Jump to content
Ornithology Exchange

What makes two species different?


Cara J
 Share

Recommended Posts

Scientists have long believed that the difference between two species came down to reproductive incompatibility as a result of adapting to different environments. But researchers recently found that may not be the case — it’s actually in the genes. A research team found that “selfish” genes, or meiotic drive elements, determine whether two species converge or diverge. In a new study using two different species of fruit flies, the researchers show that before the rest of the genetic chromosome develops, sex chromosomes from two species already evolve to be incompatible with one another. “Genes from one species simply can’t talk to genes from another species,” said Daven Presgraves, a dean’s professor of biology at the University of Rochester. But some species are “leaky,” researchers say, meaning a selfish gene can cross over to another species and still be compatible. Read more at earth.com or check out the study in eLife.

View the full article

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

×
×
  • Create New...