Abstract
We characterized a Coprinopsis cinerea mutant strain, Spe20, defective in fruiting initiation, which was isolated after restriction enzyme-mediated integration (REMI) mutagenesis of a homokaryotic fruiting strain, 326. A plasmid rescue followed by complementation experiments, RACE, and cDNA analyses revealed that the gene, a mutation of which is responsible for the phenotype, is predicted to encode a protein that exhibits a high similarity to yeast Snf5p, a key component of the chromatin remodeling complex SWI/SNF, and named Cc.snf5. Cc.Snf5 is, however, different from Snf5p in that the former has, in addition to an Snf5 domain comprising N-terminal repeat1 (rp1) and C-terminal repeat2 (rp2) subdomains in a middle region, a GATA Zn-finger domain in a C-terminal region. In strain Spe20, plasmid pPHT1 used for REMI is inserted in the ORF encoding rp2. This raised the possibility that in strain Spe20, the disrupted Cc.Snf5 is functionally active albeit incompletely because it retains rp1. Thus, we disrupted the whole SNF5 domain and its downstream peptide and found that the disruption results in inhibition of not only fruiting initiation but also dikaryon development, a prerequisite for fruiting. We also found that specific disruption of the Zn-finger domain results in inhibition of fruiting initiation. These results indicate that Cc.Snf5 plays an essential role in sexual development of C. cinerea.
| Original language | English |
|---|---|
| Pages (from-to) | 82-89 |
| Number of pages | 8 |
| Journal | Fungal Genetics and Biology |
| Volume | 50 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - Jan 2013 |
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Keywords
- Coprinus cinereus
- Dikaryon
- Fruiting
- Gene targeting
- REMI
ASJC Scopus subject areas
- Genetics
- Microbiology
Cite this
Cc.snf5, a gene encoding a putative component of the SWI/SNF chromatin remodeling complex, is essential for sexual development in the agaricomycete Coprinopsis cinerea. / Ando, Yuki; Nakazawa, Takehito; Oka, Kunihiko; Nakahori, Kiyoshi; Kamada, Takashi.
In: Fungal Genetics and Biology, Vol. 50, No. 1, 01.2013, p. 82-89.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Cc.snf5, a gene encoding a putative component of the SWI/SNF chromatin remodeling complex, is essential for sexual development in the agaricomycete Coprinopsis cinerea
AU - Ando, Yuki
AU - Nakazawa, Takehito
AU - Oka, Kunihiko
AU - Nakahori, Kiyoshi
AU - Kamada, Takashi
PY - 2013/1
Y1 - 2013/1
N2 - We characterized a Coprinopsis cinerea mutant strain, Spe20, defective in fruiting initiation, which was isolated after restriction enzyme-mediated integration (REMI) mutagenesis of a homokaryotic fruiting strain, 326. A plasmid rescue followed by complementation experiments, RACE, and cDNA analyses revealed that the gene, a mutation of which is responsible for the phenotype, is predicted to encode a protein that exhibits a high similarity to yeast Snf5p, a key component of the chromatin remodeling complex SWI/SNF, and named Cc.snf5. Cc.Snf5 is, however, different from Snf5p in that the former has, in addition to an Snf5 domain comprising N-terminal repeat1 (rp1) and C-terminal repeat2 (rp2) subdomains in a middle region, a GATA Zn-finger domain in a C-terminal region. In strain Spe20, plasmid pPHT1 used for REMI is inserted in the ORF encoding rp2. This raised the possibility that in strain Spe20, the disrupted Cc.Snf5 is functionally active albeit incompletely because it retains rp1. Thus, we disrupted the whole SNF5 domain and its downstream peptide and found that the disruption results in inhibition of not only fruiting initiation but also dikaryon development, a prerequisite for fruiting. We also found that specific disruption of the Zn-finger domain results in inhibition of fruiting initiation. These results indicate that Cc.Snf5 plays an essential role in sexual development of C. cinerea.
AB - We characterized a Coprinopsis cinerea mutant strain, Spe20, defective in fruiting initiation, which was isolated after restriction enzyme-mediated integration (REMI) mutagenesis of a homokaryotic fruiting strain, 326. A plasmid rescue followed by complementation experiments, RACE, and cDNA analyses revealed that the gene, a mutation of which is responsible for the phenotype, is predicted to encode a protein that exhibits a high similarity to yeast Snf5p, a key component of the chromatin remodeling complex SWI/SNF, and named Cc.snf5. Cc.Snf5 is, however, different from Snf5p in that the former has, in addition to an Snf5 domain comprising N-terminal repeat1 (rp1) and C-terminal repeat2 (rp2) subdomains in a middle region, a GATA Zn-finger domain in a C-terminal region. In strain Spe20, plasmid pPHT1 used for REMI is inserted in the ORF encoding rp2. This raised the possibility that in strain Spe20, the disrupted Cc.Snf5 is functionally active albeit incompletely because it retains rp1. Thus, we disrupted the whole SNF5 domain and its downstream peptide and found that the disruption results in inhibition of not only fruiting initiation but also dikaryon development, a prerequisite for fruiting. We also found that specific disruption of the Zn-finger domain results in inhibition of fruiting initiation. These results indicate that Cc.Snf5 plays an essential role in sexual development of C. cinerea.
KW - Coprinus cinereus
KW - Dikaryon
KW - Fruiting
KW - Gene targeting
KW - REMI
UR - http://www.scopus.com/inward/record.url?scp=84871364419&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84871364419&partnerID=8YFLogxK
U2 - 10.1016/j.fgb.2012.09.010
DO - 10.1016/j.fgb.2012.09.010
M3 - Article
VL - 50
SP - 82
EP - 89
JO - Fungal Genetics and Biology
JF - Fungal Genetics and Biology
SN - 1087-1845
IS - 1
ER -