Resistance in Lycopersicon peruvianum to Isolates of Mi Gene-Compatible Meloidogyne Populations
Root-knot nematode resistance of F progeny of an intraspecific hybrid (Lycopersicon peruvianum var. glandulosum Acc. No. 126443 x L. peruvianum Acc. No. 270435), L. esculentum cv. Piersol (possessing resistance gene Mi), and L. esculentum cv. St. Pierre (susceptible) was compared. Resistance to 1) i...
| Veröffentlicht in: | Journal of nematology. - 1969. - 22(1990), 4 vom: 16. Okt., Seite 585-9 |
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| 1. Verfasser: | |
| Weitere Verfasser: | , , |
| Format: | Aufsatz |
| Sprache: | English |
| Veröffentlicht: |
1990
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| Zugriff auf das übergeordnete Werk: | Journal of nematology |
| Schlagworte: | Journal Article Lycopersicon esculentum Lycopersicon peruvianum Meloidogyne arenaria Meloidogyne hapla Meloidogyne incognita Meloidogyne javanica resistance root-knot nematode tomato |
| Zusammenfassung: | Root-knot nematode resistance of F progeny of an intraspecific hybrid (Lycopersicon peruvianum var. glandulosum Acc. No. 126443 x L. peruvianum Acc. No. 270435), L. esculentum cv. Piersol (possessing resistance gene Mi), and L. esculentum cv. St. Pierre (susceptible) was compared. Resistance to 1) isolates of two Meloidogyne incognita populations artificially selected for parasitism on tomato plants possessing the Mi gene, 2) the wild type parent populations, 3) four naturally occurring resistance (Mi gene)-breaking populations of M. incognita, M. arenaria, and two undesignated Meloidogyne spp., and 4) a population of M. hapla was indexed by numbers of egg masses produced on root systems in a greenhouse experiment. Artificially selected M. incognita isolates reproduced abundantly on Piersol, but not (P = 0.01) on resistant F hybrids. Thus, the gene(s) for resistance in the F hybrid differs from the Mi gene in Piersol. Four naturally occurring resistance-breaking populations reproduced extensively on Piersol and on the F hybrid, demonstrating ability to circumvent both types of resistance. Meloidogyne hapla reproduced on F hybrid plants, but at significantly (P = 0.01) lower levels than on Piersol |
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| Beschreibung: | Date Completed 14.07.2011 Date Revised 09.01.2024 published: Print Citation Status PubMed-not-MEDLINE |
| ISSN: | 0022-300X |