News Life Seaweed genome reveals tools for multicellular lifestyle Genetic study of a brown alga also shows genes important for life in the intertidal zone By Tina Hesman Saey June 2, 2010 at 5:10 pm - More than 2 years ago Share this:Share Share via email (Opens in new window) Email Click to share on Facebook (Opens in new window) Facebook Click to share on Reddit (Opens in new window) Reddit Click to share on X (Opens in new window) X Click to print (Opens in new window) Print The genetic blueprints of a type of seaweed may contain a map for building multicellular organisms, a new study suggests. ALGA DECODED Scientists have deciphered the genetic makeup of a type of brown seaweed called Ectocarpus siliculosus, shown underwater.