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Cytogenetic studies of Nicotiana III Reduction divisions in three hybrids between N glauca and the Alata group



Cytogenetic studies of Nicotiana III Reduction divisions in three hybrids between N glauca and the Alata group



Japanese Jour Genetics: 155-162



The three spp. N. alata (n=9), N. longiflora (n=10) and N. plumbaginifolia (n=10) were crossed each with N. glauca (n=12). All the surveyed hybrids showed considerable irregularities in meiotic behavior in PMC's. Polysporous PMC's were often observed and the hybrids were completely sterile. At the first metaphase in the hybrid N. glauca x N. plumbaginifolia. 0-4 bivalents were counted with the mode at 2II.

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