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 December 21, 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 December 21, 2014).

Share This


More From ScienceDaily



More Plants & Animals News

Sunday, December 21, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Researchers Test Colombian Village With High Alzheimer's Rates

Researchers Test Colombian Village With High Alzheimer's Rates

AFP (Dec. 19, 2014) In Yarumal, a village in N. Colombia, Alzheimer's has ravaged a disproportionately large number of families. A genetic "curse" that may pave the way for research on how to treat the disease that claims a new victim every four seconds. Duration: 02:42 Video provided by AFP
Powered by NewsLook.com
Monarch Butterflies Descend Upon Mexican Forest During Annual Migration

Monarch Butterflies Descend Upon Mexican Forest During Annual Migration

Reuters - Light News Video Online (Dec. 19, 2014) Millions of monarch butterflies begin to descend onto Mexico as part of their annual migration south. Rough Cut (no reporter narration) Video provided by Reuters
Powered by NewsLook.com
The Best Protein-Filled Foods to Energize You for the New Year

The Best Protein-Filled Foods to Energize You for the New Year

Buzz60 (Dec. 19, 2014) The new year is coming and nothing will energize you more for 2015 than protein-filled foods. Fitness and nutrition expert John Basedow (@JohnBasedow) gives his favorite high protein foods that will help you build muscle, lose fat and have endless energy. Video provided by Buzz60
Powered by NewsLook.com
Birds Might Be Better Meteorologists Than Us

Birds Might Be Better Meteorologists Than Us

Newsy (Dec. 19, 2014) A new study suggests a certain type of bird was able to sense a tornado outbreak that moved through the U.S. a day before it hit. 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:

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