Differential response to root-knot nematodes in prunus species and correlative genetic implications

Responses of 17 Prunus rootstocks or accessions (11 from the subgenus Amygdalus and 6 from the subgenus Prunophora) were evaluated against 11 isolates of Meloidogyne spp. including one M. arenaria, four M. incognita, four M. javanica, one M. hispanica, and an unclassified population from Florida. Ch...

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Veröffentlicht in:Journal of nematology. - 1969. - 29(1997), 3 vom: 09. Sept., Seite 370-80
1. Verfasser: Esmenjaud, D (VerfasserIn)
Weitere Verfasser: Minot, J C, Voisin, R, Pinochet, J, Simard, M H, Salesses, G
Format: Aufsatz
Sprache:English
Veröffentlicht: 1997
Zugriff auf das übergeordnete Werk:Journal of nematology
Schlagworte:Journal Article Amygdalus Meloidogyne arenaria Meloidogyne incognita Meloidogyne javanica Prunophora Prunus amygdalus Prunus cerasifera Prunus persica resistance
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100 1 |a Esmenjaud, D  |e verfasserin  |4 aut 
245 1 0 |a Differential response to root-knot nematodes in prunus species and correlative genetic implications 
264 1 |c 1997 
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520 |a Responses of 17 Prunus rootstocks or accessions (11 from the subgenus Amygdalus and 6 from the subgenus Prunophora) were evaluated against 11 isolates of Meloidogyne spp. including one M. arenaria, four M. incognita, four M. javanica, one M. hispanica, and an unclassified population from Florida. Characterization of plant response to root-knot nematodes was based on a gall index rating. Numbers of females and juveniles plus eggs in the roots were determined for 10 of the rootstocks evaluated against one M. arenaria, one M. incognita, one M. javanica, and the Florida isolate. These 10 rootstocks plus Nemaguard and Nemared were retested by growing three different rootstock genotypes together in containers of soil infested individually with each of the above four isolates. Garfi and Garrigues almonds, GF.305 and Rutgers Red Leaf peaches, and the peach-almond GF.677 were susceptible to all isolates. Differences in resistance were detected among the other rootstocks of the subgenus Amygdalus. The peach-almond GF.557 and Summergrand peach were resistant to M. arenaria and M. incognita but susceptible to M. javanica and the Florida isolate. Nemaguard, Nemared, and its two hybrids G x N no. 15 and G x N no. 22 were resistant to all but the Florida isolate. In the subgenus Prunophora, Myrobalan plums P.1079, P.2175, P.2980, and P.2984; Marianna plum 29C; and P. insititia plum AD.101 were resistant to all isolates. Thus, two different genetic systems of RKN resistance were found in the subgenus Amygdalus: one system acting against M. arenaria and M. incognita, and another system also acting against M. javanica. Prunophora rootstocks bear a complete genetic system for resistance also acting against the Florida isolate. The hypotheses on the relationships between these systems and the corresponding putative genes of resistance are presented 
650 4 |a Journal Article 
650 4 |a Amygdalus 
650 4 |a Meloidogyne arenaria 
650 4 |a Meloidogyne incognita 
650 4 |a Meloidogyne javanica 
650 4 |a Prunophora 
650 4 |a Prunus amygdalus 
650 4 |a Prunus cerasifera 
650 4 |a Prunus persica 
650 4 |a resistance 
700 1 |a Minot, J C  |e verfasserin  |4 aut 
700 1 |a Voisin, R  |e verfasserin  |4 aut 
700 1 |a Pinochet, J  |e verfasserin  |4 aut 
700 1 |a Simard, M H  |e verfasserin  |4 aut 
700 1 |a Salesses, G  |e verfasserin  |4 aut 
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