Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

An efficient and simple method for varietal identification of the cherry tree

10.10.2003


Professor Ana Wünsch Blanco has presented her PhD, at the Public University of Navarre, on the application of molecular technologies in the identification and enhancement of the cherry fruit tree.



The application of molecular technologies in the identification and enhancement of the cherry tree is not something new. In fact, the varietal identification of fruit species has been accompanied, in the past few years, by the appearance of DNA markers. This has enabled an investigation of the genome of each variety, independently of the state of development and the phenological state of the tree.

Other research has used these techniques for the identification of peach trees. The significance of the study in the cherry tree arises from the fact that this is one of the economically important stone-fruit species and, moreover, Spain is one of the most important world producers of this fruit. However, this importance is not reflected in the exhaustive studies on the identification of genotypes of the different varieties of the species.


In this paper, the researcher develops an efficient method for the identification of cherry varieties based on microsatellite-type molecular markers.

More than 100 varieties of cherry

Once the method is designed it is used to identify the collection of cherry tree varieties of the Zaragoza Food Research Service (SIA)where Ana Wunsch is currently working. Moreover, the identification of 28 genotypes of the Extremadura Regional Government collection of cherry tree patterns in Barrado (Cáceres) and another 17 genotypes from the Zaragoza SIA collection. The results have been very good given that current methods for the varietal identification of the cherry tree have been accelerated and optimised.

The PhD also includes a study of the pollen-pistil incompatibility feature in the cherry tree. According to this, the varieties of auto-incompatible cherry trees require the presence of pollinating trees, pollen donors compatible for production and, therefore, this compatibility feature and the acquisition of auto-compatible varieties is an important aim for improvement in this species.

A system has been established for the identification of incompatibility groups in this species and for the identification of a auto-compatible mutant which may be used in species enhancement programmes. This has made easier and has improved the establishment of protocols for the identification and early selection of auto-compatibility and its subsequent transference to the production sector.

Genetic similitude by geographic origin

This research has enabled the establishment of profiles of genotypes of the various varieties and patterns of the three above-mentioned collections and the study of the genetic similitude between them. Thus, it has been observed that the oldest varieties of cherry tree used as parent lines in the improvement programmes are grouped together for genetic similitude into two groups which correspond to their geographic origin: varieties originating in southern Europe and varieties originating in Central Europe and North America.

These results concur with the way in which varieties have been selected at a local level and with the movement of vegetable material of this species, given that it was mainly the Central European varieties that were taken to North America.

Moreover, with respect to the traditional varieties from the Jerte Valley in Extremadura, researchers have observed that are more genetically similar to each other than other varieties introduced at a later date, indicating that a group of local, autochthonous varieties exists which can be distinguished from the rest of the cultivated varieties which have been selected empirically by farmers in the area over the centuries. Knowledge and identification of this germoplasm will be of use for its future conservation.

Contact :
Iñaki Casado Redin
Nafarroako Unibertsitate Publikoa
inaki.casado@unavarra.es
(+34) 948 16 97 82

Iñaki Casado Redin | Basque research
Further information:
http://www.basqueresearch.com
http://www.unavarra.es

More articles from Life Sciences:

nachricht Cancer diagnosis: no more needles?
25.05.2018 | Christian-Albrechts-Universität zu Kiel

nachricht Less is more? Gene switch for healthy aging found
25.05.2018 | Leibniz-Institut für Alternsforschung - Fritz-Lipmann-Institut e.V. (FLI)

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Powerful IT security for the car of the future – research alliance develops new approaches

The more electronics steer, accelerate and brake cars, the more important it is to protect them against cyber-attacks. That is why 15 partners from industry and academia will work together over the next three years on new approaches to IT security in self-driving cars. The joint project goes by the name Security For Connected, Autonomous Cars (SecForCARs) and has funding of €7.2 million from the German Federal Ministry of Education and Research. Infineon is leading the project.

Vehicles already offer diverse communication interfaces and more and more automated functions, such as distance and lane-keeping assist systems. At the same...

Im Focus: Molecular switch will facilitate the development of pioneering electro-optical devices

A research team led by physicists at the Technical University of Munich (TUM) has developed molecular nanoswitches that can be toggled between two structurally different states using an applied voltage. They can serve as the basis for a pioneering class of devices that could replace silicon-based components with organic molecules.

The development of new electronic technologies drives the incessant reduction of functional component sizes. In the context of an international collaborative...

Im Focus: LZH showcases laser material processing of tomorrow at the LASYS 2018

At the LASYS 2018, from June 5th to 7th, the Laser Zentrum Hannover e.V. (LZH) will be showcasing processes for the laser material processing of tomorrow in hall 4 at stand 4E75. With blown bomb shells the LZH will present first results of a research project on civil security.

At this year's LASYS, the LZH will exhibit light-based processes such as cutting, welding, ablation and structuring as well as additive manufacturing for...

Im Focus: Self-illuminating pixels for a new display generation

There are videos on the internet that can make one marvel at technology. For example, a smartphone is casually bent around the arm or a thin-film display is rolled in all directions and with almost every diameter. From the user's point of view, this looks fantastic. From a professional point of view, however, the question arises: Is that already possible?

At Display Week 2018, scientists from the Fraunhofer Institute for Applied Polymer Research IAP will be demonstrating today’s technological possibilities and...

Im Focus: Explanation for puzzling quantum oscillations has been found

So-called quantum many-body scars allow quantum systems to stay out of equilibrium much longer, explaining experiment | Study published in Nature Physics

Recently, researchers from Harvard and MIT succeeded in trapping a record 53 atoms and individually controlling their quantum state, realizing what is called a...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

In focus: Climate adapted plants

25.05.2018 | Event News

Save the date: Forum European Neuroscience – 07-11 July 2018 in Berlin, Germany

02.05.2018 | Event News

Invitation to the upcoming "Current Topics in Bioinformatics: Big Data in Genomics and Medicine"

13.04.2018 | Event News

 
Latest News

In focus: Climate adapted plants

25.05.2018 | Event News

Flow probes from the 3D printer

25.05.2018 | Machine Engineering

Less is more? Gene switch for healthy aging found

25.05.2018 | Life Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>