High frequency of centromere inactivation resulting in stable dicentric chromosomes of maize
نویسندگان
چکیده
منابع مشابه
High frequency of centromere inactivation resulting in stable dicentric chromosomes of maize.
Somatic chromosome spreads from maize (Zea mays L.) plants containing B-A translocation chromosomes undergoing the chromosome type breakage-fusion-bridge cycle were examined by FISH. The size and type of extra chromosomes varied among cells of the same individual. A collection of minichromosomes derived from the chromosome type breakage-fusion-bridge cycle was examined for the presence of stabl...
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BACKGROUND The kinetochore is a multiprotein complex that forms on a chromosomal locus designated as the centromere, which links the chromosome to the spindle during mitosis and meiosis. Most eukaryotes, with the exception of holocentric species, have a single distinct centromere per chromosome, and the presence of multiple centromeres on a single chromosome is predicted to cause breakage and/o...
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15 صفحه اولSwitching the centromeres on and off: epigenetic chromatin alterations provide plasticity in centromere activity stabilizing aberrant dicentric chromosomes.
The kinetochore, which forms on a specific chromosomal locus called the centromere, mediates interactions between the chromosome and the spindle during mitosis and meiosis. Abnormal chromosome rearrangements and/or neocentromere formation can cause the presence of multiple centromeres on a single chromosome, which results in chromosome breakage or cell cycle arrest. Analyses of artificial dicen...
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ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 2006
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.0509650103