Uniparental chromosome elimination at mitosis and interphase in wheat and pearl millet crosses involves micronucleus formation, progressive heterochromatinization, and DNA fragmentation

2005
Authors
Gernand, D.Rutten, T.
Varshney, A.
Rubtsova, M.
Prodanović, Slaven

Brüß, C.
Kumlehn, J.
Matzk, Fritz
Houben, A.
Article (Published version)

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Complete uniparental chromosome elimination occurs in several interspecific hybrids of plants. We studied the mechanisms underlying selective elimination of the paternal chromosomes during the development of wheat (Triticum aestivum) x pearl millet (Pennisetum glaucum) hybrid embryos. All pearl millet chromosomes were eliminated in a random sequence between 6 and 23 d after pollination. Parental genomes were spatially separated within the hybrid nucleus, and pearl millet chromatin destined for elimination occupied peripheral interphase positions. Structural reorganization of the paternal chromosomes occurred, and mitotic behavior differed between the parental chromosomes. We provide evidence for a novel chromosome elimination pathway that involves the formation of nuclear extrusions during interphase in addition to postmitotically formed micronuclei. The chromatin structure of nuclei and micronuclei is different, and heterochromatinization and DNA fragmentation of micronucleated pearl ...millet chromatin is the final step during haploidization.
Source:
Plant Cell, 2005, 17, 9, 2431-2438
DOI: 10.1105/tpc.105.034249
ISSN: 1040-4651
PubMed: 16055632
WoS: 000231598400003
Scopus: 2-s2.0-33644684612
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Poljoprivredni fakultetTY - JOUR AU - Gernand, D. AU - Rutten, T. AU - Varshney, A. AU - Rubtsova, M. AU - Prodanović, Slaven AU - Brüß, C. AU - Kumlehn, J. AU - Matzk, Fritz AU - Houben, A. PY - 2005 UR - http://aspace.agrif.bg.ac.rs/handle/123456789/879 AB - Complete uniparental chromosome elimination occurs in several interspecific hybrids of plants. We studied the mechanisms underlying selective elimination of the paternal chromosomes during the development of wheat (Triticum aestivum) x pearl millet (Pennisetum glaucum) hybrid embryos. All pearl millet chromosomes were eliminated in a random sequence between 6 and 23 d after pollination. Parental genomes were spatially separated within the hybrid nucleus, and pearl millet chromatin destined for elimination occupied peripheral interphase positions. Structural reorganization of the paternal chromosomes occurred, and mitotic behavior differed between the parental chromosomes. We provide evidence for a novel chromosome elimination pathway that involves the formation of nuclear extrusions during interphase in addition to postmitotically formed micronuclei. The chromatin structure of nuclei and micronuclei is different, and heterochromatinization and DNA fragmentation of micronucleated pearl millet chromatin is the final step during haploidization. T2 - Plant Cell T1 - Uniparental chromosome elimination at mitosis and interphase in wheat and pearl millet crosses involves micronucleus formation, progressive heterochromatinization, and DNA fragmentation EP - 2438 IS - 9 SP - 2431 VL - 17 DO - 10.1105/tpc.105.034249 ER -
@article{ author = "Gernand, D. and Rutten, T. and Varshney, A. and Rubtsova, M. and Prodanović, Slaven and Brüß, C. and Kumlehn, J. and Matzk, Fritz and Houben, A.", year = "2005", abstract = "Complete uniparental chromosome elimination occurs in several interspecific hybrids of plants. We studied the mechanisms underlying selective elimination of the paternal chromosomes during the development of wheat (Triticum aestivum) x pearl millet (Pennisetum glaucum) hybrid embryos. All pearl millet chromosomes were eliminated in a random sequence between 6 and 23 d after pollination. Parental genomes were spatially separated within the hybrid nucleus, and pearl millet chromatin destined for elimination occupied peripheral interphase positions. Structural reorganization of the paternal chromosomes occurred, and mitotic behavior differed between the parental chromosomes. We provide evidence for a novel chromosome elimination pathway that involves the formation of nuclear extrusions during interphase in addition to postmitotically formed micronuclei. The chromatin structure of nuclei and micronuclei is different, and heterochromatinization and DNA fragmentation of micronucleated pearl millet chromatin is the final step during haploidization.", journal = "Plant Cell", title = "Uniparental chromosome elimination at mitosis and interphase in wheat and pearl millet crosses involves micronucleus formation, progressive heterochromatinization, and DNA fragmentation", pages = "2438-2431", number = "9", volume = "17", doi = "10.1105/tpc.105.034249" }
Gernand, D., Rutten, T., Varshney, A., Rubtsova, M., Prodanović, S., Brüß, C., Kumlehn, J., Matzk, F.,& Houben, A.. (2005). Uniparental chromosome elimination at mitosis and interphase in wheat and pearl millet crosses involves micronucleus formation, progressive heterochromatinization, and DNA fragmentation. in Plant Cell, 17(9), 2431-2438. https://doi.org/10.1105/tpc.105.034249
Gernand D, Rutten T, Varshney A, Rubtsova M, Prodanović S, Brüß C, Kumlehn J, Matzk F, Houben A. Uniparental chromosome elimination at mitosis and interphase in wheat and pearl millet crosses involves micronucleus formation, progressive heterochromatinization, and DNA fragmentation. in Plant Cell. 2005;17(9):2431-2438. doi:10.1105/tpc.105.034249 .
Gernand, D., Rutten, T., Varshney, A., Rubtsova, M., Prodanović, Slaven, Brüß, C., Kumlehn, J., Matzk, Fritz, Houben, A., "Uniparental chromosome elimination at mitosis and interphase in wheat and pearl millet crosses involves micronucleus formation, progressive heterochromatinization, and DNA fragmentation" in Plant Cell, 17, no. 9 (2005):2431-2438, https://doi.org/10.1105/tpc.105.034249 . .