Research progress and insights of the biological properties of edible basidiomycete dikaryon
Typical edible mushrooms of the Basidiomycota,such as Lentinula edodes,Ganoderma lingzhi,Flammulina filiformis,Pleurotus ostreatus,Auricularia heimuer,etc.,exhibit a crucial form in their life cycle known as the dikaryon.The dikaryon can generate monokaryon through both sexual and asexual means,and the compatible monokaryons form dikaryon with the clamp connection through plasmogamy.Research on monokaryon of edible mushrooms has enriched the understanding of the biology of the monokaryon and the dikaryon.Existing as a haploid having two nuclei,the dikaryon possesses various biological traits distinct from diploids.Some studies have investigated the biological properties such as hierarchy,fitness,and stability of the dikaryon,offering insights for maintenance of strain characteristics,innovation of hybrid breeding,construction of genetic research paradigm.Analyzing biological characteristics of the dikaryon,such as reproductive ability,fertility,and totipotency,could provide insights into addressing the long-term stability issues in edible mushroom strains.The dominance-recessive relationship and complementary nature between nuclei in the dikaryon cells might hold significant guidance for innovative hybrid breeding.The presence of different expression levels of karyollele pairs in dikaryon cells offers a new perspective to explore scientific problems concerning edible mushroom.Research on the dikaryon could potentially form a more distinctive paradigm in edible mushroom studies.
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