TABLE 2.
Genes encoding chromatin modifiers or transcriptional coactivators involved in fruiting body developmentd
| Gene name(s) | Species and mutant or overexpression phenotype(s)a | Function or classb | Reference(s) |
|---|---|---|---|
| snt-2, sntB | Neurospora crassa, no perithecia; Aspergillus flavus, no sclerotia | BAH/PHD domain protein | 243, 244 |
| crc1 | Sordaria macrospora, single mutant fertile, only protoperithecia in a Δcrc1 Δcac2 Δrtt106 Δscm1 quadruple mutant | CRC domain protein | 32, 59 |
| dmtA | Aspergillus nidulans, immature cleistothecia without ascospores | (Putative) DNA methyltransferase | 245 |
| asf1 | Sordaria macrospora, only protoperithecia | H3/H4 histone chaperone | 28, 59 |
| rtt106 | Sordaria macrospora, single mutant fertile, only protoperithecia in a Δcrc1 Δcac2 Δrtt106 Δscm1 quadruple mutant | H3/H4 histone chaperone | 28, 32, 59 |
| cac2 | Sordaria macrospora, single mutant fertile, only protoperithecia in a Δcrc1 Δcac2 Δrtt106 Δscm1 quadruple mutant | H3/H4 histone chaperone (CAF-1 complex subunit) | 28, 32, 59 |
| AflGcnE, FgGCN5 | Aspergillus flavus, no sclerotia; Fusarium graminearum, no perithecia | HAT | 246, 247 |
| FgRTT109 | Fusarium graminearum, smaller perithecia with a few ascospores | HAT | 246 |
| FgSAS3 | Fusarium graminearum, fewer perithecia | HAT | 246 |
| SNT2 | Colletotrichum fructicola, smaller perithecia without spores | HDAC Rpd3 complex subunit | 248 |
| HOS2 | Colletotrichum fructicola, smaller perithecia without spores | HDAC Set3 complex subunit | 248 |
| FTL1 | Fusarium graminearum, female sterile | HDAC Set3 complex subunit | 249 |
| HDF1 | Fusarium graminearum, female sterile | HDAC Set3 complex subunit | 250 |
| dim-3 | Neurospora crassa, homozygous sterile | Importin subunit α | 251 |
| FfJmhy | Flammulina filiformis, reduced stipe elongation in RNAi knockdown strains | JmjC domain protein | 131 |
| rtfA | Aspergillus nidulans, no cleistothecia and Hülle cells | (Putative) Paf1 complex subunit | 252 |
| fscA | Aspergillus nidulans, no cleistothecia | RcLS2F complex subunit | 253 |
| scrC | Aspergillus nidulans, no cleistothecia | RcLS2F complex subunit | 253 |
| spt3 | Sordaria macrospora, only protoperithecia | SAGA complex subunit | 32, 117 |
| ich1 | Coprinopsis cinerea, no pileus differentiation | SAM-dependent methyltransferase domainc | 254 |
| laeA, bclaea, lae-1 | Aspergillus nidulans, fewer Hülle cells and more but smaller cleistothecia with fewer ascospores, cleistothecia produced in light; Botrytis cinerea, no sclerotia (female sterile); Neurospora crassa, fewer protoperithecia | SAM-dependent methyltransferase domainc | 82, 93, 232, 233 |
| vapB | Aspergillus nidulans, cleistothecia produced in light | SAM-dependent methyltransferase domainc | 85 |
| vipC | Aspergillus nidulans, cleistothecia produced in light | SAM-dependent methyltransferase domainc | 85 |
| scm1 | Sordaria macrospora, single mutant fertile, only protoperithecia in a Δcrc1 Δcac2 Δrtt106 Δscm1 quadruple mutant | (Putative) SAS complex subunit | 32 |
| kmt6 | Fusarium graminearum, sterile (no fruiting body precursors) | SET domain protein (H3K27 methyltransferase) | 73 |
| dim-5 | Neurospora crassa, few spores in homozygous crosses | SET domain protein (H3K9 methyltransferase) | 58, 69 |
| Cc.arp9 | Coprinopsis cinerea, no fruiting body formation | (Putatively) associated with SWI/SNF and RSC complexes | 255 |
| Cc.snf5 | Coprinopsis cinerea, no fruiting body formation | (Putative) SWI/SNF complex subunit | 256 |
Only phenotypes related to fruiting body development are given.
BAH, bromo-adjacent domain; CAF-1, chromatin assembly factor 1; CRC, chromatin remodeling complex; HAT, histone acetyltransferase; JmjC, Jumonji C (putative histone H3 demethylase domain); HDAC, histone deacetylase; PHD, plant homeodomain zinc finger; RcLS2F complex, RpdA core/LafA/SdsC/ScrC/FscA complex (a histone lysine deacetylase complex); RSC, remodels the structure of chromatin (a member of the SWI/SNF chromatin remodeling complex family); SAGA, Spt-Ada-Gcn5 acetyltransferase (a transcriptional coactivator); SAM, S-adenosylmethionine; SAS, something about silencing; SET domain, Su(var)3-9, enhancer-of-zeste, trithorax domain (a lysine methyltransferase family); SWI/SNF, switch/sucrose nonfermentable (a class of ATP-dependent chromatin remodeling complexes).
The methyltransferase proteins LaeA, VapB, and VipC from A. nidulans have not yet been shown to directly modify chromatin components but are included here because they are nuclear proteins with (at least) an indirect role in mediating the chromatin structure. The putative methyltransferase protein Ich1 from C. cinerea has not yet been shown to be involved in regulating the chromatin structure but was included because of its predicted methyltransferase domain and nuclear localization.
Genes are sorted according to (predicted) function and within group according to the species name.