Počet záznamů: 1  

Repeatless and Repeat-Based Centromeres in Potato: Implications for Centromere Evolution[C][W]

  1. 1.
    0382175 - BC 2013 RIV US eng J - Článek v odborném periodiku
    Gong, Z. - Wu, Y. - Koblížková, Andrea - Torres, G.A. - Wang, K. - Iovene, M. - Neumann, Pavel - Zhang, W. - Novák, Petr - Buell, C.R. - Macas, Jiří - Jiang, J.
    Repeatless and Repeat-Based Centromeres in Potato: Implications for Centromere Evolution[C][W].
    Plant Cell. Roč. 24, č. 9 (2012), s. 3559-3574. ISSN 1040-4651. E-ISSN 1532-298X
    Grant CEP: GA MŠMT(CZ) LH11058
    Výzkumný záměr: CEZ:AV0Z50510513
    Institucionální podpora: RVO:60077344
    Klíčová slova: repetitive sequences * plant satellite repeats * Arabidopsis thaliana * rice centromere * wild potatoes
    Kód oboru RIV: EB - Genetika a molekulární biologie
    Impakt faktor: 9.251, rok: 2012

    Centromeres in most higher eukaryotes are composed of long arrays of satellite repeats. By contrast, most newly formed centromeres (neocentromeres) do not contain satellite repeats and instead include DNA sequences representative of the genome. An unknown question in centromere evolution is how satellite repeat-based centromeres evolve fromneocentromeres. We conducted a genome-wide characterization of sequences associated with CENH3 nucleosomes in potato (Solanum tuberosum). Five potato centromeres (Cen4, Cen6, Cen10, Cen11, and Cen12) consisted primarily of single- or low-copy DNA sequences. No satellite repeats were identified in these five centromeres. At least one transcribed gene was associated with CENH3 nucleosomes. Thus, these five centromeres structurally resemble neocentromeres. By contrast, six potato centromeres (Cen1, Cen2, Cen3, Cen5, Cen7, and Cen8) contained megabase-sized satellite repeat arrays that are unique to individual centromeres.
    Trvalý link: http://hdl.handle.net/11104/0212472

     
     
Počet záznamů: 1  

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