Universität zu Köln

Ye, Zihong, Pan, Yao, Zhang, Yafen, Cui, Haifeng, Jin, Gulei, McHardy, Alice C., Fan, Longjiang and Yu, Xiaoping (2017). Comparative whole-genome analysis reveals artificial selection effects on Ustilago esculenta genome. DNA Res., 24 (6). S. 635 - 649. OXFORD: OXFORD UNIV PRESS. ISSN 1756-1663

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Abstract

Ustilago esculenta, infects Zizania latifolia, and induced host stem swollen to be a popular vegetable called Jiaobai in China. It is the long-standing artificial selection that maximizes the occurrence of favourable Jiaobai, and thus maintaining the plant-fungi interaction and modulating the fungus evolving from plant pathogen to entophyte. In this study, whole genome of U. esculenta was sequenced and transcriptomes of the fungi and its host were analysed. The 20.2Mb U. esculenta draft genome of 6,654 predicted genes including mating, primary metabolism, secreted proteins, shared a high similarity to related Smut fungi. But U. esculenta prefers RNA silencing not repeat-induced point in defence and has more introns per gene, indicating relatively slow evolution rate. The fungus also lacks some genes in amino acid biosynthesis pathway which were filled by up-regulated host genes and developed distinct amino acid response mechanism to balance the infection-resistance interaction. Besides, U. esculenta lost some surface sensors, important virulence factors and host range-related effectors to maintain the economic endophytic life. The elucidation of the U. esculenta genomic information as well as expression profiles can not only contribute to more comprehensive insights into the molecular mechanism underlying artificial selection but also into smut fungi-host interactions.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Ye, Zihong UNSPECIFIED UNSPECIFIED UNSPECIFIED Pan, Yao UNSPECIFIED UNSPECIFIED UNSPECIFIED Zhang, Yafen UNSPECIFIED UNSPECIFIED UNSPECIFIED Cui, Haifeng UNSPECIFIED UNSPECIFIED UNSPECIFIED Jin, Gulei UNSPECIFIED UNSPECIFIED UNSPECIFIED McHardy, Alice C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Fan, Longjiang UNSPECIFIED UNSPECIFIED UNSPECIFIED Yu, Xiaoping UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-208995
DOI:	10.1093/dnares/dsx031
Journal or Publication Title:	DNA Res.
Volume:	24
Number:	6
Page Range:	S. 635 - 649
Date:	2017
Publisher:	OXFORD UNIV PRESS
Place of Publication:	OXFORD
ISSN:	1756-1663
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language PATHOGEN MYCOSPHAERELLA-GRAMINICOLA; ZIZANIA-LATIFOLIA; CROP DOMESTICATION; MITOCHONDRIAL INHERITANCE; SIGNALING PATHWAYS; GENE-EXPRESSION; WILD-RICE; HOST; FUNGAL; MAYDIS Multiple languages Genetics & Heredity Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/20899