Daniel Esmenjaud's research while affiliated with Université Côte d'Azur and other places
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Publications (174)
Root-knot nematodes (RKNs) Meloidogyne spp. are extremely polyphagous pests and four species severely affect grapevines throughout the world: M. arenaria, M. incognita, M. javanica and M. ethiopica. Californian populations of M. arenaria and M. incognita are reported to be virulent to widely used rootstocks and to the rootstock ‘Harmony’ in particu...
Grapevine is severely affected by two major nepoviruses that cause grapevine degeneration: the grapevine fanleaf virus (GFLV) and the arabis mosaic virus (ArMV), specifically transmitted by the dagger nematodes Xiphinema index and X. diversicaudatum, respectively. While natural resistance to X. index has been shown to be a promising alternative for...
Root-knot nematode (RKN) species are predominant pests of crops, attacking stone fruit crops Prunus spp. under Mediterranean climate conditions worldwide. Natural resistance for rootstock breeding is a control method that is gaining interest as an alternative to the highly toxic nematicides. This review first reports an outline of the root-knot nem...
Abstract
The dagger nematode Xiphinema index has a major economic impact due to its transmission of Grapevine fanleaf virus (GFLV) to grapevines. This vector nematode, which was introduced into Western countries from the Middle East together with the domesticated grapevine, mostly reproduces by meiotic parthenogenesis, but microsatellite multilocus...
Plants trigger appropriate defense responses, notably, through intracellular nucleotide-binding (NB) and leucine-rich repeat (LRR)-containing receptors (NLRs) that detect secreted pathogen effector proteins. In NLR resistance genes, the toll/interleukin-1 receptor (TIR)-NB-LRR proteins (TNLs) are an important subfamily, out of which approximately h...
Breeding for varieties carrying natural resistance (R) against plant-parasitic nematodes is a promising alternative to nematicide ban. In perennial crops, the long plant-nematode interaction increases the risk for R breaking and R durability is a real challenge. In grapevine, the nematode has a high economic impact by transmitting (GFLV) and, to de...
Background:
Muscadine (Muscadinia rotundifolia) is known as a resistance source to many pests and diseases in grapevine. The genetics of its resistance to two major grapevine pests, the phylloxera D. vitifoliae and the dagger nematode X. index, vector of the Grapevine fanleaf virus (GFLV), was investigated in a backcross progeny between the F1 res...
Muscadine (Muscadinia rotundifolia) is known as a resistance source to many pests and diseases in grapevine. The genetics of its resistance to two major grapevine pests, the phylloxera D. vitifoliae and the dagger nematode X. index, vector of the Grapevine fanleaf virus (GFLV), was investigated in a backcross progeny between the F1 resistant hybrid...
Breeding for varieties carrying natural resistance (R) against plant-parasitic nematodes is a promising alternative to nematicide ban. In perennial crops, the long plant-nematode interaction increases the risk for R breaking and R durability is a real challenge. In grapevine, the nematode Xiphinema index has a high economical impact by transmitting...
Background: Muscadine (Muscadinia rotundifolia) is known as a resistance source to many pests and diseases in grapevine. The genetics of its resistance to two major grapevine pests, the phylloxera D. vitifoliae and the dagger nematode X. index, vector of the Grapevine fanleaf virus (GFLV) was investigated in a backcross progeny between the F1 resis...
Muscadine ( Muscadinia rotundifolia ) is known as a resistance source to many pests and diseases in grapevine. The genetics of its resistance to two major grapevine pests, the phylloxera D. vitifoliae and the dagger nematode X. index , vector of the Grapevine fanleaf virus (GFLV) was investigated in a backcross progeny between the F1 resistant hybr...
Background: Muscadine (Muscadinia rotundifolia) is known as a resistance source to many pests and diseases in grapevine. The genetics of its resistance to two major grapevine pests, the phylloxera D. vitifoliae and the dagger nematode X. index, vector of the Grapevine fanleaf virus (GFLV) was investigated in a backcross progeny between the F1 resis...
