The article From Sea to Sea written by Susan L. Williams is about the genome sequence of the marine flowering plant eelgrass and how it evolved to a terrestrial specie and back to a marine specie.  Eelgrass is part of the seagrass family and is known to highly specialized and sexually reproductive. Eelgrass has gone through many major habitat shifts. It started as marine green algae and then evolved to a terrestrial flowering plant, then the angiosperms entered freshwater and formed eelgrass and a few other seagrass species. Seagrasses are not widely studied and usually are ignored by biologists. Eelgrass is a very important because it supports many different species and organisms, especially endangered sea otters. The root systems on eelgrasses are very important because they help stabilize sediments and shorelines. This seagrass specie has many different uses. In Mexico man cultures rely on the grass and in Europe they use eelgrass to stuff furniture and to insulate homes. Eelgrass is very adaptable, it has grown under sea ice, and in the warm temperatures of Baja California. This amazing ability to adapt might be crucial to the survival for eelgrass with the warming climates and the oceans becoming more acidic.

The question that is being answered in this article is how eelgrass evolved and to gain a better understanding of the plants evolution. The author used expert analysis to gather data on the genome of eelgrass and the data method analysis is quantitative.

This research article was well written and easy enough for anyone to understand. The author did a good job covering all the transitions eelgrass went through and there were no bias opinions.

I found it very interesting that a plant species could start as marine algae, evolve into a terrestrial plant and then evolve back to a marine seagrass.