Subscribe
Subscribe
MY AMERICAN SCIENTIST
LOG IN! REGISTER!
SEARCH
 
Logo IMG
HOME > My Amsci > Restricted Access

Rapid Evolution in Eggs and Sperm



Restricted Access The content you've requested is available without charge only to active Sigma Xi members and American Scientist subscribers.


If you are an active member or an individual subscriber, please log in now in order to access this article.

If you are not a member or individual subscriber, you can:



Abstract:

2013-05ClawF1.jpgClick to Enlarge ImageAlthough they serve the same function across the plant, animal and fungal kingdoms, sperm and eggs vary wildly in their structure and biochemistry, even among closely related species. How did such divergent structures evolve, from the hooked, fast-swimming rodent sperm clumps to the two-inch–long fruit fly sperm? Many genes that determine sperm and egg structure and biochemistry are rapidly evolving, constantly changing the chemical environment necessary for the sperm to bind to the egg. These genes can be some of the most rapidly evolving in the genome, at times outstripping the evolutionary rate of genes involved in immune responses. Claw describes evolutionary contexts  from model systems (abalone, fruit flies and primates) that can give rise to rapid evolution in gametes.


Connect With Us:

Facebook Icon Sm Twitter Icon Google+ Icon Pinterest Icon RSS Feed

Subscribe to Free eNewsletters!

  • American Scientist Update

  • An early peek at each new issue, with descriptions of feature articles, columns, and more. Every other issue contains links to everything in the latest issue's table of contents.

  • Scientists' Nightstand

  • News of book reviews published in American Scientist and around the web, as well as other noteworthy happenings in the world of science books.

    To sign up for automatic emails of the American Scientist Update and Scientists' Nightstand issues, create an online profile, then sign up in the My AmSci area.


Read Past Issues on JSTOR

JSTOR, the online academic archive, contains complete back issues of American Scientist from 1913 (known then as the Sigma Xi Quarterly) through 2005.

The table of contents for each issue is freely available to all users; those with institutional access can read each complete issue.

View the full collection here.


RSS Feed Subscription

Receive notification when new content is posted from the entire website, or choose from the customized feeds available.


Write for American Scientist

Review our submission guidelines.


Subscribe to American Scientist