Genome sequence of the coffee root-knot nematode <i>Meloidogyne exigua</i>

Phan, Ngan Thi; Besnard, Guillaume; Ouazahrou, Rania; Sánchez, William Solano; Gil, Lisa; Manzi, Sophie; Bellafiore, Stéphane

doi:10.21307/jofnem-2021-065

Cited by 7 publications

(4 citation statements)

References 32 publications

(39 reference statements)

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“…The concentration of 10.6 μg mL -1 applied to the soil inhibited the reproduction and development of Tylenchulus semipenetrans females for 50 days (Huang and Van Gundy, 1976). Aldicarb affects the migration of J2 in the soil and its motility in solutions (Huang et al, 1983;Sikora and Hartwig, 1991). Hafez and Sudararaj (2000) observed 100% control when J2 of M. incognita were incubated for 14, 21, 28, and 35 days in soils treated with 4.5 kg of aldicarb per hectare.…”

Section: Resultsmentioning

confidence: 99%

“…Aldicarb acts directly on the root-knot nematode Heterodera rostochiensis and not indirectly by acting on the plant (Hague and Pain, 1973;Miller, 1970). It also prevents the penetration of the potato roots, resulting in the accumulation of J2 of H. rostochiensis in the soil (Steele and Rodges, 1975) and affects the migration of J2 in the soil and motility in solutions (Huang et al, 1983;Sikora and Hartwig, 1991). The evolution of knowledge from these studies leads to the conceptualization of aldicarb as a molecule that interferes in the cycle of root-knot nematodes, acting in the temporary and reversible immobilization of J2 in the soil, being, then, a molecule with nematostatic effect.…”

Section: Introductionmentioning

confidence: 99%

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INTERFERENCE OF ALDICARB IN INFECTIVE FORMS OF Meloidogyne incognita AND ITS EFFECTS ON REPRODUCTION IN SOYBEAN

Silva

Campos

Rocha

et al. 2020

Rev. Agric. Neotrop.

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The effect of aldicarb on mortality, motility, and reproduction of M. incognita in soybean was studied. The mortality of second-stage juveniles (J2) in aldicarb solution (5 and 50 μg mL-1) was only high at 20 days of exposure, being higher in the concentration of 50 μg mL-1 and lower in control (water). Motility was inversely proportional to the exposure time, and at 20 days of incubation, the number of J2 mobiles was statistically equal for both concentrations evaluated. There was a reduction inversely proportional to the number of galls and eggs per gram of root according to the J2 incubation time in water and aldicarb (5, 10, and 20 days). J2, when incubated in 50 μg mL-1 aldicarb for 5 and 10 days, always provided the same values regarding the number of galls and eggs per gram of root. The incubation for 20 days resulted in the loss of J2 infectivity, both in water and in aldicarb (5 and 50 μg mL-1), with practically no galls and eggs. When the J2 were incubated in the soil with the application of aldicarb solution (5 and 50 μg mL-1) or water (control), followed by soybean planting, 5, 10 and 20 days after, the J2 infectivity was null in the treatments with aldicarb (5 and 50 μg mL-1). However, when the J2-infested soil was sprayed with pure water (control), gall formation and reproduction decreased with the J2 incubation period, with a drastic reduction from the 5th day. Therefore, exposure to aldicarb affects the life cycle of M. incognita in soybeans.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

INTERFERENCE OF ALDICARB IN INFECTIVE FORMS OF Meloidogyne incognita AND ITS EFFECTS ON REPRODUCTION IN SOYBEAN

Silva

Campos

Rocha

et al. 2020

Rev. Agric. Neotrop.

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“…However, these strategies require the frequent generation of new cultivars (as is the case for wheat, barley and rice) and have yet to be implemented in commercial varieties. HIGS may soon be the tool of choice in the development of resistant coffee cultivars against the problematic root-knot nematode pathogen now that the genome sequence of Meloidogyne exigua has been assembled and annotated (Phan et al, 2021). Given that successful experimental HIGS plants have shown resistance against rust fungi in wheat (Panwar et al, 2018;Qi et al, 2019;Zhu et al, 2017), HIGS may also be promising for the prospect of extending this approach to CLR.…”

Section: Pyramiding R Genes and Rna Interference In Coffeementioning

confidence: 99%

Alternative plant protection strategies for tomorrow's coffee

2022

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Around 2 billion cups of coffee are consumed daily, worldwide (Reay, 2019). However, the coffee plant is under threat due to its vulnerability to a plethora of plant pests and diseases, exacerbated by climate change (Avelino, ten Hoopen, et al., 2012;Kumar et al., 2016).In fact, the typical coffee farmer faces a diverse onslaught by an assortment of beetles, bacteria, fungi and nematodes in just one production season (Waller et al., 2007). Traditional chemical pesticides (i.e., insecticides and fungicides) have been a mainstay of the Green Revolution, and thus commonly deployed in coffee production. With more than 470 licensed products approved for use in Brazil alone (Coelho et al., 2019), these agrochemicals are being used as a primary means of management in the onset of pests and diseases across all agricultural sectors including coffee (

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“…Thereafter, the Heterodera glycines genome was sequenced, assembled, and annotated by American scientists using triple sequencing technology [14,15]. In addition, Globodera ellingtonae [16], Bursaphelenchus mucronatus [17], Meloidogyne enterolobii [7,18], Meloidogyne graminicola [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20], Meloidogyne floridensis [7,21], M. arenaria [22], M. javanica [23], Meloidogyne luci [24], Ditylenchus destructor [25], and Ditylenchus dipsaci [26]; the banana root (Pratylenchus coffeae) [27], perforated banana (Radopholus similis) [28,29], and reniform nematodes (Rotylenchulus reniformis) [30]; Heterodera schachtii [31], Meloidogyne chitwoodi [7,32], Meloidogyne exigua [33], Aphelenchoides besseyi [34], Bursaphelenchus okinawaensis [35], and more than 20 plant parasitic nematodes have been sequenced. Several other plant nematode genomes are in the process of being sequenced [36].…”

Section: Introductionmentioning

confidence: 99%

The Plant Parasitic Nematodes Database: A Comprehensive Genomic Data Platform for Plant Parasitic Nematode Research

Zhuge,

Zhou,

Zhou

et al. 2023

IJMS

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Plant parasitic nematodes are important phytopathogens that greatly affect the growth of agricultural and forestry plants. Scientists have conducted several studies to prevent and treat the diseases they cause. With the advent of the genomics era, the genome sequencing of plant parasitic nematodes has been considerably accelerated, and a large amount of data has been generated. This study developed the Plant Parasitic Nematodes Database (PPND), a platform to combine these data. The PPND contains genomic, transcriptomic, protein, and functional annotation data, allowing users to conduct BLAST searches and genome browser analyses and download bioinformatics data for in-depth research. PPND will be continuously updated, and new data will be integrated. PPND is anticipated to become a comprehensive genomics data platform for plant parasitic nematode research.

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Genome sequence of the coffee root-knot nematode Meloidogyne exigua

Cited by 7 publications

References 32 publications

INTERFERENCE OF ALDICARB IN INFECTIVE FORMS OF Meloidogyne incognita AND ITS EFFECTS ON REPRODUCTION IN SOYBEAN

INTERFERENCE OF ALDICARB IN INFECTIVE FORMS OF Meloidogyne incognita AND ITS EFFECTS ON REPRODUCTION IN SOYBEAN

Alternative plant protection strategies for tomorrow's coffee

The Plant Parasitic Nematodes Database: A Comprehensive Genomic Data Platform for Plant Parasitic Nematode Research

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