NILs of Tomato except for Ph-2 gene
Laterrot, H.
Station d'Amelioration des Plantes Maraicheres. Domaine St-Maurice, 84143 MONTFAVET Cedex, France.
During the 1960's we have received from M.E. Gallegly various resistant lines to Phytophthora infestans. All
the french isolates studied attacked W Va 106 having the gene Ph controlling a hypersensitivity to the pathotype 0.
The resistance of W Va'63 havingPh plus a multigenic resistance to the pathotype 1 (Gallegly 1960) given a partial
control of the disease against all our isolates (Laterrot 1975). The resistance of W Va'63 was introduced from
Lycopersicon pimpinellifolium W Va 700. The resistance of W Va 700 was attributed to a single gene : Ph-2
(Turkenstein 1973). All our observations agree with a monogenic control with incomplete dominance of a partial
resistance.
We have used the more agronomically interesting lines received from M.E. Gallegly. These lines were W
Va'63 and X 384. We present here 6 NILs obtained in 6 very different genetic backgrounds. They are by
chronological obtention:
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