Population genetics of Hirsutella rhossiliensis, a dominant parasite of cyst nematode juveniles on a continental scale

Niuniu Wang, Yongjie Zhang, Xianzhi Jiang, Chi Shu, M. Imran Hamid, Muzammil Hussain, Senyu Chen, Jianping Xu, Meichun Xiang, Xingzhong Liu

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Hirsutella rhossiliensis is a parasite of juvenile nematodes, effective against a diversity of plant-parasitic nematodes. Its global distribution on various nematode hosts and its genetic variation for several geographic regions have been reported, while the global population genetic structure and factors underlying patterns of genetic variation of H. rhossiliensis are unclear. In this study, 87 H. rhossiliensis strains from five nematode species (Globodera sp., Criconemella xenoplax, Rotylenchus robustus, Heterodera schachtii, and Heterodera glycines) in Europe, the United States, and China were investigated by multilocus sequence analyses. A total of 280 variable sites (frequency, 0.6%) at eight loci and six clustering in high accordance with geographic populations or host nematode-associated populations were identified. Although H. rhossiliensis is currently recognized as an asexual fungus, recombination events were frequently detected. In addition, significant genetic isolation by geography and nematode hosts was revealed. Overall, our analyses showed that recombination, geographic isolation, and nematode host adaptation have played significant roles in the evolutionary history of H. rhossiliensis.

Original languageEnglish (US)
Pages (from-to)6317-6325
Number of pages9
JournalApplied and environmental microbiology
Volume82
Issue number21
DOIs
StatePublished - 2016

Bibliographical note

Publisher Copyright:
© 2016, American Society for Microbiology.

Fingerprint

Dive into the research topics of 'Population genetics of Hirsutella rhossiliensis, a dominant parasite of cyst nematode juveniles on a continental scale'. Together they form a unique fingerprint.

Cite this