Navigation Links
Western aspen trees commonly carry extra set of chromosomes
Date:10/31/2012

A large proportion of aspen in the western U.S. sport an extra set of chromosomes in their cells, a phenomenon termed triploidy, according to new research published Oct. 31 in the open access journal PLoS ONE by Karen Mock from Utah State University and colleagues at several other institutions. In some areas of southern Utah and Colorado, over 60% of aspen trees are triploid.

Though triploid trees are not uncommon, this genetic anomaly can cause altered physical traits including sterility or reduced fertility. Although a triploid aspen clone may reproduce with root suckers, the scientists say, it is unlikely to produce viable seed.

Mapping the rates of triploidy in aspen to latitude, glacial history and regional variation in climate, the researchers found that these rates were highest in unglaciated, drought-prone regions. Wolf, professor in USU's Department of Biology, notes triploid plants often have larger cells, which might affect how plants cope with different conditions. "It is possible triploid aspen can better absorb water than diploids and are therefore better suited to withstand dry conditions, but they may be especially vulnerable to severe drought," he says.

Iconic fall foliage of the north-western forests, aspen populations have been declining in recent years; their high mortality rates have been attributed to drought, insect pests and a mysterious syndrome termed "Sudden Aspen Decline" (SAD). The new research is based on data collected over more than eight years by the Forest Service, a NASA Biodiversity program, and several researchers and volunteers.

Lead author on the study Mock says, "Though our findings come from many years of study, they provide an important starting point as we go forward. What we're learning will help us understand both the past and the future of aspen in the West."


'/>"/>

Contact: Jyoti Madhusoodanan
jmadhusoodanan@plos.org
415-568-4545 x187
Public Library of Science
Source:Eurekalert  

Page: 1

Related biology news :

