Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
Comment
. 2005 Aug 16;102(33):11573-4.
doi: 10.1073/pnas.0505100102. Epub 2005 Aug 9.

Centromere renewal and replacement in the plant kingdom

R Kelly Dawe  1
Affiliations
Comment

Centromere renewal and replacement in the plant kingdom

R Kelly Dawe. Proc Natl Acad Sci U S A. .
No abstract available

PubMed Disclaimer

Figures

Fig. 1.
Fig. 1.
The distribution of centromere repeats in several rice genomes as described by Lee et al. (3). The phylogeny provided by Ge et al. (18) was used as a template to show evolutionary relationships. Cultivated rice (O. sativa) contains the AA genome, O. rhizomatis contains the CC genome, and O. brachyantha contains the FF genome. The major repeats are indicated with symbols; the size of symbol provides a rough indicator of how prevalent the repeat is. Major events in centromere evolution are indicated with red bars.
Fig. 2.
Fig. 2.
The origin of barley neocentromeres as described by Nasuda et al. (4). The study began with a translocation between barley chromosome 7HS and an unidentified wheat chromosome. An isochromosome derivative of the translocation was identified that had lost the wheat half of the chromosome as well as any evidence of the barley centromere. From the isochromosome, two telosomic derivatives were produced that appeared to have lost even larger segments of the original centromere. The telosomes lacked known centromere repeats from either barley or wheat yet were mitotically and meiotically transmissible.
See this image and copyright information in PMC

Comment on

References

    1. Choo, K. H. A. (2001) Dev. Cell 1, 165–177. - PubMed
    1. Karpen, G. H. & Allshire, R. C. (1997) Trends Genet. 13, 489–496. - PubMed
    1. Lee, H.-R., Zhang, W., Langdon, T., Jin, W., Yan, H., Cheng, Z. & Jiang, J. (2005) Proc. Natl. Acad. Sci. USA 102, 11793–11798. - PMC - PubMed
    1. Nasuda, S., Hudakova, S., Schubert, I., Houben, A. & Endo, T. R. (2005) Proc. Natl. Acad. Sci. USA 102, 9842–9847. - PMC - PubMed
    1. Jiang, J., Birchler J. A., Parrott W. A. & Dawe, R. K. (2003) Trends Plant Sci. 8, 570–575. - PubMed

LinkOut - more resources