Screening of common bean (<i>Phaseolus vulgaris</i>) for resistance against temperate root‐knot nematodes (<i>Meloidogyne</i> spp.)

Wesemael, Wim; Moens, Maurice

doi:10.1002/ps.2316

Cited by 17 publications

(10 citation statements)

References 13 publications

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“…naasi (Cook et al, 1999) was reported in common bean and ryegrasses, respectively. Wesemael and Moens (2009) reported resistance for M. chitwoodi and M. fallax in bean cultivars. Promising results have been obtained from several wild tuber-bearing Solanum species for resistance against M. chitwoodi, M. hapla and M. fallax (Janssen et al, 1996;Brown et al, 2006).…”

Section: Resistancementioning

confidence: 99%

Root-knot nematodes (Meloidogyne spp.) in Europe

Wesemael¹,

Viaene²,

Moens

2011

Nematol

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In Europe, root-knot nematodes are increasingly important. Out of more than 90 Meloidogyne species currently described, 23 have been found on the continent. In the cooler climates, Meloidogyne hapla, M. naasi, M. chitwoodi and M. fallax are prevalent. Meloidogyne arenaria, M. javanica and M. incognita are the most common species in warmer conditions of southern Europe, but also in glasshouses in northern Europe. Morphological identification of root-knot nematodes is difficult and time consuming; therefore, many research groups have been developing molecular techniques for identification of Meloidogyne species. Meloidogyne chitwoodi and M. fallax are quarantine organisms and subject to regulations, and the highly aggressive M. enterolobii has been added to the EPPO alert list. Differences between temperate and tropical Meloidogyne species and their prevalence in Europe imply the need for different management strategies in south and north Europe. Possible crop rotations for the control of root-knot nematodes are limited due to the wide host range of several important species. The banning of methyl bromide and restrictions on other fumigant pesticides in the EU have increased the application of biofumigation significantly in south Europe. The egg-parasitising fungus Paecilomyces lilacinus is commercialised in Germany and applied as dispersible granules for application in water. Intensive research is conducted on the eggparasitising fungus Pochonia chlamydosporia, and the obligate parasitic bacterium Pasteuria penetrans. European research has paid much attention to resistance breeding and selection. The Mi gene of tomato is widely used but resistance-breaking populations of M. incognita and M. javanica have been reported in different countries.

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Section: Resistancementioning

confidence: 99%

Root-knot nematodes (Meloidogyne spp.) in Europe

Wesemael¹,

Viaene²,

Moens

2011

Nematol

Self Cite

235

145

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“…Currently, screening for resistance towards Meloidogyne is mainly done by rating gall formation and/or count ing and comparing egg masses (McSorley & Frederick, 1995;van der Beek & Mugniery, 2008;Wesemael & Moens, 2012). This method presents no quantitative in formation on the final population density (Pf) as the num ber of developed infective juveniles is still unknown.…”

mentioning

confidence: 98%

Relative susceptibilities of five fodder radish varieties (Raphanus sativus var. Oleiformis) to Meloidogyne chitwoodi

Teklu

Schomaker

Been

2014

Nematol

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The fodder radish varieties Anaconda, Contra, Defender, Doublet and Terranova, known to have some partial resistance, were compared to the standard variety, Radical, to estimate their relative susceptibility (RS) for both population dynamic parameters of Meloidogyne chitwoodi and to evaluate P\ dependency. This approach must eventually lead to new screening methods for partial resistance tests. Plants were grown under controlled glasshouse conditions. Twelve densities of nematodes in five replications were used. Five plants per 7 1 pot were allowed to grow for a period of 11 weeks until their early flowering stage. Few seedlings of all the varieties at P\ = 32 and 64 J2 (g dry soil)-1 , and all seedlings exposed to the highest density, P\ = 128 J2 (g dry soil)-1 , died within a week after germination. Replanted seedlings developed into normal plants. Total yield, expressed as total fresh weight, was not affected by M. chitwoodi. A lower percentage of plants with galls was observed on partially resistant varieties as compared with Radical. For Radical, a maximum multiplication rate (a) of 0.38 and a maximum population density (M ) of 6.43 J2 (g dry soil)-1 were estimated. Radical proved to be a bad host for M. chitwoodi with all final populations lower than the P\. The parameter estimates of (M) for Anaconda, Contra, Defender, Doublet and Terranova were 0.011, 0.006, 0.027, 0.020 and 0.009 J2 (g dry soil)-1 , respectively. With Radical taken to he 100% susceptible, this resulted in RSm values of 0.17, 0.10, 0.42, 0.32 and 0.14% of these varieties, respectively, reducing high population levels of M. chitwoodi by more than 98%. There was no correlation between the rMgans and the RSm values, indicating that scoring the number of galled plants will not provide a suitable measure for partial resistance.

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“…Most likely, the history of backcrossing influenced the expression of the resistance gene. The standard breeder's resistance tests (counting root-knots on potato roots grown in small tubes, a procedure similar to that of Wesemael & Moens (2012), failed to differentiate between the two parents and to detect 2011M1 as an aberrant genotype. Therefore, breeders want more accurate tests for both root and tuber resistance and tolerance preferably, one test for both.…”

Section: Estimates Of Relative Susceptibilitymentioning

confidence: 99%

“…Finding zero nematodes or absence of eggs masses in small tubes (Chen & Roberts, 2003;Wesemael & Moens, 2012) is not an indication of 100% resistance but merely a matter of chance as the probability of zeros increases steeply with decrease of sample size from right-skewed distributions (Mood et al, 1974;. To illustrate this: a needle in a haystack will most probably never be found, no matter how long one searches for it, but investigating one straw is pointless.…”

mentioning

confidence: 99%

“…Currently, screening for resistance to Meloidogyne is mainly done by rating gall formation and/or counting and comparing the egg masses (McSorley & Frederick, 1995;Van der Beek & Mugniéry, 2008;Wesemael & Moens, 2012). This method presents no quantitative information on the final population density (P f ) as the number of developed infective J2 is still unknown.…”

mentioning

confidence: 99%

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Quantitative studies on potato genotypes and fodder radish varieties resistant to the rootknot nematode Meloidogyne chitwoodi

Teklu¹

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Screening of common bean (Phaseolus vulgaris) for resistance against temperate root‐knot nematodes (Meloidogyne spp.)

Abstract: The differences found in host plant status of bean cultivars stress the importance of a correct diagnosis of the Meloidogyne species in agricultural fields. Cultivar Polder showed potential as a trap crop for M. chitwoodi.

Cited by 17 publications

References 13 publications

Root-knot nematodes (Meloidogyne spp.) in Europe

Root-knot nematodes (Meloidogyne spp.) in Europe

Relative susceptibilities of five fodder radish varieties (Raphanus sativus var. Oleiformis) to Meloidogyne chitwoodi

Quantitative studies on potato genotypes and fodder radish varieties resistant to the rootknot nematode Meloidogyne chitwoodi

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