作者: J. Yaghoobi , J. L. Yates , V. M. Williamson
DOI: 10.1007/S00438-005-1149-2
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摘要: Currently, the only genetic resistance against root-knot nematodes in cultivated tomato Solanum lycopersicum (Lycopersicon esculentum) is due to gene Mi-1. Another gene, Mi-3, identified related wild species peruvianum peruvianum) confers that are virulent on lines carry Mi-1, and effective at temperatures which Mi-1 not (above 30°C). Two S. populations segregating for Mi-3 were used develop a high-resolution map of region chromosome 12. BACs carrying flanking markers construct contig spanning region. Markers generated from BAC-end sequences mapped plants recombination events had occurred near Mi-3. Comparison with physical indicated marker order conserved between peruvianum. The 600 kb Mi-3-flanking TG180 NR18 corresponds distance about 7.2 cM We have completely cosegregates as well within 0.25 gene. These can be introduce into tomato, either by conventional breeding or cloning strategies.