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

Anyone who has seen teosinte, the wild grass from which maize (corn) evolved, might be forgiven for assuming many genetic changes underlie the transformation of one plant to the other.

However, a method for exploring the genetics of domestication called Quantitative Trait Locus (QTL) mapping has revealed that only modest modifications are needed to convert a wild plant to a crop plant. Some major transitions in phenotype can even be achieved by a single genetic change.

The few artificial experiments in domestication that have been conducted have also shown that it is possible to achieve domesticate-like plants in fewer than 20 generations.

None of this pleases archaeobotanists, who try to piece together the history of plant domestication from scraps of ancient plant remains.

Their data are sparse and unimpressive a 10,000-year-old squash seed found in a cave in Oaxaca, Mexico, or four 12,000-year-old grains of rice recovered from a rock shelter in Hunan Province in China but they have their own irrefutable reality.

"There's been an argument in the recent archeological literature that genetics gives a false picture of domestication as a rapid, geographically localized process," comments Kenneth M. Olsen, PhD, assistant professor of biology in Arts & Sciences at Washington University. "They argue instead that domestication likely involved much triral and error in many different geographic regions over a long period of time."

In a review of the genetics of plant domestication published in the advance online edition of Trends in Plant Science, Olsen, who uses genetic approaches to study the domestication of rice, cassava and coconut, and Briana L. Gross, PhD, a postdoctoral research scholar in his lab, review the recent genetic data and argue that genetic evidence doesn't conflict with the archeological evidence that domestication was gradual, dispersed and tentative.

