Navigation Links
What plant genes tell us about crop domestication
Date:7/7/2010

enotypes under simple genetic control could be domesticated more easily than those whose traits had a complex genetic basis.

The genetic data indicate that important domestication traits are under simple genetic control but also, as Gross and Olsen write, that there are "many ways to make a domesticated plant." For example, genetic analysis shows that barley, common beans and Asian rice were domesticated more than once, a remarkable finding because the archeological evidence on this question is inconclusive.

QTL maps have also revealed that the same traits are sometimes controlled by different constellations of genes. For example, different genes prevent shattering in the two domesticated lineages of barley.

Although QTL mapping has led to many insights about the domestication of plants, Gross and Olsen emphasize that genes cannot tell us everything. Trying to read the history of domestication out of the genomes of existing crop plants is like trying to read a book with many missing pages.

There's a simple reason for this. Living crops cannot provide information about any plant lineage that did not ultimately contribute to a modern crop. So the genetic record is silent about domestication experiments that ultimately failed or were abandoned. If these experiments left a record, they left it only in archaeobotanical remains which is what makes it difficult to reconcile that record with the genetic data.

Sticky rice, fragrant rice and other fun stuff

The second step in plant domestication is the fun one. Once a plant has become amenable to sowing and reaping, farmers set to work to improve it or diversify it.

One such improvement is sticky rice, a type of short-grained, famously glutinous Asian rice. Olsen, who has studied the origins of sticky rice, says that usually "about 20 percent of the starch in the rice is amylose and the rest is another starch called amylopectin. Amylose is an unbranched molecule
'/>"/>

Contact: Diana Lutz
dlutz@wustl.edu
314-935-5272
Washington University in St. Louis
Source:Eurekalert  

Page: 1 2 3 4 5

Related biology news :

1. Formula discovered for longer plant life
2. Commercial aquatic plants offer cost-effective method for treating wastewater
3. Structures of important plant viruses determined
4. Research about plant viruses could lead to new ways to improve crop yields
5. UC Riverside biochemists devise method for bypassing aluminum toxicity effects in plants
6. Reproducing early and often is the key to rapid evolution in plants
7. MSU scientists find new gene that helps plants beat the heat
8. Diversity of plant-eating fishes may be key to recovery of coral reefs
9. Researchers design artificial cells that could power medical implants
10. Plant-eating predator to fight superweed is not magic bullet
11. When under attack, plants can signal microbial friends for help
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
What plant genes tell us about crop domestication
(Date:7/21/2014)... and Dr. Mary Lou Applewhite Distinguished Professor in Department ... to an article in the scientific journal Nature ... into Primate Biology and Evolution," published on July 20. ... mobile elements that move by a sort of "copy ... important because it is the first "New World" monkey ...
(Date:7/21/2014)... La. Dr. Mark DeCoster, the James E. ... Louisiana Tech University, will present as an invited ... at the Biopolis Research and Development Center in ... faculty member in Louisiana Tech,s Institute for Micromanufacturing, ... 2D and 3D cell and tissue models." ...
(Date:7/21/2014)... see an innovation and think, "Of course! Why didn,t ... thoughts of our own invention, sparking ideas and building ... the International Space Station Program Science Office,s new 15-book ... have going on in orbit, their mental wheels may ... encourage investigators to propose new research and potentially make ...
Breaking Biology News(10 mins):LSU's Mark Batzer contributes to Nature Genetics article on marmoset genome 2Louisiana Tech University professor presents at International Bioprinting Congress 2International Space Station researcher guides aim to maximize science 2International Space Station researcher guides aim to maximize science 3International Space Station researcher guides aim to maximize science 4
... at the Southwest Foundation for Biomedical Research (SFBR) in ... levels of bad cholesterol to accumulate in the blood ... studied a strain of laboratory opossums developed at SFBR ... (LDL) cholesterol when fed a standard low-cholesterol diet, but ...
... 14, 2010: 5:00 p.m. U.S. Eastern Time) A new ... groups reveals an ominous finding: most of the world,s ... tradeare now clustered in just six percent of their ... scattered across Asia that are now the last hope ...
... published in the Sept. 15 edition of the Journal ... Edward H. Shortliffe, MD, PhD, points out that although ... role that information management and access play in healthcare ... informatics competency being developed in America,s future corps of ...
Cached Biology News:Scientists find gene for high cholesterol in blood 2Last strongholds for tigers identified in new study 2Last strongholds for tigers identified in new study 3Informatics = essential MD competency 2
(Date:7/21/2014)... a chain of carbon atoms can turn it from ... University scientists. , Stretching the material known as carbyne ... by just 3 percent can begin to change its ... mechanically activated nanoscale electronics and optics. , The finding ... appears in the American Chemical Society journal Nano ...
(Date:7/21/2014)... Sleep disturbances such as insomnia, ... with depression. According to a study published by ... quarters of depressed patients have insomnia symptoms, and ... depressed adults and 10% of older patients, with ... distress, have a major impact on quality of ...
(Date:7/18/2014)... , July 18, 2014  Neogen Corporation (Nasdaq: ... Snyder , Neogen,s chief operating officer and president, has ... will work as a consultant going forward on special ... Snyder has been in this position since September 2013. ... by James Herbert , who has been Neogen,s ...
(Date:7/18/2014)... Hungary & Cambridge, MA (PRWEB) July 18, 2014 ... , headquartered in Budapest with US offices in ... HLA™ - a combination Assay and Software product ... (NGS), for use on the Illumina® MiSeq sequencing ... through collaboration with The Children’s Hospital of Philadelphia ...
Breaking Biology Technology:Carbyne morphs when stretched 2Carbyne morphs when stretched 3Open Label Data on Enhanced Sleep Released by JayMac Pharmaceuticals, LLC 2Open Label Data on Enhanced Sleep Released by JayMac Pharmaceuticals, LLC 3Omixon Launches Holotype HLA for NGS-based HLA Genotyping 2Omixon Launches Holotype HLA for NGS-based HLA Genotyping 3
... large measure the ability to tune out negativity, author ... of southeastern Wisconsin technology professionals. , ,Kawasaki, managing partner ... "Art of the Start" and several other business books, ... of eInnovate. He poked some good-natured fun at politicians, ...
... may have an expo floor to rival any industry trade show, but ... a sale. , , The BIO Chicago show floor, the size ... globe. "I don't expect any of our end-user customers in the ... of Milwaukee-based Neurognostics said. "This is a probably a better ...
... A stem cell scientist from Harvard University dropped by Wisconsin's ... a hint of admiration, that it was abuzz with activity. ... Wisconsin exhibit than anywhere else I've been on the (exhibit) ... foot traffic at a trade show even one of ...
Cached Biology Technology:Beating back the bozos is an innovation must, says Kawasaki 2As BIO shows mass of competition, hunt for partners is on 2As BIO shows mass of competition, hunt for partners is on 3In competitive biotech world, Wisconsin can't afford to fall behind 2In competitive biotech world, Wisconsin can't afford to fall behind 3
Immunogen: Recombinant full length protein, corresponding to amino acids 1-435 of Human AP2M1. Storage: -20 C, Avoid Freeze/Thaw Cycles...
Carrier-Free Recombinant Human Flt-3/Flk-2 Ligand (Flt3/Flk2 Ligand, Flt3L, Flt3-L, Flk2L, Flk2-L) 100 ug...
Gap junction protein, beta 2, 26kDa (connexin 26) Antigen: Peptide...
IKKbeta/IKK-2 Polyclonal Antibody 100 ug affinity purified rabbit polyclonal antibody. Reacts with human. Tested in Western blotting....
Biology Products: