Počet záznamů: 1  

Differential amplification of satellite PaB6 in chromosomally hypervariable Prospero autumnale complex (Hyacinthaceae)

  1. 1.
    0435933 - BC 2015 RIV GB eng J - Článek v odborném periodiku
    Emadzade, K. - Jang, T.S. - Macas, Jiří - Kovařík, Aleš - Novák, Petr - Parker, J. - Weiß-Schneeweiss, H.
    Differential amplification of satellite PaB6 in chromosomally hypervariable Prospero autumnale complex (Hyacinthaceae).
    Annals of Botany. Roč. 114, č. 8 (2014), s. 1597-1608. ISSN 0305-7364. E-ISSN 1095-8290
    Grant CEP: GA ČR GBP501/12/G090
    Institucionální podpora: RVO:60077344 ; RVO:68081707
    Klíčová slova: Hyacinthaceae * PaB6 * pericentric satellite DNA * next-generation sequencing * Prospero autumnale
    Kód oboru RIV: EB - Genetika a molekulární biologie; EB - Genetika a molekulární biologie (BFU-R)
    Impakt faktor: 3.654, rok: 2014

    Chromosomal evolution, including numerical and structural changes, is a major force in plant diversification and speciation. This study addresses genomic changes associated with the extensive chromosomal variation of the Mediterranean Prospero autumnale complex (Hyacinthaceae), which includes four diploid cytotypes each with a unique combination of chromosome number (x = 5, 6, 7), rDNA loci and genome size. Although present in all Prospero species, PaB6 has undergone differential amplification only in chromosomally variable P. autumnale, particularly in cytotypes B6B6 and B5B5. These arose via independent chromosomal fusions from x = 7 to x = 6 and 5, respectively, accompanied by genome size increases. The copy numbers of satellite DNA PaB6 are among the highest in angiosperms, and changes of PaB6 are exceptionally dynamic in this group of closely related cytotypes of a single species.
    Trvalý link: http://hdl.handle.net/11104/0239796

     
     
Počet záznamů: 1  

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