Navigation Links
Making new species without sex
Date:6/11/2014

l gene transfer - between the grafted plants.

"In our previous work we were able to prove that, contrary to the generally accepted dogma, there is horizontal gene transfer of chloroplast genes at the contact zone between grafted plants. Now we wanted to investigate if there is a transfer of genetic information between the nuclei as well" Ralph Bock says while explaining the recent study.

The researchers introduced resistance genes against two different antibiotics into nuclear genomes of the tobacco species Nicotiana tabacum and Nicotiana glauca, which usually cannot be crossed. Afterwards, Nicotiana glauca was grafted onto Nicotiana tabacum or the other way round. After fusion had occurred, the scientists excised tissue at the contact zone and cultivated it on a growth medium containing both antibiotics, so that only cells containing both resistance genes and thus, DNA from both species, should survive. Surprisingly, the scientists succeeded in growing up numerous doubly resistant plantlets.

To determine if the acquired double resistance is due to the transfer of single genes or the transfer of the entire genetic material, the researchers counted the chromosomes in the nuclei of the resistant plants. If complete genomes were transferred, the new plants would contain the sum of the chromosome numbers of the two species. "Indeed, we found 72 chromosomes in the resistant plants", Ralph Bock explains, "72 is the sum of the 24 N. glauca chromosomes and the 48 N. tabacum chromosomes." Thus, plantlets generated from the graft junction contained the genetic information of both species. "We managed to produce allopolyploid plants without sexual reproduction", Sandra Stegemann, joint first author of the study, is pleased to say.

When the scientists grew their new plants in the greenhouse, it became obvious that they combined characteristics of both progenitor species. But there was one striking
'/>"/>

