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Randy G. Gardner and Dilip R. Panthee

for root knot nematode resistance and the I-3 gene for fusarium wilt race 3 resistance. Replicated plots of the F 3 generation were grown in two growers’ fields in coastal South Carolina in 2001 under conditions of heavy natural infection by TSWV to

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Ke Cao, Lirong Wang, Gengrui Zhu, Weichao Fang, Chenwen Chen, and Pei Zhao

against the Pp whole genome sequence (Version 1.0; Washington State University, 2010a ) was used to infer their location on specific chromosomes. The RGAs with same alignment results were thought as a “false” RGA. Results Root-knot nematode resistance

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Andrew P. Nyczepir, Janete A. Brito, Don W. Dickson, and Thomas G. Beckman

severe damage on root-knot nematode-resistant soybean ‘Forrest’ and sweetpotato ‘CDH’ cultivars ( Fargette, 1987 ; Fargette et al., 1996 ) and on tomato ‘Rossol’, which contains the Mi-1 nematode resistance gene ( Prot, 1984 ). Brito et al. (2004

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William B. Rutter, Chandrasekar S. Kousik, Judy A. Thies, Mark W. Farnham, and Richard L. Fery

Growers Company (Rocky Ford, CO) ( Fig. 1 ). PA-593 was derived from a single BC 3 F 4 plant grown in 2014, and is homozygous for the dominant N nematode resistance gene. The N gene conditions a high level of resistance against several RKNs, including

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Yiqun Weng

were unsuccessful ( Deakin et al., 1971 ; Fassuliotis, 1977 , 1979 ; Walters and Wehner, 2002 ). An alternative strategy may be through comparative genetic mapping of target genes such as nematode resistance in C. metuliferus using cross

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Mary Ann D. Maquilan, Dominick C. Padilla, Donald W. Dickson, and Bala Rathinasabapathi

host is directly related to the host’s resistance ( Taylor and Sasser, 1978 ), the egg mass index and RF were used as key parameters to assess the level of nematode resistance in ‘Datil’, ‘Round of Hungary’, ‘Jalapeño’, and ‘UFRJ107(6)A3’, along with

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Don R. La Bonte, Paul W. Wilson, Arthur Q. Villordon, and Christopher A. Clark

‘Evangeline’ sweetpotato [ Ipomoea batatas (L.) Lam.] was developed by the Louisiana Agricultural Experiment Station to provide a cultivar with characteristics similar to those of ‘Beauregard’ but with southern root-knot nematode resistance and

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Don R. La Bonte, Arthur Q. Villordon, Christopher A. Clark, Paul W. Wilson, and C. Scott Stoddard

-knot nematode resistance, is desirable, and color and root shape are favorable. Initially identified and evaluated as L01-29, the cultivar is named after the Japanese word for purple (murasaki). The dark purple skin is its most distinguishing characteristic

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Gayle M. Volk and Christopher M. Richards

collected wild carrot relatives ( Daucus sahariensis ) and garlic ( Allium sativum ) from Africa and Central Asia. The wild carrots have nematode resistance and nutritionally valuable carotenoids and anthocyanins. Some wild garlics can produce true seeds, a

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Andrés Cáceres, Gorka Perpiña, María Ferriol, Belén Picó, and Carmina Gisbert

increasing economic importance for melon cultivation are nematodes (mainly Meloidogyne ssp.) and the fungus Monosporascus cannonballus , responsible for the melon vine decline disease ( Pivonia et al., 2010 ). Nematode resistance has been described in some