Alien Registration- Martin, Aline (Van Buren, Aroostook County)

https://digitalmaine.com/alien_docs/33140/thumbnail.jp

Aléria – Mare Stagno

La campagne de 2016 a confirmé l’importance du site qui avait fait l’objet de sondages en 2015. Les travaux concernent un établissement de taille modeste dans la sphère d’influence de la colonie d’Aléria. Les informations livrées par la fouille sont précieuses car une large part de la zone est couverte par le vignoble qui rend les vestiges inaccessibles. Les ruines romaines se situent à 290 m au sud de la tour Génoise de Mare Stagno, en plein centre d’un cordon de terre qui sépare l’étang de ..

Le FORUM, Vol. 34 No. 4

https://digitalcommons.library.umaine.edu/francoamericain_forum/1028/thumbnail.jp

Analysis of the P. lividus sea urchin genome highlights contrasting trends of genomic and regulatory evolution in deuterostomes

Sea urchins are emblematic models in developmental biology and display several characteristics that set them apart from other deuterostomes. To uncover the genomic cues that may underlie these specificities, we generated a chromosome-scale genome assembly for the sea urchin Paracentrotus lividus and an extensive gene expression and epigenetic profiles of its embryonic development. We found that, unlike vertebrates, sea urchins retained ancestral chromosomal linkages but underwent very fast intrachromosomal gene order mixing. We identified a burst of gene duplication in the echinoid lineage and showed that some of these expanded genes have been recruited in novel structures (water vascular system, Aristotle's lantern, and skeletogenic micromere lineage). Finally, we identified gene-regulatory modules conserved between sea urchins and chordates. Our results suggest that gene-regulatory networks controlling development can be conserved despite extensive gene order rearrangement

Alien Registration- Martin, Aline (Van Buren, Aroostook County)

https://digitalmaine.com/alien_docs/33140/thumbnail.jp