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Microbiol Res. 2013 Oct 1;168(8):533-46. doi: 10.1016/j.micres.2013.02.009. Epub 2013 Apr 6.

Genes encoding FAD-binding proteins in Volvariella volvacea exhibit differential expression in homokaryons and heterokaryons.

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Engineering Research Center of Chinese Ministry of Education for Edible and Medicinal Fungi, Jilin Agricultural University, Changchun, Jilin 130118, China.


Flavin adenine dinucleotide (FAD)-binding proteins play a vital role in energy transfer and utilization during fungal growth and mycelia aggregation. We sequenced the genome of Volvariella volvacea, an economically important edible fungus, and discovered 41 genes encoding FAD-binding proteins. Gene expression profiles revealed that the expression levels of four distinctly differentially expressed genes in heterokaryotic strain H1521 were higher than in homokaryotic strains PYd15 and PYd21 combined. These observations were validated by quantitative real-time PCR. The results suggest that the differential expression of FAD-binding proteins may be important in revealing the distinction between homokaryons and heterokaryons on the basis of FAD-binding protein functionality.


Differential expression; FAD-binding protein; Heterokaryon; Homokaryon; Volvariella volvacea

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