MAJEROVÁ, Eva, Terezie MANDÁKOVÁ, GTH VU, Jiří FAJKUS, Martin LYSÁK a Miloslava FOJTOVÁ. Chromatin features of plant telomeric sequences at terminal vs. internal positions. Frontiers in Plant Science. LAUSANNE: Frontiers Research Foundation, 2014, roč. 5, November, s. "nestránkováno", 10 s. ISSN 1664-462X. Dostupné z: https://dx.doi.org/10.3389/fpls.2014.00593. |
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@article{1227544, author = {Majerová, Eva and Mandáková, Terezie and Vu, GTH and Fajkus, Jiří and Lysák, Martin and Fojtová, Miloslava}, article_location = {LAUSANNE}, article_number = {November}, doi = {http://dx.doi.org/10.3389/fpls.2014.00593}, keywords = {telomere; chromatin; epigenetics; Nicotiana tabacum; Ballantinia antipoda; histone modifications; DNA methylation}, language = {eng}, issn = {1664-462X}, journal = {Frontiers in Plant Science}, title = {Chromatin features of plant telomeric sequences at terminal vs. internal positions}, url = {http://journal.frontiersin.org/article/10.3389/fpls.2014.00593/full}, volume = {5}, year = {2014} }
TY - JOUR ID - 1227544 AU - Majerová, Eva - Mandáková, Terezie - Vu, GTH - Fajkus, Jiří - Lysák, Martin - Fojtová, Miloslava PY - 2014 TI - Chromatin features of plant telomeric sequences at terminal vs. internal positions JF - Frontiers in Plant Science VL - 5 IS - November SP - "nestránkováno" EP - "nestránkováno" PB - Frontiers Research Foundation SN - 1664462X KW - telomere KW - chromatin KW - epigenetics KW - Nicotiana tabacum KW - Ballantinia antipoda KW - histone modifications KW - DNA methylation UR - http://journal.frontiersin.org/article/10.3389/fpls.2014.00593/full L2 - http://journal.frontiersin.org/article/10.3389/fpls.2014.00593/full N2 - Epigenetic mechanisms are involved in regulation of crucial cellular processes in eukaryotic organisms. Data on the epigenetic features of plant telomeres and their epigenetic regulation were published mostly for Arabidopsis thaliana, in which the presence of interstitial telomeric repeats (ITRs) may interfere with genuine telomeres in most analyses. Here, we studied the epigenetic landscape and transcription of telomeres and ITRs in Nicotiana tabacum with long telomeres and no detectable ITRs, and in Ballantinia antipoda with large blocks of pericentromeric ITRs and relatively short telomeres. Chromatin of genuine telomeres displayed heterochromatic as well as euchromatic marks, while ITRs were just heterochromatic. Methylated cytosines were present at telomeres and ITRs, but showed a bias with more methylation toward distal telomere positions and different blocks of B. antipoda ITRs methylated to different levels. Telomeric transcripts TERRA (G-rich) and ARRET (C-rich) were identified in both plants and their levels varied among tissues with a maximum in blossoms. Plants with substantially different proportions of internally and terminally located telomeric repeats are instrumental in clarifying the chromatin status of telomeric repeats at distinct chromosome locations. ER -
MAJEROVÁ, Eva, Terezie MANDÁKOVÁ, GTH VU, Jiří FAJKUS, Martin LYSÁK a Miloslava FOJTOVÁ. Chromatin features of plant telomeric sequences at terminal vs. internal positions. \textit{Frontiers in Plant Science}. LAUSANNE: Frontiers Research Foundation, 2014, roč.~5, November, s.~''nestránkováno'', 10 s. ISSN~1664-462X. Dostupné z: https://dx.doi.org/10.3389/fpls.2014.00593.
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