Contact: Dr. Ralph Bock
rbock@mpimp-golm.mpg.de
49-331-567-8700
Max-Planck-Gesellschaft
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Making memories: How 1 protein does it
2. Killer silk: Making silk fibers that kill anthrax and other microbes in minutes
3. Chemical engineers at UMass Amherst find high-yield method of making xylene from biomass
4. Copper making salmon prone to predators
5. Making healthy food affordable and appealing for low-income populations
6. Winemaking goes high-tech at the University of British Columbia
7. For gay couples, condom decision-making and condom use varies by race
8. Making sense out of the biological matrix of bipolar disorder
9. Making memories: Drexel researchers explore the anatomy of recollection
10. Making chocolate an affordable luxury
11. Are bacteria making you hungry?
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Making new species without sex
(Date:9/18/2014)... Colo., USA A new GSA Bulletin ... the lower Rio Puerco and Chaco Wash in northern ... rings from salt cedar and willow, investigators were able ... or greater. They then combined this data with aerial ... the history of these arroyos. , Arroyos are deep, ...
(Date:9/18/2014)... ANTONIO, September 18, 2014 New research into the ... causes a severe hemorrhagic disease in humans similar to ... essential for CCHFV infection. This discovery has the potential ... the pathogen. , The research, reported in ... Pathogens and conducted by scientists at the Texas ...
(Date:9/18/2014)... the International Space Station ever starts a "frequent flyers" ... status. Recently the orbiting laboratory has hosted increasing numbers ... returned from the space station in April, and another ... third experiment is planned to launch in December. , ... around the world-- and in space. Model organisms can ...
Breaking Biology News(10 mins):Tree rings and arroyos 2Tree rings and arroyos 3Tree rings and arroyos 4Tree rings and arroyos 5Tree rings and arroyos 6Tree rings and arroyos 7Research milestone in CCHF virus could help identify new treatments 2Buzzing with activity: Fruit flies orbit Earth for science 2Buzzing with activity: Fruit flies orbit Earth for science 3Buzzing with activity: Fruit flies orbit Earth for science 4
... has discovered that forest fragmentation poses an even greater ... , Their findings, to be published next week (27 ... National Academy of Sciences USA, summarizes key findings from ... fragmentation. , The Amazon contains the ...
... loses a chunk of its tail fin, it'll grow back ... can replace surprisingly complex body parts. A tail fin, for ... very intricate structure. It is the fish version of an ... re-grow missing tails and other appendages has fascinated veterinary and ...
... immune-boosting substance called an adjuvant, low doses of ... influenza (H9N2) provoked a strong antibody response in ... Institute of Allergy and Infectious Diseases (NIAID), part ... clinical trial of 96 adults was conducted at ...
Cached Biology News:Fragmentation rapidly erodes Amazonian biodiversity 2How does a zebrafish grow a new tail? 2How does a zebrafish grow a new tail? 3H9N2 avian flu vaccine paired with adjuvant provokes strong human immune response at low doses 2
(Date:9/18/2014)... -- DeepResearchReports.com adds "2014 Deep Research Report on ... Deep Research Report on Global and China Sodium ... Photo - http://photos.prnewswire.com/prnh/20140918/147058 ... China Acetic Acid Industry" is a professional and ... and Global Acetic Acid Market. The report ...
(Date:9/18/2014)... Ireland , September 18, 2014 ... and Markets ( http://www.researchandmarkets.com/research/czvg3s/biocompatible ) has ... "Biocompatible Materials - Global Strategic Business ... ,     (Logo: http://photos.prnewswire.com/prnh/20130307/600769) ,This report analyzes ... in US$ Million by the following ...
(Date:9/18/2014)... Sept. 18, 2014 Research and Markets ... and Chinese Stem Cell Industry Report, 2014-2017" report ... undifferentiated biological cells that can differentiate into specialized cells ... cells. Stem cell therapy can be applied to treatment ... disease), nervous system diseases, damage or lesion of liver, ...
(Date:9/18/2014)... , Sept. 18, 2014 Research ... "Global Companion Diagnostics (Polymerase Chain Reaction, In-situ hybridization, ... report to their offering. The global ... CAGR of 22.7% from 2014 to 2019. Factors such ... growing adoption of companion diagnostics by the pharmaceutical industry, ...
Breaking Biology Technology:Acetic Acid Market & Sodium Stannate Industry (China, Global) Research Report 2Acetic Acid Market & Sodium Stannate Industry (China, Global) Research Report 3Acetic Acid Market & Sodium Stannate Industry (China, Global) Research Report 4Biocompatible Materials - Global Strategic Business Report 2014 2Biocompatible Materials - Global Strategic Business Report 2014 3Global and Chinese Stem Cell Industry Report, 2014-2017 2Global and Chinese Stem Cell Industry Report, 2014-2017 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 3
... LAIYANG, China, Sept. 27 /PRNewswire-Asia-FirstCall/ -- ... ... ... ,; var first_result; // Results are keyed by longUrl, so we need to grab the first ...
... the specialist in genome customization and subsidiary of Cellectis ... its e-store, with approximately one hundred ready-to-use products available ... website. Launched in 2008, Cellectis bioresearch develops ... which offer a simple, effective means of using Cellectis ...
... Md., Sept. 24 Popular morning talk show LIVE! ... the show,s High Heel-a-thon, Wednesday morning in New York,s Central ... the Foundation for the National Institutes of Health (FNIH) in ... campaign for women,s heart health education and research. ...
Cached Biology Technology:Jiangbo Pharmaceuticals Announces Conference Call to Discuss Results for Fourth Quarter Fiscal 2010 2Jiangbo Pharmaceuticals Announces Conference Call to Discuss Results for Fourth Quarter Fiscal 2010 3Jiangbo Pharmaceuticals Announces Conference Call to Discuss Results for Fourth Quarter Fiscal 2010 4Jiangbo Pharmaceuticals Announces Conference Call to Discuss Results for Fourth Quarter Fiscal 2010 5Jiangbo Pharmaceuticals Announces Conference Call to Discuss Results for Fourth Quarter Fiscal 2010 6Jiangbo Pharmaceuticals Announces Conference Call to Discuss Results for Fourth Quarter Fiscal 2010 7Cellectis Bioresearch Announces Availability of Research Kits Through New Online E-Store 2Cellectis Bioresearch Announces Availability of Research Kits Through New Online E-Store 3LIVE! With Regis and Kelly's 2010 'High Heel-A-Thon' Raises $63,000 for the Foundation for NIH 2LIVE! With Regis and Kelly's 2010 'High Heel-A-Thon' Raises $63,000 for the Foundation for NIH 3
... siSolutions siRNA Custom Synthesis Service ... duplex RNA to knockdown any ... (19 RNA base pairs with ... 27-mers, or other lengths of ...
EDG-1 Western blot control Source: Cell Lysate Application: Western Blotting Control...
Hybridization cassette for one slide...
Request Info...
Biology Products: