Observations on dicentrics in living cells
In previously irradiated endosperm cells of Haemanthus katherinae (Bloody Lily) studied ia vitro by means of microcinematography, two-kinetochore chromatids and dicentric chromosomes were observed. Breaking of such dicentric chromatids and chromosomes was analyzed. Behavior of some of the dicentric chromosomes during anaphase deserves special attention: interlocking dicentrics cut one through another and rejoin in a few minutes. In this way from a metaphase interlocking dicentric, two sister anaphase dicentrics are formed. Interlocked dicentrics can also uncoil and not break at all. In this case no activity was observed in one kinetochore of one dicentric in later stages of anaphase (two kinetochores were active in one dicentric and only one in its sister). Analysis of chromosome movements in two-kinetochore chromatids and dicentrics is also presented.
- Research Organization:
- Univ. of Lund, Sweden
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-18-000066
- OSTI ID:
- 4177893
- Journal Information:
- Chromosoma, Journal Name: Chromosoma Journal Issue: 1 Vol. 14; ISSN 0009-5915
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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