A multi-omic map of the lipid-producing yeast Rhodosporidium toruloides.

A multi-omic map of the lipid-producing yeast Rhodosporidium toruloides.
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产脂酵母圆红冬孢酵母的多组学图谱

DOI:
10.1038/ncomms2112
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发表时间:
2012
影响因子:
16.6
通讯作者:
--
中科院分区:
综合性期刊1区
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--
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Triacylglycerols are among the most attractive alternative raw materials for biofuel development. Current oil plant-based technologies are limited in terms of triacylglycerol production capacity and rate. These limitations may be circumvented by biotransformation of carbohydrates into lipids; however, our understanding of microbial oleaginicity remains limited. Here we present the results of a multi-omic analysis of Rhodosporidium toruloides, a robust triacylglycerol-producing fungus. The assembly of genome and transcriptome sequencing data reveals a genome of 20.2 Mb containing 8,171 protein-coding genes, the majority of which have multiple introns. Genes including a novel fatty acid synthase are predicted to participate in metabolic pathways absent in non-oleaginous yeasts. Transcriptomic and proteomic data suggest that lipid accumulation under nitrogen-limited conditions correlates with the induction of lipogenesis, nitrogenous compound recycling, macromolecule metabolism and autophagy. The multi-omic map of R. toruloides therefore provides a valuable resource for efforts to rationally engineer lipid-production pathways. The ability of oleaginous fungi to produce lipids for biofuels remains untapped, in part due to a lack of genetic information required to engineer industrial strains. Zhuet al. present the genome of R. toruloides, and identify transcriptomic and proteomic changes associated with lipid production.
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