across the state nearly 10 years after an initial survey, to reassess the nematode threat and assess the impact of changing trends in crop rotations. To assess the broad applicability of rotation crops to control P. neglectus across Montana, greenhouse trials were conducted to challenge rotational crops using eight populations of P. neglectus collected from geographically diverse locations across the state. In the trials, conducted with four Montana crops, a significant interaction was detected between crop and nematode population (analysis of variance P < 0.001). Populations from Hill, Dawson, and Chouteau counties were found to be pathogenic on barley. Male nematodes were detected in seven of the eight pot culture populations, and these were confirmed to be P. neglectus by morphological and molecular methods. These results suggest a re-evaluation of barley and lentils as a management option for P. neglectus in Montana, as pathotypes for each exist within the state.

scholarly journals First Report of the Root-lesion Nematode Pratylenchus neglectus on Wheat (Triticum aestivum) in North Dakota

Plant Disease ◽  
2016 ◽  
Vol 100 (8) ◽  
pp. 1794 ◽  
Author(s):  
G. P. Yan ◽  
A. Plaisance ◽  
D. Huang ◽  
Z. Liu ◽  
V. Chapara ◽  
...  
Keyword(s):  
Triticum Aestivum ◽  
North Dakota ◽  
Root Lesion Nematode ◽  
Pratylenchus Neglectus ◽  
First Report ◽  
Lesion Nematode

scholarly journals Genetic analysis of tolerance to the root lesion nematode Pratylenchus neglectus in the legume Medicago littoralis

2014 ◽  
Vol 14 (1) ◽  
pp. 100 ◽  
Author(s):  
Klaus H Oldach ◽  
David M Peck ◽  
Ramakrishnan M Nair ◽  
Maria Sokolova ◽  
John Harris ◽  
...  
Keyword(s):  
Genetic Analysis ◽  
Root Lesion Nematode ◽  
Pratylenchus Neglectus ◽  
Medicago Littoralis ◽  
Lesion Nematode

Genetic variation in resistance to Pratylenchus neglectus in wheat and triticales

1995 ◽  
Vol 35 (5) ◽  
pp. 597 ◽  
Author(s):  
M Farsi ◽  
VA Vanstone ◽  
JM Fisher ◽  
AJ Rathjen
Keyword(s):  
Yield Loss ◽  
Genetic Material ◽  
Whole Genome ◽  
Root Lesion Nematode ◽  
Substitution Lines ◽  
Wheat Varieties ◽  
Pratylenchus Neglectus ◽  
Significant Difference ◽  
Genetic Mechanisms ◽  
Lesion Nematode

The root lesion nematode Pratylenchus neglectus occurs throughout the South Australian cereal belt, where it potentially contributes to yield loss. Genetic material was examined for resistance to P. neglectus, and included 2 susceptible local commercial wheat varieties (Spear, Molineux), 2 derivatives from Spear (RAC 613-27, RAC 613-47), wheat varieties varying in reaction to I? thornei, rye and rye derivatives, triticales, and 1R substitution lines in Chinese Spring. Seeds were surface-sterilised and germinated, and 3-day-old seedlings were inoculated with about 250 larvae and 150 eggs. Plants were grown in pots containing pasteurised soil and transferred to a controlled temperature waterbath at 22 � 1�C. After 7 weeks, nematodes were extracted and counted. A significant difference for the number of nematodes per plant and per gram dry root was found between the 3 main groups of genetic material: the wheat varieties, the substitution lines, and lines with the whole genome of rye (including triticales). The triticales Abacus and Muir showed the lowest number of nematodes (per gram root and per plant). None of the wheat varieties was resistant, so genetic mechanisms conferring resistance or tolerance to P. thornei are not effective against P. neglectus.

scholarly journals Genetic mapping and marker development for resistance of wheat against the root lesion nematode Pratylenchus neglectus

2013 ◽  
Vol 13 (1) ◽  
pp. 230 ◽  
Author(s):  
Dimanthi V Jayatilake ◽  
Elise J Tucker ◽  
Harbans Bariana ◽  
Haydn Kuchel ◽  
James Edwards ◽  
...  
Keyword(s):  
Genetic Mapping ◽  
Marker Development ◽  
Root Lesion Nematode ◽  
Pratylenchus Neglectus ◽  
Lesion Nematode

Mapping of the root lesion nematode (Pratylenchus neglectus) resistance gene Rlnn1 in wheat

2002 ◽  
Vol 104 (5) ◽  
pp. 874-879 ◽  
Author(s):  
K. Williams ◽  
S. Taylor ◽  
P. Bogacki ◽  
M. Pallotta ◽  
H. Bariana ◽  
...  
Keyword(s):  
Resistance Gene ◽  
Root Lesion Nematode ◽  
Pratylenchus Neglectus ◽  
Lesion Nematode

Molecular and morphological variation of the root-lesion nematode Pratylenchus neglectus

Biologia ◽  
2018 ◽  
Vol 74 (3) ◽  
pp. 257-267 ◽  
Author(s):  
Nafiseh Divsalar ◽  
Ebrahim Shokoohi ◽  
Akbar Hoseinipour ◽  
Phatu Mashela
Keyword(s):  
Morphological Variation ◽  
Root Lesion Nematode ◽  
Pratylenchus Neglectus ◽  
Lesion Nematode

QTL analysis of root-lesion nematode resistance in barley: 1. Pratylenchus neglectus

2011 ◽  
Vol 122 (7) ◽  
pp. 1321-1330 ◽  
Author(s):  
Shiveta Sharma ◽  
Shailendra Sharma ◽  
Friedrich J. Kopisch-Obuch ◽  
Tobias Keil ◽  
Eberhard Laubach ◽  
...  
Keyword(s):  
Qtl Analysis ◽  
Nematode Resistance ◽  
Root Lesion Nematode ◽  
Pratylenchus Neglectus ◽  
Lesion Nematode
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