Creativity in education: challenging the assumptions

Journal article (editorial)The creative process is mysterious, intriguing and elusive. The above quote from celebrated Japanese novelist Haruki Murakami evokes an other-wordliness, a dream-like state, an escape from reality that many other creative individuals through the years have described in similar terms. It is perhaps this type of artistic creativity - with its allusion to an enhanced or altered mental state which generates something original and beautiful - that appeals to so many people who have researched creative processes and promoted the benefits of creativity for society

New insights into the origin of the B genome of hexaploid wheat: Evolutionary relationships at the SPA genomic region with the S genome of the diploid relative Aegilops speltoides

<p>Abstract</p> <p>Background</p> <p>Several studies suggested that the diploid ancestor of the B genome of tetraploid and hexaploid wheat species belongs to the <it>Sitopsis </it>section, having <it>Aegilops speltoides </it>(SS, 2n = 14) as the closest identified relative. However molecular relationships based on genomic sequence comparison, including both coding and non-coding DNA, have never been investigated. In an attempt to clarify these relationships, we compared, in this study, sequences of the Storage Protein Activator (SPA) locus region of the S genome of <it>Ae. speltoides </it>(2n = 14) to that of the A, B and D genomes co-resident in the hexaploid wheat species (<it>Triticum aestivum, AABBDD</it>, 2n = 42).</p> <p>Results</p> <p>Four BAC clones, spanning the SPA locus of respectively the A, B, D and S genomes, were isolated and sequenced. Orthologous genomic regions were identified as delimited by shared non-transposable elements and non-coding sequences surrounding the SPA gene and correspond to 35 268, 22 739, 43 397 and 53 919 bp for the A, B, D and S genomes, respectively. Sequence length discrepancies within and outside the SPA orthologous regions are the result of non-shared transposable elements (TE) insertions, all of which inserted after the progenitors of the four genomes divergence.</p> <p>Conclusion</p> <p>On the basis of conserved sequence length as well as identity of the shared non-TE regions and the SPA coding sequence, <it>Ae speltoides </it>appears to be more evolutionary related to the B genome of <it>T. aestivum </it>than the A and D genomes. However, the differential insertions of TEs, none of which are conserved between the two genomes led to the conclusion that the S genome of <it>Ae. speltoides </it>has diverged very early from the progenitor of the B genome which remains to be identified.</p

A universal classification of eukaryotic transposable elements implemented in Repbase

In response to the correspondence by Vladimir V. Kapitonov and Jerzy Jurka (A universal classification of eukaryotic transposable elements implemented in Repbase. Nature Rev. Genet. 9 (2008), doi:10.1038/nrg2165-c

Reply: A unified classification system for eukaryotic transposable elements should reflect their phylogeny

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Reply:A unified classification system for eukaryotic transposable elements should reflect their phylogeny

The goal of our Guidelines article (A unified classification system for eukaryotic transposable elements Nature Rev. Genet. 8, 973–982 (2007

Diversité moléculaire de la région chromosomique contrôlant la résistance à la rouille foliaire dans les collections de peupliers: Restitution appel à projets BRG 2007-2008

National audienc

Diversité moléculaire de la région chromosomique contrôlant la résistance à la rouille foliaire dans les collections de peupliers: Restitution appel à projets BRG 2007-2008

National audienc

Diversité moléculaire de la région chromosomique contrôlant la résistance à la rouille foliaire dans les collections de peupliers

National audienc