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Resistance to root‐knot nematodes Meloidogyne spp. in woody plants
Author(s) -
Saucet Simon Bernard,
Van Ghelder Cyril,
Abad Pierre,
Duval Henri,
Esmenjaud Daniel
Publication year - 2016
Publication title -
new phytologist
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.742
H-Index - 244
eISSN - 1469-8137
pISSN - 0028-646X
DOI - 10.1111/nph.13933
Subject(s) - rootstock , biology , prunus , botany , woody plant , resistance (ecology) , horticulture , agronomy
Summary Root‐knot nematodes ( RKN s) Meloidogyne spp. cause major damage to cultivated woody plants. Among them, Prunus , grapevine and coffee are the crops most infested by worldwide polyphagous species and species with a more limited distribution and/or narrower host range. The identification and characterization of natural sources of resistance are important steps to develop RKN control strategies. In woody crops, resistant rootstocks genetically different from the scion of agronomical interest may be engineered. We describe herein the interactions between RKN s and different woody crops, and highlight the plant species in which resistance and corresponding resistance ( R ) genes have been discovered. Even though grapevine and, to a lesser extent, coffee have a history of rootstock selection for RKN resistance, few cases of resistance have been documented. By contrast, in Prunus , R genes with different spectra have been mapped in plums, peach and almond and can be pyramided for durable resistance in interspecific rootstocks. We particularly discuss here the Ma Toll/interleukin‐1 receptor‐like‐nucleotide binding‐leucine‐rich repeat gene from Myrobalan plum, one of the longest plant R genes cloned to date, due to its unique biological and structural properties. RKN R genes in Prunus will enable us to carry out molecular studies aimed at improving our knowledge of plant immunity in woody plants.ContentsSummaryI. Introduction 42 II. RKN species in woody plants 43 III. Resistance in the genus Prunus 44 IV. Resistance in grapevine 47 V. Resistance in coffee 49 VI. Resistance in other woody crops 50 VII. Relationships between RKN resistance and diseases 50 VIII. Towards a better understanding of NB-LRR (NLR) immunity in woody plants 50 IX. Conclusion 52Acknowledgements 52References 52