Carbon metabolism and transcriptome in developmental paths differentiation of a homokaryotic Coprinopsis cinerea strain.

Fungal Genetics and Biology : FG & B
Yichun XieHoi Shan Kwan

Abstract

The balance and interplay between sexual and asexual reproduction is one of the most intriguing mysteries in the study of fungi. The choice of developmental strategy reflects the ability of fungi to adapt to the changing environment. However, the evolution of developmental paths and the metabolic regulation during differentiation and morphogenesis are poorly understood. Here, an analysis was performed of carbohydrate metabolism and gene expression regulation during the early differentiation process from the vegetative mycelium, to the differentiated structures, fruiting body, oidia and sclerotia, of a homokaryotic fruiting Coprinopsis cinerea strain A43mutB43mut pab1-1 #326. Changes during morphogenesis and the evolution of developmental strategies were followed. Conversion between glucose and glycogen and between glucose and beta-glucan were the main carbon flows in the differentiation processes. Genes related to carbohydrate transport and metabolism were significantly differentially expressed among paths. Sclerotia displayed a set of specifically up-regulated genes that were enriched in the carbon metabolism and energy production and conversion processes. Evolutionary transcriptomic analysis of four developmental paths showed...Continue Reading

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