Muscadine ( Muscadinia rotundifolia ) is known as a resistance source to many pests and diseases in grapevine. The genetics of its resistance to two major grapevine pests, the phylloxera D. vitifoliae and the dagger nematode X. index , vector of the Grapevine fanleaf virus (GFLV) was investigated in a backcross progeny between the F1 resistant hybr...
The NLRs or NBS-LRRs (nucleotide-binding, leucine-rich-repeat) form the largest resistance gene family in plants, with lineage-specific contingents of TNL, CNL and RNL subfamilies and a central role in resilience to stress. The origin, evolution and distribution of NLR sequences has been unclear owing in part to the variable size and diversity of t...
The soil-borne nematode Xiphinema index is closely linked to its main host, the grapevine, and presents a major threat to vineyards worldwide due to its ability to transmit Grapevine fanleaf virus (GFLV). The phylogeography of X. index has been studied using mitochondrial and microsatellite markers in samples from most regions of its worldwide dist...
Root-knot nematodes (RKN) Meloidogyne spp. are worldwide pests that affect a considerable number of plants among which stone fruits Prunus spp. are severely attacked. Prevalent RKN species are M. arenaria, M. incognita and M. javanica in stone fruits but the emergent M. ethiopica and M. enterolobii are also reported to challenge perennial crops. In...
Root-knot nematodes (RKNs) are considerable polyphagous pests that severely challenge plants worldwide and especially perennials. The specific genetic resistance of plants mainly relies on the NBS-LRR genes that are pivotal factors for pathogens control. In Prunus spp., the Ma plum and RMja almond genes possess different spectra for resistance to R...
Nematodes have evolved the ability to parasitize plants on at least four independent occasions, with plant parasites present in Clades 1, 2, 10 and 12 of the phylum. In the case of Clades 10 and 12, horizontal gene transfer of plant cell wall degrading enzymes from bacteria and fungi has been implicated in the evolution of plant parasitism. We have...
Xiphinema index belongs to the Family Longidoridea (Order Dorylaimida, Phylum Nematoda). The economic impact of the dagger nematode X. index is high in Western vineyards because it transmits the deleterious Grapevine fanleaf virus (GFLV), the major viral disease of grapevine and causes Grapevine fanleaf degeneration (‘cournoué’). Characterizing the...
This book, containing 20 chapters, deals with almond taxonomy, morphology, physiology, cultivation history, production, breeding (classical and molecular), cultivar development, genomics, pollen-style (in)compatibility, rootstock development, propagation, orchard management, environmental and water requirements, nutrition, diseases, pests, harvesti...
In Chile, stone fruits (Prunus spp.) are mainly produced in four Chilean regions of the Central Valley (latitude 30°S-37°S), where they account for 80% of the national fruit production area. In these regions, root-knot nematodes (RKN) Meloidogyne spp. have a high economical impact and M. ethiopica is the prevalent species on many crops. The use of...
Root-knot nematodes (RKNs) 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 importa...
Background:
Plants develop sustainable defence responses to pathogen attacks through resistance (R) genes contributing to effector-triggered immunity (ETI). TIR-NB-LRR genes (TNL genes) constitute a major family of ETI R genes in dicots. The putative functions or roles of the TIR, NB and LRR domains of the proteins they encode (TNLs) are well docu...
The definitive version is available at http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1469-8137
I. II. III. IV. V. VI. VII. VIII. IX. References SUMMARY: Root-knot nematodes (RKNs) Meloidogyne spp. cause major damage to cultivated woody plants. Among them, Prunus, grapevine and coffee are the crops most infested by worldwide polyphagous speci...
Root-knot nematodes (RKN; Meloidogyne spp.) are predominant polyphagous pests of crops in the Central Valley of Chile. Twenty RKN populations from this region were collected from diverse crops and subsequently identified with both sequence-characterized amplified region and isoenzyme markers. Populations included three RKN species: Meloidogyne ethi...
Le porte-greffe NemadexAB, obtenu par Alain Bouquet à l’INRA de Montpellier est inscrit au catalogue depuis 2011, présente des aptitudes à retarder les contaminations par la virose du court-noué du fait de son parent Muscadinia rotundifolia. Mais c’est un porte-greffe exigent, présentant une faible vigueur conférée et une sensibilité à la chlorose...
