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@article{1342189,
author = {Tran, Trunk D. and Cao, Hieu X. and Jovtchev, Gabriele and Neumann, Pavel and Novák, Petr and Fojtová, Miloslava and Vu, Giang T. H. and Macas, Jiří and Fajkus, Jiří and Schubert, Ingo and Fuchs, Joerg},
article_location = {Hoboken (USA)},
article_number = {6},
doi = {http://dx.doi.org/10.1111/tpj.13058},
keywords = {Lentibulariaceae; Genlisea nigrocaulis; G. hispidula; centromeric tandem repeat; centromeric retrotransposons; plant telomeric repeat variants; telomerase; genome evolution},
language = {eng},
issn = {0960-7412},
journal = {Plant Journal},
title = {Centromere and telomere sequence alterations reflect the rapid genome evolution within the carnivorous plant genus Genlisea},
url = {http://onlinelibrary.wiley.com/doi/10.1111/tpj.13058/abstract;jsessionid=5402BAB5B42EB8B0802773E11664BC32.f03t04},
volume = {84},
year = {2015}
}
TY - JOUR
ID - 1342189
AU - Tran, Trunk D. - Cao, Hieu X. - Jovtchev, Gabriele - Neumann, Pavel - Novák, Petr - Fojtová, Miloslava - Vu, Giang T. H. - Macas, Jiří - Fajkus, Jiří - Schubert, Ingo - Fuchs, Joerg
PY - 2015
TI - Centromere and telomere sequence alterations reflect the rapid genome evolution within the carnivorous plant genus Genlisea
JF - Plant Journal
VL - 84
IS - 6
SP - 1087-1099
EP - 1087-1099
PB - Wiley-Blackwell
SN - 09607412
KW - Lentibulariaceae
KW - Genlisea nigrocaulis
KW - G. hispidula
KW - centromeric tandem repeat
KW - centromeric retrotransposons
KW - plant telomeric repeat variants
KW - telomerase
KW - genome evolution
UR - http://onlinelibrary.wiley.com/doi/10.1111/tpj.13058/abstract;jsessionid=5402BAB5B42EB8B0802773E11664BC32.f03t04
L2 - http://onlinelibrary.wiley.com/doi/10.1111/tpj.13058/abstract;jsessionid=5402BAB5B42EB8B0802773E11664BC32.f03t04
N2 - Linear chromosomes of eukaryotic organisms invariably possess centromeres and telomeres to ensure proper chromosome segregation during nuclear divisions and to protect the chromosome ends from deterioration and fusion, respectively. While centromeric sequences may differ between species, with arrays of tandemly repeated sequences and retrotransposons being the most abundant sequence types in plant centromeres, telomeric sequences are usually highly conserved among plants and other organisms. The genome size of the carnivorous genus Genlisea (Lentibulariaceae) is highly variable. Here we study evolutionary sequence plasticity of these chromosomal domains at an intrageneric level. We show that Genlisea nigrocaulis (1C = 86 Mbp; 2n = 40) and G. hispidula (1C = 1550 Mbp; 2n = 40) differ as to their DNA composition at centromeres and telomeres. G. nigrocaulis and its close relative G. pygmaea revealed mainly 161 bp tandem repeats, while G. hispidula and its close relative G. subglabra displayed a combination of four retroelements at centromeric positions. G. nigrocaulis and G. pygmaea chromosome ends are characterized by the Arabidopsis-type telomeric repeats (TTTAGGG); G. hispidula and G. subglabra instead revealed two intermingled sequence variants (TTCAGG and TTTCAGG). These differences in centromeric and, surprisingly, also in telomeric DNA sequences, uncovered between groups with on average a > 9-fold genome size difference, emphasize the fast genome evolution within this genus. Such intrageneric evolutionary alteration of telomeric repeats with cytosine in the guanine-rich strand, not yet known for plants, might impact the epigenetic telomere chromatin modification.
ER -
TRAN, Trunk D., Hieu X. CAO, Gabriele JOVTCHEV, Pavel NEUMANN, Petr NOVÁK, Miloslava FOJTOVÁ, Giang T. H. VU, Jiří MACAS, Jiří FAJKUS, Ingo SCHUBERT a Joerg FUCHS. Centromere and telomere sequence alterations reflect the rapid genome evolution within the carnivorous plant genus Genlisea. \textit{Plant Journal}. Hoboken (USA): Wiley-Blackwell, 2015, roč.~84, č.~6, s.~1087-1099. ISSN~0960-7412. Dostupné z: https://dx.doi.org/10.1111/tpj.13058.
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