Genetic analyses of resistance to the peach root-knot nematode (Meloidogyne floridensis) using microsatellite markers

Maquilan, Mary Ann D.; Olmstead, Mercy; Olmstead, James W.; Dickson, D. W.; Chaparro, José X.

doi:10.1007/s11295-018-1260-2

Cited by 12 publications

(10 citation statements)

References 49 publications

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“…A major gene conferring genetic resistance to M. incognita was identified on LG2 (Cao et al 2011) and cosegregates with a nucleotide-binding site-leucine rich repeat (NBS-LLR) gene (Cao et al 2014). In the same linkage group, a recent study has reported a major locus with dominant/recessive allele that confirms P. kansuensis as a source of resistance to this newly discovered threat in peach, M. floridensis, (Maquilan et al 2018a), this Mf gene, has been mapped in linkage group 2 (Maquilan et al 2018b). Whether the Mf, RMia and PkMi are distinct genes that are tightly linked in a single locus or are part of a single multi-allelic resistance locus is an open question that still needs further studies to elucidate (Saucet et al 2016).…”

Section: Pests and Diseases Tolerance/resistancementioning

confidence: 92%

“…Several sources of resistance have been identified, and for some of them, the responsible genes have been mapped (reviewed in Duval et al 2019). Several studies reported linkages to RKN tolerance to groups 2 and 7 indicating the existence of a clustering of genes in these regions (Maquilan et al 2018b). For example, two resistance genes from myrobalan and Japanese plums, Ma and Rjap, were mapped on LG7 (Claverie et al 2004a).…”

Section: Pests and Diseases Tolerance/resistancementioning

confidence: 99%

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Breeding Climate-Resilient Bananas

Brown

Carpentier

Swennen

2020

Genomic Designing of Climate-Smart Fruit Crops

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Section: Pests and Diseases Tolerance/resistancementioning

confidence: 92%

Section: Pests and Diseases Tolerance/resistancementioning

confidence: 99%

Breeding Climate-Resilient Bananas

Brown

Carpentier

Swennen

2020

Genomic Designing of Climate-Smart Fruit Crops

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“…The seedlings were transplanted into pots filled with 1:4 mixture of sand and peat. The trees from which cutting were obtained were from own-rooted Flordaguard trees grown at the UF Plant Science Research and Education Unit, Citra, FL and had been verified as true to variety based on SSR-marker-based fingerprinting ( Maquilan et al, 2018b ). The experiment consisted of only a single factor (isolate) with eight replicate plants for each of the three isolates.…”

Section: Methodsmentioning

confidence: 99%

“…Flordaguard rootstock found growing in the UF stone fruit orchard. This isolate was used subsequently for genetic studies of resistance in peach rootstocks (Maquilan et al, 2018a(Maquilan et al, , 2018b, as well as comparative genomics of RKN (Szitenberg et al, 2017). The MfGnv14 inoculum used for the current study was collected after two cycles (6 months) of propagation on tomato, whereas the other M. floridensis isolates were maintained over 10 years on greenhouse grown tomato.…”

Section: Nematode Isolatesmentioning

confidence: 99%

Susceptibility of Flordaguard peach rootstock to a resistant-breaking population of Meloidogyne floridensis and two populations of Meloidogyne arenaria

Qiu

Maquilan

Chaparro

et al. 2021

Journal of Nematology

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Cultivar Flordaguard is suggested as a root-knot nematode (RKN) resistant rootstock for Florida peaches, however, RKN disease has been observed on this rootstock in peach orchards. Our goal was to confirm whether the RKN resistance breaking isolates of M. floridensis and M. arenaria indeed could infect and reproduce on the peach rootstock cv. Flordaguard in both laboratory and field studies. Root galling occurred on all peach cultivars evaluated including Flordaguard, Flordaglo, Okinawa, and Lovell, in the presence of the RKN resistance-breaking isolates of M. floridensis (MfGnv14) and two M. arenaria isolates (Ma1 and Ma2). These rootstocks showed varying degrees of susceptibility (to a lesser extent in Okinawa) to these three RKN resistance-breaking isolates. The importance of nematode inoculum concentrations in differentiating between resistance and susceptible plants was demonstrated, and thus are an important factor to consider in nematode resistance breeding programs. In host differential tests the peach-originated isolates of M. floridensis and M. arenaria behaved similarly with the vegetable-originated isolates of M. floridensis on tomato, peanut, watermelon, and tobacco, but showed variable host responses on cotton and pepper. The two M. arenaria isolates from peach reproduced on pepper but not on peanut. To our knowledge this is the first report of M. arenaria race 3 infecting Flordaguard and pepper in Florida. Soil and root samples collected from cv. Flordaguard infected trees at two commercial peach orchards showed that M. floridensis and M. arenaria were established on the rootstock.

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“…Additionally, a Chinese wild peach (P. kansuensis) has been shown to carry an R gene to M. incognita named PkMi [54,55], which is also located on LG2, but its relationship with RMia needs to be clarified. An accession of P. kansuensis has also been proposed by other authors as carrying a single-locus dominant (Mf )/recessive (mf ) model for the inheritance of resistance to M. floridensis [56], as the cognate Mf locus is also located on LG2 [57]. It will be important to determine the spectrum of this resistance towards other RKN species and to shed light on the relationship between the RMia, PkMi and Mf genes from peach resistance sources.…”

Section: Genetics and Mapping Of Rkn Resistancementioning

confidence: 99%

Deciphering Resistance to Root-Knot Nematodes in Prunus for Rootstock Breeding: Sources, Genetics and Characterization of the Ma Locus

Esmenjaud¹

2021

Horticulturae

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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 nematodes parasitizing stone fruit crops and the Prunus species and rootstocks. It then describes the main sources of resistance detected among the Prunus germplasm and focuses on the major resistance genes identified and their characteristics (spectrum, durability, histological mechanism, effect of temperature, interaction with other pests and diseases, etc.). In peach, besides the RMia reference gene, the new genes PkMi and Mf, also located on chromosome 2, need to be characterized regarding their spectrum and relationship. The two other Prunus reference genes, Ma from plum (complete spectrum) and RMja from almond (more restricted spectrum), are orthologs that belong to a TIR-NB-LRR (TNL) cluster on chromosome 7. The review finally summarizes the positional cloning of the Ma gene and the characterization of its unique TNL structure, encompassing a five-times repeated post-LRR domain. Deciphering how this structure is functionally involved in Ma’s remarkable biological properties is a real challenge for the future.

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Genetic analyses of resistance to the peach root-knot nematode (Meloidogyne floridensis) using microsatellite markers

Cited by 12 publications

References 49 publications

Breeding Climate-Resilient Bananas

Breeding Climate-Resilient Bananas

Susceptibility of Flordaguard peach rootstock to a resistant-breaking population of Meloidogyne floridensis and two populations of Meloidogyne arenaria

Deciphering Resistance to Root-Knot Nematodes in Prunus for Rootstock Breeding: Sources, Genetics and Characterization of the Ma Locus

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