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- Title
A gene encoding a hydrophobin, fvh1, is specifically expressed after the induction of fruiting in the edible mushroom Flammulina velutipes.
- Authors
Ando, Akira; Harada, Akira; Miura, Kiyoshi; Tamai, Yutaka
- Abstract
A cDNA clone of the gene fvh1 was previously isolated from a preprimordial cDNA library made from the basidiomycete Flammulina velutipes. Sequence analysis showed that fvh1 encoded for a hydrophobin, a small fungal protein usually secreted by filamentous fungi. FVH1 had a highly conserved arrangement of eight cysteine residues, a putative N-terminal signal sequence and a hydropathy pattern characteristic of class I hydrophobin. A genomic fvh1 clone was isolated from a F. velutipes genomic DNA library and sequenced. Several putative promoter elements and three small introns of fvh1 were identified in this clone. Southern blot analysis of genomic DNA showed that fvh1 was a single copy gene. Northern analysis indicated that fvh1 was specifically and abundantly expressed in mycelia after the induction of fruiting and during fruit body initiation. It was not expressed in mycelia before the induction of fruiting or in mature fruit bodies.
- Subjects
BASIDIOMYCETES; PROTEINASES; HYDROTHERAPY; MYCELIUM; GENES; NUCLEIC acids
- Publication
Current Genetics, 2001, Vol 39, Issue 3, p190
- ISSN
0172-8083
- Publication type
Article
- DOI
10.1007/s002940100193