Des animaux sous-marins impossibles à classer sur l’arbre de la vie

Provenant des profondeurs du Pacifique, ces créatures ressemblant à des champignons présentent des similitudes avec des formes de vie datant de 600 millions d’années.

C’est l’un de ces mystères dont seule la nature a le secret. Deux espèces d’animaux marins à la forme de champignons ont été découvertes dans les profondeurs de l’océan Pacifique, entre – 400 et – 1 000 mètres de profondeur, au sud-est de l’Australie. Des créatures si méconnues qu’elles n’entrent dans aucune des familles de la classification des êtres vivants.

Source: www.lemonde.fr

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Census of Deep Life call for proposals for sequencing metagenomes or 16S rDNA amplicons of communities from the deep subsurface.

Originally posted on Jonathan Eisen's Lab:

Deep Carbon Observatory: Deep Life Community (DLC) Calls for Proposals

The DLC will accept electronic submissions until September 20, 2014 for proposals to the Census of Deep Life to support high throughput sequencing of metagenomes or 16S rDNA amplicons of communities from the deep subsurface. For more information, go to: https://deepcarbon.net/feature/call-proposals-census-deep-life-sequencing-deadline-20-september-2014#.VAZOZ0u5dFw

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Tracing the genetic origin of Europe’s first farmers reveals insights into their social organization

Originally posted on Haldane's Sieve:

Tracing the genetic origin of Europe’s first farmers reveals insights into their social organization

Anna Szécsényi-Nagy, Guido Brandt, Victoria Keerl, János Jakucs, Wolfgang Haak, Sabine Möller-Rieker, Kitti Köhler, Balázs Mende, Marc Fecher, Krisztián Oross, Tibor Paluch, Anett Osztás, Viktória Kiss, György Pálfi, Erika Molnár, Katalin Sebők, András Czene, Tibor Paluch, Mario Šlaus, Mario Novak, Nives Pećina-Šlaus, Brigitta Ősz, Vanda Voicsek, Krisztina Somogyi, Gábor Tóth, Bernd Kromer, Eszter Bánffy, Kurt Alt

Farming was established in Central Europe by the Linearbandkeramik culture (LBK), a well-investigated archaeological horizon, which emerged in the Carpathian Basin, in today’s Hungary. However, the genetic background of the LBK genesis has not been revealed yet. Here we present 9 Y chromosomal and 84 mitochondrial DNA profiles from Mesolithic, Neolithic Starčevo and LBK sites (7th/6th millennium BC) from the Carpathian Basin and south-eastern Europe. We detect genetic continuity of both maternal and paternal elements during the initial spread of…

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