Going green in Cryptococcus neoformans: the recycling of a selectable drug marker.

Fungal Genetics and Biology : FG & B
Raunak D PatelLorina G Baker

Abstract

Cryptococcus neoformans is an opportunistic fungal pathogen that primarily affects immunocompromised individuals. Reverse genetics is commonly used to identify and characterize genes involved in a variety of cellular processes. In C. neoformans there is a limited set of positive selectable markers available to make gene deletions or other genetic manipulations. This has hampered the application of reverse genetics in this organism. We have adapted the Bacteriophage P1 Cre-loxP system for use in C. neoformans and successfully excised and reused the same drug marker, G418, to make two sequential gene deletions, lac1Delta and cap59Delta, in the same strain. This tool will allow investigators to make multiple sequential gene deletions in the same strain, which should facilitate the analysis of multigene families.

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Citations

Apr 20, 2013·Analytical Biochemistry·Jian DongDongguang Xiao
Nov 10, 2015·Trends in Microbiology·Timothy C CairnsKen Haynes
Jan 1, 2014·Yeast·Deepa SrikantaTamara L Doering
May 6, 2014·Fungal Genetics and Biology : FG & B·Tatiana Q AguiarLucília Domingues
Feb 29, 2020·Current Biology : CB·Youbao ZhaoXiaorong Lin

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