Abstract:The semisterile tobacco plant BG-141.4 was produced using both irradiation with X-rays and anther culture. The embryological investigation of the progeny of this plant following selfing (R1) revealed disturbances in the structure of the mature embryo sacs (ESs). The major abnormality was a decrease in cell number in the ESs. Other abnormalities included disturbances in the distribution of nuclei and in cell differentiation. The overall frequency of abnormal ESs in individual plants investigated varied from 8% … Show more
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