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Seed longevity is a crucial issue for germplasm conservation and seed marketing. This trait is determined not only by environmental conditions, but also by genetic factors. Molecular mapping of responsible loci has been performed with several crops, but not with tobacco ( Nicotianatabacum L.). In the present study, we investigate 122 recombinant inbred lines derived from...
With 2 figures and 3 tables
AbstractThe wild species Nicotiana africana is a source of Potato virus Y (PVY) resistance. Tolerance to PVY was transferred from N. africana to Nicotiana tabacum by two backcrosses with variety ‘BP‐210’. Successive generations were obtained by selfing. Cytological investigations covered counts of mitotic chromosomes, study of meiotic configurations and pollen viability...
Potato virus Y (PVY) causes a disease which reduces the quality of raw material as well as the yield. This study on resistance included tobacco transgenic lines belonging to four cultivars modified with three genetic constructions, containing Lettuce mosaic virus coat protein gene (LMV CP) and PVY replicase gene used in sense (ROKY1) and antisense (ROKY2) orientation. The plants were inoculated with...
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