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  • Title: [Structure of the interphase nucleus and formation of chromosome aberrations in Crepis capillaris].
    Author: Generalova MV.
    Journal: Genetika; 1975; 11(7):40-54. PubMed ID: 1218723.
    Abstract:
    A distribution of chromosome X-rays induced aberrations was studied in 2n and 4n root cells of Crepis capillaris at different stages of the mitotic cycle. Participation of various chromosomes in aberrations was found to be different from theoretically expected one found from the chromosome length. The chromosome A was characterized by excession of intrachromosome aberrations (terminal deletions, isolocuses, duplications and rings). The chromosome D very often took part in the formation of rings. The chromosome C was characterized by an excession of interchromosome aberrations and the lack of intrachromosome ones. The data obtained support the model of interphase nucleus proposed by Wagenaar. The frequency of exchanges of homologues in 2n and 4n cells well correlated with theoretically expected. The inhibition of mitosis increased the exchanges of homologues. In 2n and 4n cells asymmetrical translocations predominated over symmetrical ones.
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