but we all come from the same Out of Africa “, concludes Bertranpetit . Insular dwarfism The small stature of the Andamanese, then, is not explained by a founding effect, that is, that the first inhabitants were short and therefore their descendants now are too. The scientific team has found genetic evidence that this fact is the consequence of an evolutionary process of adaptation and natural selection. ” On a small island there is no place for the entire food chain; therefore, the large predators must disappear and the lower-level animals become small, since it gives them selective advantages ,” says Bertranpetit . This study provides conclusive genetic evidence on this phenomenon, which originated animals such as Myotragus balearicus , a 40-cm goat that inhabited the Balearic Islands, or the one-meter elephants that lived in Sicily.
The current findings could also serve to Cabo Verde Email List explain the stature of fossil hominids on the island of Flores in Indonesia. This work, published today in the journal Nature Genetics, has had the participation of the Institute of Evolutionary Biology (CSIC-UPF), the Genomics Service of UPF, the Autonomous University of Barcelona ( UAB ), the Beijing Institute of Genomics ( BGI , China), GlaxoSmithKline (UK), Radboud University of Nijmegen (Netherlands), National Institute of Biomedical Genomics of India, and Cambridge University (UK). Reference article: Mondal M, Casals F, Zheng H, Dall’Olio GM, Pybus M, Netea MG, Comas D, Laayouni H, Li Q, Majumder PP, Bertranpetit J (2016). Genomic analysis of the Andamanese provides new insights into the spread of humans in Asia and their local adaptations. Nature Genetics
The cold waters of the Weddell Sea, in the Antarctic Ocean, are the scene of the discovery of a new species of marine invertebrate: the nudibranch Doto carinova , described in an article published in the journal PLOS ONE by experts Conxita Àvila, Juan Moles, Manuel Ballesteros and Álvaro Pujals, from the Department of Evolutionary Biology, Ecology and Environmental Sciences and the Biodiversity Research Institute (IRBio) of the University of Barcelona, together with Heike Wägele (Zoological Research Museum Alexander Koenig) and Gabriele Uhl (University of Greifswald), in Germany. The end of polar solitude for Doto antarctica Nudibranchs of the genus Doto are found in oceans around the world and are gastropod mollusks that feed on hydrozoa and cnidarians. In Antarctic latitudes,