Genetic basis for coordination of meiosis and sexual structure maturation in Cryptococcus neoformans

In the human fungal pathogen Cryptococcus neoformans, sex can benefit its pathogenicity through production of meiospores, which are believed to offer both physical and meiosis-created lineage advantages for its infections. Cryptococcus sporulation occurs following two parallel events, meiosis and di...

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Main Authors: Linxia Liu, Guang-Jun He, Lei Chen, Jiao Zheng, Yingying Chen, Lan Shen, Xiuyun Tian, Erwei Li, Ence Yang, Guojian Liao, Linqi Wang
Format: Article
Language:English
Published: eLife Sciences Publications Ltd 2018-10-01
Series:eLife
Subjects:
Online Access:https://elifesciences.org/articles/38683
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author Linxia Liu
Guang-Jun He
Lei Chen
Jiao Zheng
Yingying Chen
Lan Shen
Xiuyun Tian
Erwei Li
Ence Yang
Guojian Liao
Linqi Wang
author_facet Linxia Liu
Guang-Jun He
Lei Chen
Jiao Zheng
Yingying Chen
Lan Shen
Xiuyun Tian
Erwei Li
Ence Yang
Guojian Liao
Linqi Wang
author_sort Linxia Liu
collection DOAJ
description In the human fungal pathogen Cryptococcus neoformans, sex can benefit its pathogenicity through production of meiospores, which are believed to offer both physical and meiosis-created lineage advantages for its infections. Cryptococcus sporulation occurs following two parallel events, meiosis and differentiation of the basidium, the characteristic sexual structure of the basidiomycetes. However, the circuit integrating these events to ensure subsequent sporulation is unclear. Here, we show the spatiotemporal coordination of meiosis and basidial maturation by visualizing event-specific molecules in developing basidia defined by a quantitative approach. Monitoring of gene induction timing together with genetic analysis reveals co-regulation of the coordinated events by a shared regulatory program. Two RRM family regulators, Csa1 and Csa2, are crucial components that bridge meiosis and basidial maturation, further determining sporulation. We propose that the regulatory coordination of meiosis and basidial development serves as a determinant underlying the production of infectious meiospores in C. neoformans.
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spelling doaj.art-1a25d2513f19498193211307b178ac362022-12-22T04:32:43ZengeLife Sciences Publications LtdeLife2050-084X2018-10-01710.7554/eLife.38683Genetic basis for coordination of meiosis and sexual structure maturation in Cryptococcus neoformansLinxia Liu0Guang-Jun He1Lei Chen2Jiao Zheng3Yingying Chen4Lan Shen5Xiuyun Tian6Erwei Li7Ence Yang8Guojian Liao9Linqi Wang10https://orcid.org/0000-0002-5243-341XState Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China; University of Chinese Academy of Sciences, Beijing, ChinaState Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, ChinaState Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China; University of Chinese Academy of Sciences, Beijing, ChinaCollege of Pharmaceutical Sciences, Southwest University, Chongqing, ChinaState Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China; University of Chinese Academy of Sciences, Beijing, ChinaState Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, ChinaState Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, ChinaState Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, ChinaDepartment of Microbiology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, ChinaCollege of Pharmaceutical Sciences, Southwest University, Chongqing, ChinaState Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China; University of Chinese Academy of Sciences, Beijing, ChinaIn the human fungal pathogen Cryptococcus neoformans, sex can benefit its pathogenicity through production of meiospores, which are believed to offer both physical and meiosis-created lineage advantages for its infections. Cryptococcus sporulation occurs following two parallel events, meiosis and differentiation of the basidium, the characteristic sexual structure of the basidiomycetes. However, the circuit integrating these events to ensure subsequent sporulation is unclear. Here, we show the spatiotemporal coordination of meiosis and basidial maturation by visualizing event-specific molecules in developing basidia defined by a quantitative approach. Monitoring of gene induction timing together with genetic analysis reveals co-regulation of the coordinated events by a shared regulatory program. Two RRM family regulators, Csa1 and Csa2, are crucial components that bridge meiosis and basidial maturation, further determining sporulation. We propose that the regulatory coordination of meiosis and basidial development serves as a determinant underlying the production of infectious meiospores in C. neoformans.https://elifesciences.org/articles/38683Cryptococcus neoformanssexual reproductionmorphotype transitionsporulation
spellingShingle Linxia Liu
Guang-Jun He
Lei Chen
Jiao Zheng
Yingying Chen
Lan Shen
Xiuyun Tian
Erwei Li
Ence Yang
Guojian Liao
Linqi Wang
Genetic basis for coordination of meiosis and sexual structure maturation in Cryptococcus neoformans
eLife
Cryptococcus neoformans
sexual reproduction
morphotype transition
sporulation
title Genetic basis for coordination of meiosis and sexual structure maturation in Cryptococcus neoformans
title_full Genetic basis for coordination of meiosis and sexual structure maturation in Cryptococcus neoformans
title_fullStr Genetic basis for coordination of meiosis and sexual structure maturation in Cryptococcus neoformans
title_full_unstemmed Genetic basis for coordination of meiosis and sexual structure maturation in Cryptococcus neoformans
title_short Genetic basis for coordination of meiosis and sexual structure maturation in Cryptococcus neoformans
title_sort genetic basis for coordination of meiosis and sexual structure maturation in cryptococcus neoformans
topic Cryptococcus neoformans
sexual reproduction
morphotype transition
sporulation
url https://elifesciences.org/articles/38683
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