Featured Research

from universities, journals, and other organizations

Number of duplicated genes, adaptation appear to be linked

Date:
April 15, 2014
Source:
Molecular Biology and Evolution (Oxford University Press)
Summary:
Liken it to a case of where two genes are better than one. Scientists have found a class of genes, called small-scale duplication genes, or SSDs, that are important for adapting to novel environments and surviving environmental changes.

Liken it to a case of where two genes are better than one. Scientists have found a class of genes, called small-scale duplication genes, or SSDs, that are important for adapting to novel environments and surviving environmental changes.

Published in the advanced online edition of Molecular Biology and Evolution, authors Takashi Makino, Masakado Kawata, et al., were the first to examine more than 30 fully sequenced vertebrate genomes to look at SSDs as genetic signposts that correlated with habitat variability. SSDs have been generated continually during evolution, and are not the result of an ancient gene duplication, where mammals experienced a whole genome duplication twice in the very early history of vertebrate evolution, hundreds of Mya. Sometimes the duplicate genes are lost, but in other instances, new functions occur and are thought to be a major driver of evolution through adaptive innovation.

The research team found, in general, the higher the number of SSD genes found within a species, the better they were able to adapt to a habitat. By contrast, they speculate that species that lose SSD genes might not be able to generate enough variation to adapt. These findings suggest a new way for scientists to use SSD's as an index to project species survival, and whether a giving species may be more susceptible to becoming endangered or better able to fend off environmental changes.


Story Source:

The above story is based on materials provided by Molecular Biology and Evolution (Oxford University Press). Note: Materials may be edited for content and length.


Journal Reference:

  1. S. C. Tamate, M. Kawata, T. Makino. Contribution of non-ohnologous duplicated genes to high habitat variability in mammals. Molecular Biology and Evolution, 2014; DOI: 10.1093/molbev/msu128

Cite This Page:

Molecular Biology and Evolution (Oxford University Press). "Number of duplicated genes, adaptation appear to be linked." ScienceDaily. ScienceDaily, 15 April 2014. <www.sciencedaily.com/releases/2014/04/140415181330.htm>.
Molecular Biology and Evolution (Oxford University Press). (2014, April 15). Number of duplicated genes, adaptation appear to be linked. ScienceDaily. Retrieved September 2, 2014 from www.sciencedaily.com/releases/2014/04/140415181330.htm
Molecular Biology and Evolution (Oxford University Press). "Number of duplicated genes, adaptation appear to be linked." ScienceDaily. www.sciencedaily.com/releases/2014/04/140415181330.htm (accessed September 2, 2014).

Share This




More Plants & Animals News

Tuesday, September 2, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

We've Got Mites Living In Our Faces And So Do You

We've Got Mites Living In Our Faces And So Do You

Newsy (Aug. 30, 2014) A new study suggests 100 percent of adult humans (those over 18 years of age) have Demodex mites living in their faces. Video provided by Newsy
Powered by NewsLook.com
Washington Wildlife Center Goes Nuts Over Baby Squirrels

Washington Wildlife Center Goes Nuts Over Baby Squirrels

Reuters - US Online Video (Aug. 30, 2014) An animal rescue in Washington state receives an influx of orphaned squirrels, keeping workers busy as they nurse them back to health. Rough Cut (no reporter narration). Video provided by Reuters
Powered by NewsLook.com
Experimental Ebola Drug ZMapp Cures Lab Monkeys Of Disease

Experimental Ebola Drug ZMapp Cures Lab Monkeys Of Disease

Newsy (Aug. 29, 2014) In a new study, a promising experimental treatment for Ebola managed to cure a group of infected macaque monkeys. Video provided by Newsy
Powered by NewsLook.com
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

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