Featured Research

from universities, journals, and other organizations

Shared Gene Switch For All Plants Found

Date:
April 5, 2004
Source:
University Of California - Davis
Summary:
A gene-switching mechanism dating back 400 million years to the very first plants that made it onto land has been found by plant biologists at UC Davis.

A gene-switching mechanism dating back 400 million years to the very first plants that made it onto land has been found by plant biologists at UC Davis. A family of genes required for stem and leaf development in flowering plants is controlled in the same way in everything from mosses to a Douglas fir, according to postdoctoral researcher Sandra Floyd and John Bowman, professor of plant biology at UC Davis.

The mechanism depends on microRNAs, short pieces of RNA that switch genes off by interfering with messenger RNAs that are produced when genes are read.

Floyd and Bowman looked at a family of genes found in all major groups of land plants called class III HD-Zip genes. They found that these genes are controlled by microRNAs and that the microRNA binding region is almost identical in moss, liverworts, club moss, ferns, Douglas fir, Mexican yew and Arabidopsis, a flowering plant often used in laboratory research.

Not only are the amino acid sequences of the proteins highly conserved, but also the nucleotide sequence of the microRNA binding site in the mRNA has been conserved for 400 million years, Bowman said.

This is the first demonstration of gene regulation by a microRNA in non-flowering plants such as mosses and ferns. A similarly ancient system of regulation by microRNAs has recently been found in animals, Floyd said.

The research is published in the April 1 issue of Nature.


Story Source:

The above story is based on materials provided by University Of California - Davis. Note: Materials may be edited for content and length.


Cite This Page:

University Of California - Davis. "Shared Gene Switch For All Plants Found." ScienceDaily. ScienceDaily, 5 April 2004. <www.sciencedaily.com/releases/2004/04/040405091607.htm>.
University Of California - Davis. (2004, April 5). Shared Gene Switch For All Plants Found. ScienceDaily. Retrieved April 24, 2014 from www.sciencedaily.com/releases/2004/04/040405091607.htm
University Of California - Davis. "Shared Gene Switch For All Plants Found." ScienceDaily. www.sciencedaily.com/releases/2004/04/040405091607.htm (accessed April 24, 2014).

Share This



More Plants & Animals News

Thursday, April 24, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Monkeys Are Better At Math Than We Thought, Study Shows

Monkeys Are Better At Math Than We Thought, Study Shows

Newsy (Apr. 23, 2014) A Harvard University study suggests monkeys can use symbols to perform basic math calculations. Video provided by Newsy
Powered by NewsLook.com
Raw: Leopard Bites Man in India

Raw: Leopard Bites Man in India

AP (Apr. 22, 2014) A leopard caused panic in the city of Chandrapur on Monday when it sprung from the roof of a house and charged at rescue workers. (April 22) Video provided by AP
Powered by NewsLook.com
Iowa College Finds Beauty in Bulldogs

Iowa College Finds Beauty in Bulldogs

AP (Apr. 22, 2014) Drake University hosts 35th annual Beautiful Bulldog Contest. (April 21) Video provided by AP
Powered by NewsLook.com
805-Pound Shark Caught Off The Coast Of Florida

805-Pound Shark Caught Off The Coast Of Florida

Newsy (Apr. 22, 2014) One Florida fisherman caught a 805-pound shark off the coast of Florida earlier this month. 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