Depotter, Jasper R. L., Zuo, Weiliang ORCID: 0000-0001-5241-1440, Hansen, Maike, Zhang, Boqi, Xu, Mingliang and Doehlemann, Gunther ORCID: 0000-0002-7353-8456 (2021). Effectors with Different Gears: Divergence of Ustilago maydis Effector Genes Is Associated with Their Temporal Expression Pattern during Plant Infection. J. Fungi, 7 (1). BASEL: MDPI. ISSN 2309-608X

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Abstract

Plant pathogens secrete a variety of effector proteins that enable host colonization but are also typical pathogen detection targets for the host immune system. Consequently, effector genes encounter high selection pressures, which typically makes them fast evolving. The corn smut pathogen Ustilago maydis has an effector gene repertoire with a dynamic expression across the different disease stages. We determined the amino acid divergence of U. maydis effector candidates with Sporisorium reilianum orthologs, a close relative of U. maydis. Intriguingly, there are two distinct groups of effector candidates, ones with a respective conserved and diverged protein evolution. Conservatively evolving effector genes especially have their peak expression during the (pre-)penetration stages of the disease cycle. In contrast, expression of divergently evolving effector genes generally peaks during fungal proliferation within the host. To test if this interspecific effector diversity corresponds to intraspecific diversity, we sampled and sequenced a diverse collection of U. maydis strains from the most important maize breeding and production regions in China. Effector candidates with a diverged interspecific evolution had more intraspecific amino acid variation than candidates with a conserved evolution. In conclusion, we highlight diversity in evolution within the U. maydis effector repertoire with dynamically and conservatively evolving members.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Depotter, Jasper R. L.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Zuo, WeiliangUNSPECIFIEDorcid.org/0000-0001-5241-1440UNSPECIFIED
Hansen, MaikeUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Zhang, BoqiUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Xu, MingliangUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Doehlemann, GuntherUNSPECIFIEDorcid.org/0000-0002-7353-8456UNSPECIFIED
URN: urn:nbn:de:hbz:38-570001
DOI: 10.3390/jof7010016
Journal or Publication Title: J. Fungi
Volume: 7
Number: 1
Date: 2021
Publisher: MDPI
Place of Publication: BASEL
ISSN: 2309-608X
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
Microbiology; MycologyMultiple languages
URI: http://kups.ub.uni-koeln.de/id/eprint/57000

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