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Flavescence Dorée Vine Disease Genome Decoded for the First Time

Agroscope - Swiss centre of excellence for agricultural research

Agroscope researchers have succeeded in cracking the genome of a quarantine grapevine disease, flavescence dorée, which had proven virtually impossible to combat to date. The decoding will enable us to identify the weak points of the pathogen so that it can be fought more effectively. 


Highly specialised pathogen

The disease is caused by phytoplasmas (bacteria which lack a cell wall). To eradicate the disease, it is important to understand how the pathogen spreads and what happens to the affected plant. That’s why Agroscope researchers have cracked the genetic code of the pathogen.

Unlike other phytoplasmas, this pathogen has a stable genome structure. This is a critical discovery, since a stable genome means that the weak points also behave in a stable manner. This makes it easier to detect these weak points and use them to eliminate the pathogen.


Gene function and genetic diversity

The next stage consists of studying the function of the genes revealed by the sequencing of the genome. This helps us understand how the pathogen bypasses a plant’s defences and makes it sick.

For more information, consult the Publication The Complete Genome of the “Flavescence Dorée” Phytoplasma Reveals Characteristics of Low Genome Plasticity

 

Source: Agroscope 

Published on 09/20/2022
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