The Domestication Syn
'/>"/>

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:6/17/2015)... GERMANTOWN, Maryland , June 17, 2015 ...   Produktlinie mit DNA-Tests verbessert den Analyseprozess und ... QGEN ; Frankfurt Prime Standard: QIA) hat heute in ... Produktlinie Investigator ® für ... Die neuen Kits zur Erstellung genetischer Fingerabdrücke bieten eine ...
(Date:6/17/2015)... 17, 2015  Synaptics Inc. (NASDAQ: SYNA ... announced that Xiaomi, one of the world,s largest ... ClearPad ® family of capacitive touchscreen solutions ... (DDICs) for its latest smartphones, the Xiaomi Mi ... full in-cell display solutions and DDICs in discrete ...
(Date:6/16/2015)... 16, 2015 /CNW Telbec/ - handyem Inc. and ... the incorporation of handyem,s HPC-150 portable flow cytometer ... Mo-POD™. This unprecedented model of mobile laboratory platform ... the Pennsylvania Convention Center, ... th to 18 th 2015.  By ...
Breaking Biology News(10 mins):QIAGEN bringt in den USA neue Kits für die forensische DNA-Analyse auf den Markt 2QIAGEN bringt in den USA neue Kits für die forensische DNA-Analyse auf den Markt 3QIAGEN bringt in den USA neue Kits für die forensische DNA-Analyse auf den Markt 4QIAGEN bringt in den USA neue Kits für die forensische DNA-Analyse auf den Markt 5QIAGEN bringt in den USA neue Kits für die forensische DNA-Analyse auf den Markt 6Synaptics Touchscreen and Display Driver IC Solutions Power Xiaomi's Latest Flagship Smartphones 2Synaptics Touchscreen and Display Driver IC Solutions Power Xiaomi's Latest Flagship Smartphones 3handyem and FlowMetric Diagnostics announce their partnership in the development of Flow Cytometry- Based Solutions in diagnostic capabilities 2handyem and FlowMetric Diagnostics announce their partnership in the development of Flow Cytometry- Based Solutions in diagnostic capabilities 3
... An international team of scientists, including University of Colorado ... discovered a new disease related to an inability to ... can be devastating., "Some people with rare inherited conditions ... Tamim Shaikh, PhD, a geneticist and senior author of ...
... are the same. Although we all possess the same ... since genes provide the blueprint for all proteins, these ... But what impact does this diversity have? Bioinformatics researchers ... have investigated how protein function is affected by changes ...
... 5, 2013 We live in the most exciting ... Freud started talking about sex in public. ... introduced the fifth iteration of the psychiatric diagnostic manual, ... clinical minds in psychiatry to categorize the enormously complex ...
Cached Biology News:Peering into genetic defects, CU scientists discover a new metabolic disease 2Peering into genetic defects, CU scientists discover a new metabolic disease 3Wide range of differences, mostly unseen, among humans 2What is the brain telling us about the diagnoses of schizophrenia and bipolar disorder? 2
(Date:7/2/2015)... , July 2, 2015  Spherix Incorporated (Nasdaq: ... the fostering and monetization of intellectual property, today announced ... Spherix Incorporated v. Verizon Services Corp. et al. ... Court for the Eastern District of Virginia ... July 1, 2015 interpreting certain key claims in favor ...
(Date:7/1/2015)... ... 2015 , ... It is now possible to separate two common disorders: post-traumatic ... tomography (SPECT) according to researchers from Amen Clinics, UCLA, Thomas Jefferson University, and ... is believed to be the largest brain imaging study ever, will be published on ...
(Date:7/1/2015)... India , July 1, 2015  Strand Life ... generation sequencing technology to empower cancer care, today announced ... chief executive officer. In his expanded role as now ... strategy, business expansion and worldwide operations effective immediately.  Dr. ... chairman and CEO since its founding in 2000, will ...
(Date:7/1/2015)... ... July 01, 2015 , ... A newly launched business ... to lower the barriers to innovation in life sciences R&D. The Pistoia Alliance President’s ... cash prizes of US$15,000 and a period of expert mentorship from a senior industry ...
Breaking Biology Technology:Spherix Issues A Litigation Update 2Spherix Issues A Litigation Update 3Brain Scans Can Tell Post-Traumatic Stress Disorder and Traumatic Brain Injury Apart According to New Research by Amen Clinics 2Brain Scans Can Tell Post-Traumatic Stress Disorder and Traumatic Brain Injury Apart According to New Research by Amen Clinics 3Brain Scans Can Tell Post-Traumatic Stress Disorder and Traumatic Brain Injury Apart According to New Research by Amen Clinics 4Strand Life Sciences Names Scott A. Storrer CEO as Company Continues Global Expansion with Focus on Precision Medicine Product 2Strand Life Sciences Names Scott A. Storrer CEO as Company Continues Global Expansion with Focus on Precision Medicine Product 3Pistoia Alliance Launches Startup Challenge 2Pistoia Alliance Launches Startup Challenge 3
... Precision Therapeutics, Inc. will present pancreatic cancer data based ... Society of Clinical Oncology (ASCO) GI Symposium, January 20-22 in ... by the ASCO GI are titled, ... Cancer and Pattern of In Vitro Chemotherapy Response ...
... at Northwestern University have placed nanocrystals of rock salt ... electricity from heat-generating items such as vehicle exhaust systems, ... than scientists have seen in the past. The ... is expected to enable 14 percent of heat waste ...
... CITY, N.J., Jan. 18, 2011 Intrasphere Technologies ... and solutions firm that provides services to Life ... a Gold level member of Oracle PartnerNetwork (OPN) ... Safety Suite. As a result of this accomplishment, ...
Cached Biology Technology:Precision Therapeutics Announces Two Pancreatic Cancer Studies Emphasizing the Utility of ChemoFx® in Cancer Treatment Options 2Breakthrough in converting heat waste to electricity 2Intrasphere Technologies Achieves Oracle PartnerNetwork Specialization for Oracle Argus Safety Suite 2Intrasphere Technologies Achieves Oracle PartnerNetwork Specialization for Oracle Argus Safety Suite 3
ABgene® supplies a 94kDa ultra-pure recombinant thermostable DNA polymerase obtained by high level expression of the Taq DNA polymerase gene in E. coli....
... uses the Adept CE 4100 high pressure dual ... detector for added flexibility and utra low drift. ... to a photodiode array detection and provides superior ... required for method development and for monitoring to ...
... This CLS number is a new ... Cornings product number. If showing no ... old Sigma-Aldrich number (E6152) or contact ... Dim: H diam. 11.25 ...
... of samples may be carried out using this ... System control and data processing is provided ... The elegant, powerful and very easy to use ... and 2000., The supplied detector is the ground ...
Biology Products: