Botrytis Fungus

Botrytis Fungus : Recently, scientists from Sichuan University (China) and the University of British Columbia (Canada) discovered that the well-known botrytis fungus, also known as “noble rot,” cannot be cloned.

o Their study, published in Science, reveals that the fungus distributes its chromosomes among multiple nuclei—defying a core principle of cellular biology.

• About Botrytis Cinerea : A beneficial fungus celebrated in winemaking. It infects and dehydrates grapes, concentrating sugars and flavors.

o This process produces some of the world's most prized sweet wines, such as: Sauternes (France), Tokaji (Hungary) and Trockenbeerenauslese (Germany/Austria)

• Cloning Challenge: Typically, every nucleus in a cell contains a complete set of chromosomes, enabling cloning and genetic engineering. However, in both Botrytis cinerea and its relative Sclerotinia sclerotiorum, no single nucleus holds the full genome.

o Instead, the genetic material is split across multiple nuclei within one cell.

o Each nucleus contains only a partial set of chromosomes, making cloning impossible. This discovery challenges long-held principles of cellular and fungal biology.