A recently evolved transcriptional network controls biofilm development in Candida albicans.

A recently evolved transcriptional network controls biofilm development in Candida albicans.
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DOI:
10.1016/j.cell.2011.10.048
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发表时间:
2012-01-20
期刊:
影响因子:
64.5
通讯作者:
Johnson AD
Johnson AD
中科院分区:
生物学1区
文献类型:
--
作者:
Nobile CJ;Fox EP;Nett JE;Sorrells TR;Mitrovich QM;Hernday AD;Tuch BB;Andes DR;Johnson AD

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A biofilm is an organized, resilient group of microbes where individual cells acquire properties, such as drug resistance, that are distinct from those observed in suspension cultures. Here we describe and analyze the transcriptional network controlling biofilm formation in the pathogenic yeast Candida albicans, whose biofilms are a major source of medical device-associated infections. We have combined genetic screens, genome-wide approaches, and two in vivo animal models to describe a master circuit controlling biofilm formation, composed of six transcription regulators that form a tightly woven network with ~1000 target genes. Evolutionary analysis indicates that the biofilm network has rapidly evolved: genes in the biofilm circuit are significantly weighted towards genes that arose relatively recently with ancient genes being underrepresented. This circuit provides a framework for understanding many aspects of biofilm formation by C. albicans in a mammalian host. It also provides insights into how complex cell behaviors can arise from the evolution of transcription circuits.
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