Les nématodes à galles ([i]Meloidogyne[/i] spp.) sont de ravageurs extrêmement polyphages des racines et dont l’impact est très important à l’échelle globale. La stratégie de résistance aux espèces prédominantes [i]M. arenaria[/i], [i]M. incognita[/i] et[i] M. javanica[/i], est une alternative prioritaire chez de nombreuses plantes cultivées confro...
Los nemátodos del género Meloidogyne son considerados unos de los más dañinos en el mundo. En frutales de carozo pueden ocasionar pérdidas cercanas al 15%. Con el objetivo de determinar la virulencia del género Meloidogyne en portainjertos de Prunus sp. se colectó 20 poblaciones en el Valle Central de Chile. A partir de ellas se inició la crianza d...
Abstract In order to cope with phylloxera, most grapes worldwide must be grafted on a
rootstock. Furthermore, grapevine rootstocks are an essential underground structure for the
plant to face various pests and diseases and to adapt to different types of soil. This review
focuses on the existing information about rootstock properties in relation...
Fanleaf degeneration is considered the most damaging viral disease of grapevine. The two major nepoviruses involved are Grapevine fanleaf virus (GFLV) and Arabis mosaic virus (ArMV) which are respectively and specifically transmitted by the dagger nematodes Xiphinema index and X. diversicaudatum. The methods described below are aimed at detecting f...
Stone fruit crops Prunus spp. grown under Mediterranean climates are severely damaged by root-knot nematodes (RKN) Meloidogyne spp. Breeding for RKN resistantrootstocks is a promising control alternative to nematicide ban. Resistance (R) genes have been identified and mapped in plums (Ma and Rjap), peach (RMia) and almond (RMja). Among those genes,...
The ectoparasitic dagger nematode, Xiphinema index, transmits Grapevine fanleaf virus (GFLV), which is responsible for a progressive degeneration of grapevines occurring across the world's vineyards. Since 2000, new data on the biology and ecology of the vector nematode and on the virus-nematode and plant-nematode interactions have contributed to e...
The ectoparasitic dagger nematodes Xiphinema index and X. diversicaudatum, often at low numbers in the soil, are vectors of grapevine nepoviruses, which cause huge agronomical problems for the vineyard industry. This study reports a method, based on real-time PCR, for the specific detection of these species and of the closely related non-vector spe...
The RMia gene, which confers resistance (R) to the root-knot nematodes (RKN) Meloidogyne incognita and Meloidogyne arenaria, has been shown to segregate in the peach rootstocks Nemared, Shalil, and Juseitou on LG2 of the Prunus map. Here, we report the high-resolution mapping of RMia in Nemared, using the peach genome sequence and 790 individuals f...
The ectoparasitic dagger nematode, Xiphinema index, transmits Grapevine fanleaf virus (GFLV), which is responsible for a progressive degeneration of grapevines occurring across the world's vineyards. Since 2000, new data on the biology and ecology of the vector nematode and on the virus-nematode and plant-nematode interactions have contributed to e...
p style="text-align: justify;"> Aim : Grapevine plants from the Bordeaux wine region (France) showing symptoms of fanleaf degeneration, but negative for the two main fanleaf viruses were screened by ELISA for other nepoviruses that could explain the symptoms.
Methods and results : ELISA tests were performed over a 3-year period (2009-2011) on leave...
Root-knot nematodes (RKN) Meloidogyne spp. are highly polyphagous pests that parasitize Prunus crops in Mediterranean climates. Breeding for RKN-resistant Prunus cultivars, as an alternative to the now-banned use of nematicides, is a real challenge, as the perennial nature of these trees increases the risk of resistance breakdown. The Ma plum resis...
Articles correspondant à plusieurs colloques organisés dans le cadre des séminaires du CTPS en 2012.
The dagger nematode Xiphinema index has a high economic impact in vineyards by direct pathogenicity and above all by transmitting the Grapevine fanleaf virus (GFLV). Agrochemicals have been largely employed to restrict the spread of GFLV by reducing X. index populations but are now banned. As an alternative to nematicides, the use of fallow plants...
