Research Keyword: breeding programs

Whole Genome Sequence of the Commercially Relevant Mushroom Strain Agaricus bisporus var. bisporus ARP23

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Researchers sequenced the complete genome of a wild button mushroom strain (ARP23) that has been successfully bred with commercial mushrooms to create the ‘Heirloom’ variety. This strain is larger and contains more genes than other known button mushroom strains, making it valuable for breeding disease-resistant varieties. The genome sequence reveals that all button mushroom strains share core genes for breaking down plant material in compost, but have diverse collections of optional genes. This genetic resource provides a foundation for developing mushrooms more resistant to diseases and viruses.

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Genetic Clarification of Auricularia heimuer Strains Bred and Cultivated in Korea Using the ITS and IGS1 rDNA Region Sequences

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Researchers in Korea discovered that Auricularia mushrooms grown there are actually a different species than previously thought. By analyzing the genetic code of different mushroom strains, scientists confirmed they are all the species A. heimuer rather than A. auricula-judae. They also found that using specific genetic markers (IGS1 sequences) could tell apart different mushroom varieties and identify which strains were produced through breeding.

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