Featured Research

from universities, journals, and other organizations

Missing hybrid incompatibility gene may help unlock Darwin's 'mystery of mysteries'

Date:
March 25, 2014
Source:
Genetics Society of America
Summary:
To unlock the 'mystery of mysteries,' seven scientists at four institutions have collaborated to uncover the missing gene responsible for the best-studied case of hybrid incompatibility, the cross between the fruit flies Drosophila melanogaster and D. simulans.

Hybrid incompatibility -- the failure of two closely related species to produce offspring capable of surviving and reproducing -- has puzzled scientists from Charles Darwin, Thomas Hunt Morgan and Hermann Joseph Muller to today's geneticists and evolutionary biologists.

For Darwin, understanding the genetics of hybrid incompatibility was the key to the "mystery of mysteries": speciation, the evolutionary process by which new biological species arise.

To unlock the "mystery of mysteries," a group of seven scientists at four institutions have been trying to uncover the genes responsible for the best-studied case of hybrid incompatibility, the cross between the fruit flies Drosophila melanogaster and D. simulans. Previous studies by Dan Barbash, Ph.D., and colleagues at Cornell University implicated two genes, Hybrid male rescue (Hmr) and Lethal hybrid rescue (Lhr), but these two genes are not sufficient to cause hybrid inviability.

At the GSA Drosophila Research Conference, Nitin Phadnis, Ph.D., of the University of Utah and his collaborators will describe the new genomics-based approach that enabled them to identify the missing hybrid incompatibility gene in the D. simulans genome. They are now studying the functions of Hmr, Lhr and the missing gene to determine the biological pathways that are disrupted in hybrid offspring.


Story Source:

The above story is based on materials provided by Genetics Society of America. Note: Materials may be edited for content and length.


Cite This Page:

Genetics Society of America. "Missing hybrid incompatibility gene may help unlock Darwin's 'mystery of mysteries'." ScienceDaily. ScienceDaily, 25 March 2014. <www.sciencedaily.com/releases/2014/03/140325100250.htm>.
Genetics Society of America. (2014, March 25). Missing hybrid incompatibility gene may help unlock Darwin's 'mystery of mysteries'. ScienceDaily. Retrieved August 30, 2014 from www.sciencedaily.com/releases/2014/03/140325100250.htm
Genetics Society of America. "Missing hybrid incompatibility gene may help unlock Darwin's 'mystery of mysteries'." ScienceDaily. www.sciencedaily.com/releases/2014/03/140325100250.htm (accessed August 30, 2014).

Share This




More Plants & Animals News

Saturday, August 30, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Killer Amoeba Found in Louisiana Water System

Killer Amoeba Found in Louisiana Water System

AP (Aug. 28, 2014) State health officials say testing has confirmed the presence of a killer amoeba in a water system serving three St. John the Baptist Parish towns. (Aug. 28) Video provided by AP
Powered by NewsLook.com
Raw: Australian Sheep Gets Long Overdue Haircut

Raw: Australian Sheep Gets Long Overdue Haircut

AP (Aug. 28, 2014) Hoping to break the record for world's wooliest, Shaun the sheep came up 10 pounds shy with his fleece weighing over 50 pounds after being shorn for the first time in years. (Aug. 28) Video provided by AP
Powered by NewsLook.com
Minds Blown: Scientists Develop Fish That Walk On Land

Minds Blown: Scientists Develop Fish That Walk On Land

Newsy (Aug. 28, 2014) Canadian scientists looking into the very first land animals took a fish out of water and forced it to walk. Video provided by Newsy
Powered by NewsLook.com
Huge Ancient Wine Cellar Found In Israel

Huge Ancient Wine Cellar Found In Israel

Newsy (Aug. 28, 2014) An international team uncovered a large ancient wine celler that likely belonged to a Cannonite ruler. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins