Navigation Links
Genome inversion gives plant a new lifestyle
Date:9/28/2010

DURHAM, N.C. The yellow monkeyflower, an unassuming little plant that lives as both a perennial on the foggy coasts of the Pacific Northwest and a dry-land annual hundreds of miles inland, harbors a significant clue about evolution.

Duke graduate student and native northern Californian David Lowry had become interested in how a single species could live such different lifestyles. He set out to find a gene or genes that would account for the monkeyflower (Mimulus guttatus) being a lush, moisture-loving, salt-tolerant perennial on the coast, but a shorter, faster-flowering, drought-tolerant annual inland.

What he found instead was that a large chunk of the plant's genome 2.2 million letters of DNA and 350 genes are working differently in each ecotype of the plant. The difference is called a genetic inversion, a long piece of DNA that has been clipped out of a chromosome at both ends and then reinserted essentially upside down.

"When you look at one plant species across a broad landscape with lots of different habitat conditions, you find differences in the genes from one place to the next," Lowry said. "The cause of these differences has been a source of contention among evolutionary biologists for decades as they've tried to figure out what mechanisms drive the origin of species."

A single species with a broad range of habitats like the monkeyflower can be expected to have a suite of genes available to help it adapt to the various conditions it would encounter within its range. But depending on where an individual plant finds itself, some of those genes aren't being used.

In the case of the monkeyflower, Lowry found that each ecotype has a large suite of adaptive genes carried within the inversion. The inland plants set about producing flowers and getting their reproduction done in the spring, before hot, dry weather arrives. The coastal plants grow a lot more foliage and flower much later without the threat
'/>"/>

Contact: Karl Leif Bates
karl.bates@duke.edu
919-681-8054
Duke University
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. NC State researchers get to root of parasite genome
2. Worm genome offers clues to evolution of parasitism
3. Complete Genomics launches, becomes worlds first large-scale human genome sequencing company
4. Diatom genome helps explain success in trapping excess carbon in oceans
5. Washington University scientists first to sequence genome of cancer patient
6. Research consortium to sequence turkey genome
7. DOE Joint Genome Institute completes soybean genome
8. Breast cancer genome shows evolution, instability of cancer
9. In lung cancer, silencing one crucial gene disrupts normal functioning of genome
10. Gene switch sites found mainly on shores, not just islands of the human genome
11. Genome Medicine: Bridging the gap between research and clinical practice
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/18/2014)... have developed a unique method to use microbes buried ... areas. , The first microbe-powered, self-sustaining wastewater treatment ... to clean up waste from large farming operations and ... Professor Haluk Beyenal and graduate student Timothy Ewing in ... system in the online edition of Journal of ...
(Date:9/18/2014)... icy moon of Uranus, is one of the most ... Despite its relatively small size, Miranda appears to have ... the formation of at least three remarkable and unique ... These coronae are visible in Miranda,s southern hemisphere, and ... corona, the largest, has ridges and troughs with up ...
(Date:9/18/2014)... researchers from McGill University and the Quebec government ... ,microbeads, Canadian Journal of Fisheries and Aquatic ... cosmetics, household cleansers, or industrial cleansers, to which ... their small size and buoyancy, they may readily ... a global contaminant in the world,s oceans, but ...
Breaking Biology News(10 mins):Researchers develop unique waste cleanup for rural areas 2Miranda: An icy moon deformed by tidal heating 2Miranda: An icy moon deformed by tidal heating 3Miranda: An icy moon deformed by tidal heating 4Miranda: An icy moon deformed by tidal heating 5Miranda: An icy moon deformed by tidal heating 6Miranda: An icy moon deformed by tidal heating 7Microplastic pollution discovered in St. Lawrence River sediments 2
... 16, 2008) The overall condition of the nation,s coastal ... environmental assessment. The National Coastal Condition Report III (NCCRIII) ... of U.S. coastal and Great Lakes waters. ... Protection Agency (EPA); the National Oceanic and Atmospheric Administration ...
... Plants, genetically modified to ease the breaking down of their ... greener way of making ethanol, according to researchers who add ... food for livestock. Lignin, a major component of ... plants with the strength to withstand strong gusts of wind ...
... NEW YORK, Dec. 22, 2008 NYU Langone Medical Center ... La Jolla, Calif., have discovered an unexpected cause for the ... of the central nervous system, according to a study published ... new way of thinking about how the human immune system ...
Cached Biology News:Modified plants may yield more biofuel 2Peering inside the skull of a mouse to solve meningitis mystery 2Peering inside the skull of a mouse to solve meningitis mystery 3
(Date:9/18/2014)... September 18, 2014 On Tuesday, Secretary ... Sen. Jim Risch for National Lab Day on the ... across the national laboratory system. Durbin and Risch also ... to increase awareness of the reach of the national ... discoveries to address some of our nation's most pressing ...
(Date:9/18/2014)... Research and Markets has announced the addition ... In-situ hybridization, Immunohistochemistry) Market - Trends & Forecasts to ... The global companion diagnostics market is expected to grow ... Factors such as rising need for personalized medicine in ... pharmaceutical industry, support from regulatory authorities, and emerging technologies ...
(Date:9/18/2014)... , Sept. 18, 2014  Neogen Corporation (Nasdaq: ... into a strategic agreement with Merck Animal Health to ... The Igenity Dairy Heifer Program consists of ... on the genetic potential of replacement dairy heifers. The ... is born, and is an excellent tool in the ...
(Date:9/18/2014)... (PRWEB) September 18, 2014 OMICS ... the globe to participate in the ‘Open Access ... articles to OMICS Group Pharma Journals ... one of the fastest emerging Sciences, accelerating with ... healthcare services across the globe. The industry is ...
Breaking Biology Technology:Lab Day Highlight Labs' Contribution to U.S. Competitiveness and Innovation 2Lab Day Highlight Labs' Contribution to U.S. Competitiveness and Innovation 3Global Companion Diagnostics (Polymerase Chain Reaction, In-situ hybridization, Immunohistochemistry) Market - Trends & Forecasts to 2019 2Global Companion Diagnostics (Polymerase Chain Reaction, In-situ hybridization, Immunohistochemistry) Market - Trends & Forecasts to 2019 3Merck Animal Health to market Neogen's dairy genomic program 2Pharma and Omics Journals to Address Global Challenges during Open Access Week 2Pharma and Omics Journals to Address Global Challenges during Open Access Week 3
... A study that examines a new type of ... function and how repeated use could wear them ... this material performs better than silicon alone. With ... lithium battery electrodes, silicon-carbon nanocomposite electrodes could lead ...
... extensive national search, Fitzsimons Redevelopment Authority (FRA) has named ... Officer, beginning in late May. The announcement is made ... of Directors, who said: "Steve, a seasoned leader in ... Clinic in Rochester, Minnesota." The appointment of ...
... March 14, 2012   Chemring Detection Systems ("CDS") ... $9M contract award to supply biological detection systems to ... by Marubeni Aerospace Corporation. The systems will be installed in ... Vehicle. The system is a variant ...
Cached Biology Technology:Silicon-carbon electrodes snap, swell, don't pop 2Silicon-carbon electrodes snap, swell, don't pop 3Silicon-carbon electrodes snap, swell, don't pop 4Fitzsimons Redevelopment Authority Names New President & CEO 2Chemring Detection Systems Awarded $9M for Biological Detection Systems 2
... Red System consists of concentrated X/R ... X/R Red Buffer. The X/R Red ... produce red staining that may be ... Buffer, 100 mL , Chromogen, 2.0 ...
... Chromogen System consists of FAST ... FAST RED reacts in the ... produce red staining with minimal ... The FAST RED tablets provides ...
Mouse Cell Line Slides...
Human Cell Line Slides...
Biology Products: