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Retrotransposons represent the most labile fraction for genomic rearrangements ...
Bento, M.; Tomás, D.; Viegas, W.; Silva, M.Understanding how increased genome size and diversity within polyploid genomes impacts plant evolution and breeding continues to be challenging. Although historical studies by McClintock suggested the importance of transposable elements mediated by polyploidisation on genomic changes, data from plant crosses remain scarce. Despite the absence of a conclusive proof regarding autonomous retrotransposon movement i...
Differential effects of high-temperature stress on nuclear topology and transcr...
Tomás, D.; Brazão, J.; Viegas, W.; Silva, M.The plant stress response has been extensively characterized at the biochemical and physiological levels. However, knowledge concerning repetitive sequence genome fraction modulation during extreme temperature conditions is scarce. We studied high-temperature effects on subtelomeric repetitive sequences (pSc200) and 45S rDNA in rye seedlings submitted to 40 ° C during 4 h. Chromatin organization patterns were e...
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