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Table 4 Response of selected tomato varieties to the three predominant West African tomato-infecting begomoviruses (tomato yellow leaf curl Mali virus, tomato leaf curl Mali virus, and pepper yellow vein virus, tomato yellow leaf crumple virus)

From: Connecting smallholder tomato producers to improved seed in West Africa

Susceptiblea Moderate resistant Resistant Highly resistant
‘Roma VF’ (Tropicasem) HA 3060b (Hazera Genetics Ltd.) Atakb (Enza Zaden Benelux B.V.) ‘CLN 2545B’ (AVRDC)
  ‘CLN2123A’ (AVRDC) Bybalb (DeRuiter Seeds Group B.V.) GemPrideb (Seminis Inc.)
  ‘CLN2545A’ (AVRDC) ‘Cheyenne E448’ (Syngenta AG) ‘Nirouz TH99806’ (Syngenta AG)
 Industry DR 10403b (DeRuiter Seeds Group B.V.) ‘Favi 9’ (Hebrew University of Jerusalem) Realezab (De Ruiter Seeds Group B.V.)
  ‘F1 3019 Galina’ (Tropicasem) ‘HMX 4810’ (Harris Moran Seed Company Inc.) ‘Yassamen TH 99802’ (Syngenta AG)
  Lety F1b (DeRuiter Seeds Group B.V.) Yosrab (Enza Zaden Benelux B.V.)
  Chenoab (Enza Zaden Benelux B.V.) ‘TY 75’ (Takii & Co., Ltd.)
   ‘Cheyenne E448’ (Syngenta AG)  
   ‘Favi 9’ (Hebrew University of Jerusalem)  
  Ponchitab (Enza Zaden Benelux B.V.)  
  Thoriyab (DeRuiter Seeds Group B.V.)  
  1. Varieties in italics were ranked in the top 11 of the variety trials
  2. Viruses were delivered by agroinoculation of ~3- to 4-week-old plants followed by a second inoculation seven days later
  3. aPlants were visually rated for disease symptoms 21 days after the first inoculation according a 0–4 scale with 0 = no symptoms, 1 = slight upcurling of leaves, 2 = upcurling and vein purpling, 3 = stunting and upcurling and vein purpling, and 4 = severe stunting and distorted growth and curling and vein purpling; the presence of viral infection was determined by PCR with virus-specific primers. Response to the viruses was as follows: susceptible, rating of 3 or 4 and PCR-positive with a strong signal (DNA band); moderate resistant, rating of 2 and PCR-positive with a strong signal; resistant, rating of 0–1 and PCR-positive with a moderate–strong signal; and highly resistant, rating of 0 and PCR-negative or positive with a weak signal
  4. bThis variety ranked in the top 11 in the trials