1. Northwestern scientists create chemical brain
2. Team discovers how western corn rootworm resists crop rotation
3. UCSB scientists compile first study of potential for tsunamis in northwestern California
4. NASA satellite sees several western US fires blazing
5. Grants add to Northwestern-Qatar partnership
6. Study finds Western diet detrimental to fetal hippocampal tissue transplants
7. Mesquite trees displacing Southwestern grasslands
8. Cracking the Neural Code: Third Annual Aspen Brain Forum
9. Do Australias giant fire-dependent trees belong in the rainforest?
10. Old deeds, witness trees offer glimpse of pre-settlement forest in West Virginia
11. Droughts are pushing trees to the limit
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Western aspen trees commonly carry extra set of chromosomes
(Date:7/11/2014)... that transplantation of mesenchymal stem cells can stimulate neurogenesis ... of Alzheimer,s disease (AD) and improve tissue and function ... are reported on the therapeutic effect of adipose-derived stem ... the effect on oxidative injury and neurogenesis in the ... team, School of Life Sciences, Tsinghua University, China transplanted ...
(Date:7/11/2014)... In addition to the hippocampus, the marginal division ... and memory. What is the impact degree of ... learning and memory function? Yan Yu and his ... China found, using immunofluorescence staining, that substance P ... hippocampus and striatal marginal division of normal rats. ...
(Date:7/11/2014)... under the normal circumstances, astrocytes participate in ... environment, and exhibit therapeutic and repairing effects ... studies have found that nerve cells differentiated ... have reduced viability, which produces influences on ... Kailuan General Hospital, Hebei United University, China ...
Breaking Biology News(10 mins):
... factor only just beginning to be appreciated by social ... Terje Tvedt, of the Universities of Oslo and Bergen, ... role in shaping societies throughout human history. Speaking at ... in October, Tvedt proposed that social scientists and historians ...
... vice president for technology development at NJIT, has been ... and Technology to assist faculty researchers with the most ... $50,000. The money, known as Gap grants, is ... idea and a commercial product. Sixteen grants ...
... Carolina at Chapel Hill researchers using brain imaging of ... that may mark the onset of autistic symptoms is ... in funding. , The Infant Brain Imaging Study ... awarded $10 million in 2007 by the National Institutes ...
Cached Biology News:Using water to understand human society, from the industrial revolution to global trade 2Using water to understand human society, from the industrial revolution to global trade 3Moving new technologies from the lab to the marketplace 2Moving new technologies from the lab to the marketplace 3UNC expands brain imaging study of infants at risk for autism 2
(Date:7/11/2014)... July 11, 2014 EPFL and ... the appointment of John P. Donoghue . The ... Geneva . The new Wyss ... in Geneva , has named as ... John P. Donoghue , founder of Brown University,s ...
(Date:7/10/2014)... Canada (PRWEB) July 10, 2014 ... present in very low abundance and are often ... challenging and time-consuming. , Join presenters Dr. Rowel ... and Dr. John Anders, Head of Quality at ... spectrometer-based approach that can speed detection and quantitation ...
(Date:7/10/2014)... Robert Harman, DVM, Founder and CEO of ... to announce the relaunch of his highly informative blog, now ... called “ What are Stem Cells ?” Dr. Harman’s ... foundation in the basics of stem cell therapy so that ... type of treatment when considering regenerative medicine. , A veterinarian ...
(Date:7/10/2014)... ST. PETERSBURG, Russia , July 10, 2014 /PRNewswire/ ... the Russian Federation Dmitry Medvedev , presented ... a biopharmaceutical company BIOCAD . The Company is ... the scope of MabNext project BIOCAD develops a number ... of cancer and autoimmune diseases. The ceremony took place ...
Breaking Biology Technology:John P. Donoghue is Taking the Lead at the Wyss Center and is Appointed Professor at EPFL and University of Geneva 2John P. Donoghue is Taking the Lead at the Wyss Center and is Appointed Professor at EPFL and University of Geneva 3Novel Ms Techniques Speed Detection of Biopharmaceutical Product and Process Impurities, New Webinar Hosted by Xtalks 2Robert Harman, DVM Talks About What Stem Cells are in His Latest Blog Series for Vet-Stem, Inc. 2Robert Harman, DVM Talks About What Stem Cells are in His Latest Blog Series for Vet-Stem, Inc. 3Dmitry Medvedev Presented BIOCAD the First National "Industry" Award 2
... a significant percentage of Americans, the answer is no, ... the science of the very small. , Addressing scientists ... of the American Association for the Advancement of Science, ... sciences communication, presented new survey results that show religion ...
... that Significantly Raises HDL "Good" Cholesterol and Lowers ... ... ABBOTT PARK, Ill., Feb. 15 Today, Abbott,received U.S. Food and ... widely prescribed cholesterol,therapies, Niaspan(R) (Abbott,s proprietary niacin extended-release) and,simvastatin. SIMCOR is ...
... Pharma (Oxford, UK), a,Vaccinex collaboration partner, has announced ... discovered by Vaccinex, to,GlaxoSmithKline., According to the ... an up-front,license fee, development milestones, and royalties on ... develop and commercialize,OP-R003 for the treatment of rheumatoid ...
Cached Biology Technology:Religion colors Americans' views of nanotechnology 2Abbott Receives FDA Approval for SIMCOR(R) (Niaspan(R) / simvastatin), a Novel Combination Medicine for Comprehensive Cholesterol Management 2Abbott Receives FDA Approval for SIMCOR(R) (Niaspan(R) / simvastatin), a Novel Combination Medicine for Comprehensive Cholesterol Management 3Abbott Receives FDA Approval for SIMCOR(R) (Niaspan(R) / simvastatin), a Novel Combination Medicine for Comprehensive Cholesterol Management 4Abbott Receives FDA Approval for SIMCOR(R) (Niaspan(R) / simvastatin), a Novel Combination Medicine for Comprehensive Cholesterol Management 5Abbott Receives FDA Approval for SIMCOR(R) (Niaspan(R) / simvastatin), a Novel Combination Medicine for Comprehensive Cholesterol Management 6Vaccinex Antibody Licensed to GlaxoSmithKline 2
Human HAPLN1 MAb (Clone 316119) Protein Family: Hyaluronan (HA) & HA Binding Proteins, Proteoglycan Regulators...
Reacts with MBP from human, bovine and rat, epitope 129-138. Reacts weakly with rabbit. Does not react with guinea pig....
SEQUENASE PCR PRODUCT PRE-SEQU, 1 EA. Category: SEQUENASE....
Cyno macaque plasma and serum - various quantities available...
Biology Products: