Project description:Illumina HiSeq technology was used to generate mRNA profiles from two strains of Trametes versicolor. Mycelium of Trametes versicolor BRFM1218 and Trametes versicolor 1956-1252 were harvested after 2 and 4 weeks of incubation on 4% malt agar medium and used for total RNA extraction. Paired-end reads of 100 bp were generated and aligned to Trametes versicolor (https://mycocosm.jgi.doe.gov/Trave1/Trave1.home.html) reference transcripts using CLC Genomics Workbench 7.5.1.
Project description:Trametes hirsuta AH28-2 is a white-rot basidiomycete originally isolated from rotting wood in China. This strain can secrete high levels of extracellular laccase induced by copper and o-toluidine with great potential applications in industry and environment. However, the proteomics and mechanisms for regulating laccases from T. hirsuta AH28-2 fungi at the protein level have not been investigated. To explore the functional factors related to laccases, label-free quantification proteomics was used to identify proteins produced by T. hirsuta AH28-2, and the differentially expressed proteins (DEPs) were compared in the control, 2 mM o-toluidine and 50 uM copper ion cultures of T. hirsuta AH28-2 for 48h. Here, across all samples, a total of 5,089 proteins were quantified, of which 504 exhibited significant differential expression (278 up-regulated and 226 down-regulated) in the o-toluidine induction group, and 447 with significant differential expression (282 up-regulated and 165 down-regulated) in the copper induction group. These DEPs from o-toluidine induction group were significantly enriched in the pathways of sphingolipid metabolism, toluene degradation, DNA replication and drug metabolism-cytochrome P450, and DEPs from copper induction group were significantly enriched in aminobenzoate degradation and ABC transporters pathways. Furthermore, a total of 120 and 119 DEPs identified in o-toluidine- and copper- induction group were predicted as TFs, respectively. Protein-protein interaction networks analyses showed that Zn2Cys6 (GME7257_g and GME6689_g) transcription factors possessed strong protein interaction with laccases in o-toluidine- and copper-induction group. Several proteins with different expression were consistent with the proteomics of T. hirsuta AH28-2 by parallel reaction monitoring (PRM) verification.
Project description:Here we investigate the function of CUC1(CUP-SHAPED COTYLEDON1) in the diversification of leaf forms between simple-leaved Arabidopsis thaliana and compound-leaved Cardamine hirsuta. CUC transcription factors are conserved regulators in leaf margin dissection and leaflet formation. ChCUC1, ChCUC2 and ChCUC3 function redundantly and are required for the leaflet formation in C. hirsuta. Recently we discovered that ChCUC1 has species species-specific expression in young leaves of C.hirsuta. Moreover, interspecies gene transfer of ChCUC1 allele into A.thaliana is sufficient to increase leaf complexity. On this basis, we hypothesize that redeployment of ChCUC1 in leaves contributes to the formation of leaflets instead of serrations. However, the mechanism underlying ChCUC1 regulating cell division, cell polarity, cytoskeleton and thus leaf marginal patterning remains elusive. To this end, we make use of chromatin immunoprecipitation sequencing(ChIP-seq), transcriptomic, comparative genetics and advanced imaging approaches to identify the downstream regulating genes of ChCUC1.