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@article{2252800, author = {Chumova, Zuzana and Belyayev, Alexander and Malík Mandáková, Terezie and Zeisek, Vojtech and Hodkova, Eva and Semberova, Kristyna and EustonandBrown, Douglas and Travnicek, Pavel}, article_location = {Lausanne}, article_number = {SEP}, doi = {http://dx.doi.org/10.3389/fpls.2022.982852}, keywords = {genome size; Greater Cape Floristic Region (GCFR); HybSeq; niche modelling; Pteronia; repeatome}, language = {eng}, issn = {1664-462X}, journal = {Frontiers in Plant Science}, title = {The relationship between transposable elements and ecological niches in the Greater Cape Floristic Region: A study on the genus Pteronia (Asteraceae)}, url = {https://www.frontiersin.org/articles/10.3389/fpls.2022.982852/full}, volume = {13}, year = {2022} }
TY - JOUR ID - 2252800 AU - Chumova, Zuzana - Belyayev, Alexander - Malík Mandáková, Terezie - Zeisek, Vojtech - Hodkova, Eva - Semberova, Kristyna - Euston-Brown, Douglas - Travnicek, Pavel PY - 2022 TI - The relationship between transposable elements and ecological niches in the Greater Cape Floristic Region: A study on the genus Pteronia (Asteraceae) JF - Frontiers in Plant Science VL - 13 IS - SEP SP - 982852 EP - 982852 PB - FRONTIERS MEDIA SA SN - 1664462X KW - genome size KW - Greater Cape Floristic Region (GCFR) KW - HybSeq KW - niche modelling KW - Pteronia KW - repeatome UR - https://www.frontiersin.org/articles/10.3389/fpls.2022.982852/full N2 - Non-coding repetitive DNA (repeatome) is an active part of the nuclear genome, involved in its structure, evolution and function. It is dominated by transposable elements (TEs) and satellite DNA and is prone to the most rapid changes over time. The TEs activity presumably causes the global genome reorganization and may play an adaptive or regulatory role in response to environmental challenges. This assumption is applied here for the first time to plants from the Cape Floristic hotspot to determine whether changes in repetitive DNA are related to responses to a harsh, but extremely species-rich environment. The genus Pteronia (Asteraceae) serves as a suitable model group because it shows considerable variation in genome size at the diploid level and has high and nearly equal levels of endemism in the two main Cape biomes, Fynbos and Succulent Karoo. First, we constructed a phylogeny based on multiple low-copy genes that served as a phylogenetic framework for detecting quantitative and qualitative changes in the repeatome. Second, we performed a comparative analysis of the environments of two groups of Pteronia differing in their TEs bursts. Our results suggest that the environmental transition from the Succulent Karoo to the Fynbos is accompanied by TEs burst, which is likely also driving phylogenetic divergence. We thus hypothesize that analysis of rapidly evolving repeatome could serve as an important proxy for determining the molecular basis of lineage divergence in rapidly radiating groups. ER -
CHUMOVA, Zuzana, Alexander BELYAYEV, Terezie MALÍK MANDÁKOVÁ, Vojtech ZEISEK, Eva HODKOVA, Kristyna SEMBEROVA, Douglas EUSTON-BROWN a Pavel TRAVNICEK. The relationship between transposable elements and ecological niches in the Greater Cape Floristic Region: A study on the genus Pteronia (Asteraceae). \textit{Frontiers in Plant Science}. Lausanne: FRONTIERS MEDIA SA, 2022, roč.~13, SEP, s.~982852-982869. ISSN~1664-462X. Dostupné z: https://dx.doi.org/10.3389/fpls.2022.982852.
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