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.

Related Articles


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 April 1, 2015 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 April 1, 2015).

Share This


More From ScienceDaily



More Plants & Animals News

Wednesday, April 1, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Lion Makes Surprise Comeback in Gabon

Lion Makes Surprise Comeback in Gabon

AFP (Apr. 1, 2015) The noble lion has made a comeback in southeast Gabon, after disappearing for years, according to US wildlife organisation Panthera, which recently took live video footage of a male. Duration: 00:32 Video provided by AFP
Powered by NewsLook.com
Liberia Sees Resurgence of Drug Trafficking as Ebola Wanes

Liberia Sees Resurgence of Drug Trafficking as Ebola Wanes

AFP (Apr. 1, 2015) The governments of Liberia and Sierra Leone have been busy fighting the menace created by the deadly Ebola virus, but illicit drug lords have taken advantage of the situation to advance the drug trade. Duration: 01:12 Video provided by AFP
Powered by NewsLook.com
Gorilla Falls Into Zoo Moat

Gorilla Falls Into Zoo Moat

Reuters - Light News Video Online (Mar. 31, 2015) A gorilla comes to the rescue of her sister who fell into a moat in Israel&apos;s Safari zoo. Rough cut (no reporter narration). Video provided by Reuters
Powered by NewsLook.com
California on Alert Over Surge in Sea Lion Strandings

California on Alert Over Surge in Sea Lion Strandings

AFP (Mar. 31, 2015) Since the start of the year, thousands of baby sea lions have washed up on beaches along the west coast of the United States. Marine animal care centers are working around the clock to save the stranded creatures. Duration: 02:06 Video provided by AFP
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:

Strange & Offbeat Stories


Plants & Animals

Earth & Climate

Fossils & Ruins

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