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 New risk factors for anxiety disorders
24.02.2017 | Julius-Maximilians-Universität Würzburg

nachricht Stingless bees have their nests protected by soldiers
24.02.2017 | Johannes Gutenberg-Universität Mainz

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: Breakthrough with a chain of gold atoms

In the field of nanoscience, an international team of physicists with participants from Konstanz has achieved a breakthrough in understanding heat transport

In the field of nanoscience, an international team of physicists with participants from Konstanz has achieved a breakthrough in understanding heat transport

Im Focus: DNA repair: a new letter in the cell alphabet

Results reveal how discoveries may be hidden in scientific “blind spots”

Cells need to repair damaged DNA in our genes to prevent the development of cancer and other diseases. Our cells therefore activate and send “repair-proteins”...

Im Focus: Dresdner scientists print tomorrow’s world

The Fraunhofer IWS Dresden and Technische Universität Dresden inaugurated their jointly operated Center for Additive Manufacturing Dresden (AMCD) with a festive ceremony on February 7, 2017. Scientists from various disciplines perform research on materials, additive manufacturing processes and innovative technologies, which build up components in a layer by layer process. This technology opens up new horizons for component design and combinations of functions. For example during fabrication, electrical conductors and sensors are already able to be additively manufactured into components. They provide information about stress conditions of a product during operation.

The 3D-printing technology, or additive manufacturing as it is often called, has long made the step out of scientific research laboratories into industrial...

Im Focus: Mimicking nature's cellular architectures via 3-D printing

Research offers new level of control over the structure of 3-D printed materials

Nature does amazing things with limited design materials. Grass, for example, can support its own weight, resist strong wind loads, and recover after being...

Im Focus: Three Magnetic States for Each Hole

Nanometer-scale magnetic perforated grids could create new possibilities for computing. Together with international colleagues, scientists from the Helmholtz Zentrum Dresden-Rossendorf (HZDR) have shown how a cobalt grid can be reliably programmed at room temperature. In addition they discovered that for every hole ("antidot") three magnetic states can be configured. The results have been published in the journal "Scientific Reports".

Physicist Dr. Rantej Bali from the HZDR, together with scientists from Singapore and Australia, designed a special grid structure in a thin layer of cobalt in...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Booth and panel discussion – The Lindau Nobel Laureate Meetings at the AAAS 2017 Annual Meeting

13.02.2017 | Event News

Complex Loading versus Hidden Reserves

10.02.2017 | Event News

International Conference on Crystal Growth in Freiburg

09.02.2017 | Event News

 
Latest News

Stingless bees have their nests protected by soldiers

24.02.2017 | Life Sciences

New risk factors for anxiety disorders

24.02.2017 | Life Sciences

MWC 2017: 5G Capital Berlin

24.02.2017 | Trade Fair News

VideoLinks
B2B-VideoLinks
More VideoLinks >>>