The ectoparasitic dagger nematode Xiphinema index specifically transmits Grapevine fanleaf virus (GFLV) which is responsible for a progressive degeneration of grapevines occurring in most vineyards worldwide. Because of the ban on nematicides and of the economically unacceptable interval (>7 years) required for nematode eradication between two succ...
Root-knot nematode (RKN) Meloidogyne species are major polyphagous pests of most crops worldwide, and cultivars with durable resistance are urgently needed because of nematicide bans. The Ma gene from the Myrobalan plum (Prunus cerasifera) confers complete-spectrum, heat-stable, and high-level resistance to RKN, which is remarkable in comparison wi...
The Ma gene from Myrobalan plum is a TNL gene that confers a high-level resistance to all root-knot nematodes of major economic importance, including Meloidogyne incognita, M. javanica, M. arenaria, and M. enterolobii. The nematode behavior in the roots and the corresponding histological mechanisms of the Ma resistance to M. incognita in the resist...
Resistant rootstocks offer an alternative to pesticides for the control of soil pests. In Prunus spp., resistance loci to root-knot nematodes (RKN) have been mapped and a transformation method is needed to validate candidate genes. Our efforts have focused on the generation of transformed hairy-roots and composite plants appropriate for nematode in...
Gutiérrez-Gutiérrez, C., Palomares-Rius, J.E., Cantalapiedra-Navarrete, C., Landa, B.B., Esmenjaud, D. & Castillo, P. (2010). Molecular analysis and comparative morphology to resolve a complex of cryptic Xiphinema species. —Zoologica Scripta, 39, 483–498.
During nematode surveys in cultivated and natural environments in southern Spain nine populati...
Grapevine fanleaf virus (GFLV) is vectored specifically from grapevine to grapevine by the ectoparasitic nematode Xiphinema index. Limited information is available on the vector competency of X. index populations from diverse geographical origins. We determined the transmissibility of two GFLV strains showing 4.6% amino acid divergence within their...
In Prunus spp., resistance genes to root-knot nematodes (RKN), Meloidogyne arenaria, Meloidogyne incognita, Meloidogyne javanica, and Meloidogyne floridensis, confer either a complete spectrum, e.g., the Ma and Rjap genes in Myrobalan and Japanese plums (subgenus Prunophora), respectively, or a more restricted spectrum, e.g., the RMia gene (M. aren...
Markers used for the location of the RMja gene. Markers are grouped in the eight Prunus linkage groups (LG) and ordered within each group as in the reference Prunus map T×E (Dirlewanger et al. 2004b)
The dagger nematode Xiphinema index specifically transmits Grapevine fanleaf virus (GFLV), which causes progressive grape degeneration in vineyards worldwide. Nematode-resistant rootstocks are a promising alternative to the ban of nematicides. We report the evaluation, under controlled conditions in two independent experiments, of the host suitabil...
Asexuality is an important mode of reproduction in eukaryotic taxa and has a theoretical advantage over sexual reproduction because of the increased ability to propagate genes. Despite this advantage, hidden signs of cryptic sex have been discovered in the genomes of asexual organisms. This has provided an interesting way to address the evolutionar...
Arabis mosaic virus (ArMV) and Grapevine fanleaf virus (GFLV), two closely related members of the genus Nepovirus, family Secoviridae, are responsible for fanleaf degeneration disease of grapevines. ArMV and GFLV are specifically transmitted by the ectoparasitic soilborne nematodes Xiphinema diversicaudatum and X. index, respectively. Previous work...
Sources of resistance in Prunus spp. exhibit different spectra to the root-knot nematodes (RKN) Meloidogyne incognita, Meloidogyne javanica and Meloidogyne floridensis. In this Prunus genus, two dominant genes, Ma with a complete spectrum from the heterozygous Myrobalan plums P.2175 and P.2980 (section Euprunus; subgenus Prunophora) and RMia with a...
We report isolation, characterization and cross-species amplification of nine microsatellite loci from the phytoparasitic nematode Xiphinema index, the vector of grapevine fanleaf virus. Levels of polymorphism were evaluated in 62 individuals from two X. index populations. The number of alleles varies between two and 10 depending on locus and popul...
The status of selection studies on resistant grapevine rootstocks for management of root-knot nematodes Meloidogyne spp. and of Xiphinema index, vector of Grapevine fanleaf virus, is reviewed. The biology, ecology, symptomatology and control of root-knot nematodes are revised, for application in the
selection and breeding of resistant rootstocks. D...
Grapevine fanleaf virus (GFLV) and Arabis mosaic virus (ArMV), two nepoviruses highly detrimental to grapes, are specifically transmitted by the ectoparasitic nematodes Xiphinema index and X. diversicaudatum, respectively. This specificity of transmission is determined by the coat protein (2CCP). A 3D model of GFLV was constructed by homology with...
Genetic markers can assist plant breeders to improve their breeding outcomes in several ways, from assessing genetic diversity
of the germplasm used in breeding to marker assisted selection (MAS) to variety protection (Charcosset and Moreau, 2004).
Major investments in genomic research over the last 15 years have made a wealth of markers available...
Serie : Plant genetics and genomics / Crops and models ; volume 6 - Series editor : Richard A. Jorgensen
The nematode Xiphinema index is, economically, the major virus vector in viticulture, transmitting specifically the Grapevine fanleaf virus (GFLV), the most severe grapevine virus disease worldwide. Increased knowledge of the spatial distribution of this nematode, both horizontally and vertically, and of correlative GFLV plant infections, is essent...
This book summarizes current state of knowledge in peach botany, production and postharvest management. Specific topics covered consisted of: botany and taxonomy (chapter 1); history of cultivation and trends in China (chapter 2); classical genetics and breeding (chapter 3); genetic engineering and genomics (chapter 4); low-chill cultivar developme...
Stone fruits (Prunus spp.) are mainly grown in Mediterranean climates. The objective of a rootstock breeding program is to obtain a new 2 and 3-way rootstock generation, not only resistant to RKN nematodes, but also better adapted to Mediterranean environments that exhibit abiotic stresses (drought, chlorosis and waterlogging). This was done by the...
The Myrobalan plum Prunus cerasifera clones ‘P,2175’ and ‘P,1079’ carry single major genes (Ma1 and Ma2. respectively) for resistance to the predominant root–knot nematode (RKN) species Meloidogyne arenaria (MA), Meloidogyne incognita (MI) and Meloidogyne jaranica(MJ). The Myrobalan plum clone ‘P.2980’ is another complete–spec–trum source bearing f...
Graft incompatibility, shown by many Prunus rootstocks with most of apricot cultivars grown in France, is one of the major problems for apricot rootstock improvement. The P × dasycarpa program was initiated by INRA in co-operation with the Extension Service for Nurseries (CEPEM) and a private company, and is funded by the French Ministry of Agricul...
ABSTRACT Grapevine fanleaf virus (GFLV) is transmitted specifically from grapevine to grapevine by the ectoparasitic root-feeding nematode Xiphinema index. Limited information is available on the survival of X. index in vineyard soil and on the retention of GFLV by X. index over extended periods of time. We addressed these two issues by quantifying...
Grapevine fanleaf virus (GFLV) is specifically transmitted from plant to plant by the ectoparasitic nematode Xiphinema index. A sensitive and reliable procedure was developed to readily detect GFLV in a single viruliferous X. index, regardless of the nematode origin, i.e. greenhouse rearings or vineyard soils. The assay is based on bead milling to...
Citations
... Over 100 species of Meloidogyne have been explored worldwide thus far, which have been found distributed in temperate, tropical, and equatorial regions of the world [16][17][18][19]. Root-knot nematodes have been found seriously infecting peaches and have become a severe issue for the majority of peach growers and nurserymen in many regions having tropical and Mediterranean climates [13,[20][21][22]. Root-knot nematodes cause reduction in fruit production of many economically important species of Prunus including Prunus persica. ...
... Common symptoms in these hosts include chlorotic spotting, mosaic symptoms, necrotic lesions, ring spots or pattern lines and deformed fruit (Pospieszny et al., 2004;Šneideris et al., 2012;Rymelska et al., 2013;Šneideris and Staniulis, 2014). Infected grapevines showed typical symptoms of fanleaf disease on bunches that were very small and drastically reduced vine productivity (Laveau et al., 2013). Infected tomato plants display different type of symptoms depending on the variety and TBRV isolate (Pospieszny et al., 2020). ...
Reference: Tomato black ring virus (ring spot of beet)
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... The TNL resistosome structures of ROQ1 and RPP1 have been characterized; they have a β-sandwich fold and an Ig-like domain that are similar to those of C-JIDs (Martin et al. 2020;Ma et al. 2020). The 150 amino acid C-JID domain is characterized by the consensus motif P-X-[Y/E/W]-F, a histidine residue, conserved hydrophobic and cysteine residues, and Cys-Gly (Saucet et al. 2021). Similar to antibodies, the TNL C-JID domain binds to effector proteins only at certain residues. ...
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... Since the late 19th century, grapevine has been grown grafted in most of the world largely because of Phylloxera (Daktulosphaira vitifoliae). Rootstocks allow tolerance to phylloxera, but they also play a major role in water and mineral nutrient absorption, as reviewed by Ollat et al. (2016). They strongly interact with scion genotypes and modify whole plant development through the modification of yield and vigour in an environmentally dependent manner (Tandonnet et al., 2010;Tandonnet et al., 2008;Tardáguila et al., 1995). ...
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... Currently, MAB in apple is mainly applied for the identification of seedlings carrying a pyramided set of resistance genes (e.g., apple scab, powdery mildew, and fire blight resistance loci; Bus et al. 2009;Baumgartner et al. 2015) and improved fruit quality traits (Zhu and Barritt 2008;Longhi et al. 2013b) using SSR or SCAR markers. For apple scab (Rvi2, Rvi4, Rvi5, Rvi6, Rvi11, Rvi12, and Rvi15); powdery mildew (Pl2); fire blight (FB_E, FB_MR5); and RAA (Dp-fl) resistance genes, linked SNP markers have already been found (Jänsch et al. 2015;Padmarasu et al. 2014;Pagliarani et al. 2016;Cova et al. 2015). ...
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... Among grapevine viral diseases, fanleaf degeneration is the most destructive [4]. In France, this disease is estimated to be present over more than 60% of the vineyard hectarage [5]. The main virus responsible for fanleaf degeneration is grapevine fanleaf virus (GFLV), a soil-borne nepovirus of the Secoviridae family, specifically transmitted by the ectoparasitic dagger nematode Xiphinema index [6]. ...
... De même, 5 ans de jachère n'ont pas réussi à éliminer X. index et GFLV dans une parcelle naturellement infectée [15]. Pour espérer une éradication de la totalité de la population des X. index virulifères d'une parcelle de vigne, il est recommandé de laisser le sol en jachère totale pendant une période de 7 ans minimum [37,38]. Ces données de persistance observées sur le terrain sont corroborées par des données expérimentales obtenues en conditions contrôlées. ...
... These symptoms can vary in intensity and range five to seven years fallow period decreases the nematode vector population, but this option is economically unpractical for grape growers [23]. Rootstocks tolerant to X. index are available but they seem to only delay the infection by GFLV [25][26][27]. The use of chemicals to control nematode vector populations has been banned in Europe due to environmental and human health concerns [28,29]; the use of plants exhibiting negative impact on nematodes are currently under study [30] with particular interest of the Fabaceae family exhibiting nematicidal activity [31]. ...
... Breeding programs aiming at phylloxera resistance use hybridized V. cinerea Arnold [14][15][16] or Muscadinia rotundifolia Michx. [13,17], which are intended to prevent phylloxera feeding and suppress gall formation. Among them, 'Börner' (V. ...
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... Although Xiphinema had a low average density among all sampled locations, it was the third highest density genus in the city of Anta Gorda (NP6), with 167 nematodes per 200 cm −3 of soil. Xiphinema is an ectoparasite reported in various perennial crops such as apples, peaches, and grapevines [33][34][35]. The most relevant damage caused by representatives of this genus is related to the transmission of phytopathogenic viruses [36]. ...
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