Reproduction of root-knot nematode isolates from the middle Black Sea Region of Turkey on tomato with Mi-1.2 resistance gene

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AYDINLI G., Mennan S.

TURKIYE ENTOMOLOJI DERGISI-TURKISH JOURNAL OF ENTOMOLOGY, cilt.43, sa.4, ss.417-427, 2019 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 43 Sayı: 4
  • Basım Tarihi: 2019
  • Doi Numarası: 10.16970/entoted.582406
  • Dergi Adı: TURKIYE ENTOMOLOJI DERGISI-TURKISH JOURNAL OF ENTOMOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, TR DİZİN (ULAKBİM)
  • Sayfa Sayıları: ss.417-427
  • Anahtar Kelimeler: Meloidogyne, Mi-1.2 gene, resistance, tomato, virulent, VEGETABLE-GROWING AREAS, MELOIDOGYNE-JAVANICA, BREAKING POPULATIONS, PLANT-RESISTANCE, MI GENE, INCOGNITA, IDENTIFICATION, VARIABILITY, SELECTION, VIRULENT
  • Ondokuz Mayıs Üniversitesi Adresli: Evet

Özet

Research was conducted to evaluate the reproduction of 90 Meloidogyne isolates including Meloidogyne arenaria (Neal, 1889) Chitwood, 1949 (38 isolates), Meloidogyne incognita (Kofoid & White, 1919) Chitwood, 1949 (4 isolates), Meloidogyne javanica (Treub, 1885) Chitwood, 1949 (11 isolates) and Meloidogyne luci Carneiro et al., 2014 (37 isolates) (Tylenchida: Meloidogynidae) from the middle Black Sea Region of Turkey on susceptible and resistant tomato cultivars in a greenhouse with temperature controlled between 2013 and 2014. Galling index and reproduction factor of nematode isolates were assessed in a pot assay and resistance-breaking isolates were determined according to their reproduction index. Among the isolates, only two isolates of M. luci (Or-2 and Pr-1) had a similar galling index on susceptible and resistant tomato (P <= 0.05). Four isolates of M. luci (cr-19, Or-2, Pr-1 and Pr-2), two isolates of M. arenaria (A-7 and Sn-11) and an isolate of M. incognita (A-11) produced more eggs than the initial inoculum on resistant tomato. These root-knot nematode isolates, except two isolates of M. arenaria, were classified as resistance-breaking isolates having a reproduction index higher than 10%. These findings showed that the Mi-1.2 gene confers resistance to M. luci but four isolates of M. luci could overcome this resistance. This is the first report for resistance-breaking isolates of M. luci in tomato.