How one cell became many

• Autores: Bob Holmes
• Localización: New scientist, ISSN 0262-4079, Nº. 3027, 2015, pág. 11
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • At some point after life emerged, perhaps as early as 2.1 billion years ago, some cells came together to form a multicellular organism--the first steptocomplex life, such as humans. To investigate how this came about in 2011 William Ratcliff and Michael Travisano at the University of Minnesota in St Paul coaxed unicellular yeast to take on a multicellular "snowflake" farm by repeatedly taking the fastest-settling yeast out of a culture and using it to found new cultures. Ratclfff has now found that the switch to clumping behavior can be driven by a single gene ACE2 that controls separation of the cells produced by cell division.