Genetic structure and parasitization-related ability divergence of a nematode fungal pathogen Hirsutella minnesotensis following founder effect in China

Chi Shu; Xianzhi Jiang; Xiaoli Cheng; Niuniu Wang; Senyu Chen; Meichun Xiang; Xingzhong Liu

doi:10.1016/j.fgb.2015.02.005

Genetic structure and parasitization-related ability divergence of a nematode fungal pathogen Hirsutella minnesotensis following founder effect in China

Chi Shu, Xianzhi Jiang, Xiaoli Cheng, Niuniu Wang, Senyu Chen, Meichun Xiang, Xingzhong Liu

Southern Research and Outreach Center

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

The fungal parasitoid, Hirsutella minnesotensis, is a dominant parasitoid of the soybean cyst nematode, which is a destruction pest of soybean crops. We investigated population structure and parasitism pattern in samples of H. minnesotensis in China to reveal the spreading pattern of this fungal species and the underlying mechanism generating the parasitization-related ability variability in Chinese population. In cross-inoculation experiments using different combinations of H. minnesotensis and soybean cyst nematode samples from China, most H. minnesotensis isolates fitted the criterion for "local versus foreign" parasitism profile, exhibiting local adaptation pattern to the SCN host. However, the genetic analysis of the single nucleotide polymorphisms with clone-corrected samples based on ten DNA fragments in 56 isolates of H. minnesotensis from China revealed that the Chinese H. minnesotensis population was a clonal lineage that underwent a founder event. The results demonstrated that the Chinese H. minnesotensis population had generated parasitization-related ability diversity after a founder event through individual variation or phenotypic plasticity other than local adaptation. The rapid divergence of parasitization-related abilities with simple genetic structure in Chinese H. minnesotensis population indicates a fundamental potential for the establishment of invasive fungal species, which is a prerequisite for biological control agents.

Original language	English (US)
Pages (from-to)	212-220
Number of pages	9
Journal	Fungal Genetics and Biology
Volume	81
DOIs	https://doi.org/10.1016/j.fgb.2015.02.005
State	Published - Aug 1 2015

Bibliographical note

Funding Information:
This study was supported by the National Key Basic Research Program of China (program no. 973, Grant No. 2013CB127506 ), the National Natural Science Foundation of China (Grant No. 30800732 ), and the National Public Benefit Research Foundation of China (Grant No. 200903040 ). The authors thank Bruce Jaffee at the University of California, Davis, USA, for his constructive comments and International Science Editing for the editing, and Dr. Qiming Wang for his instructions on population genetics analyses.

Keywords

Ecological adaptation
Invasive species
Population bottleneck
Soybean cyst nematode

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access

10.1016/j.fgb.2015.02.005

OpenUrl availability

Full text

Cite this

@article{92af4fe8da374bc39f3a7dbc4b4919dc,

title = "Genetic structure and parasitization-related ability divergence of a nematode fungal pathogen Hirsutella minnesotensis following founder effect in China",

abstract = "The fungal parasitoid, Hirsutella minnesotensis, is a dominant parasitoid of the soybean cyst nematode, which is a destruction pest of soybean crops. We investigated population structure and parasitism pattern in samples of H. minnesotensis in China to reveal the spreading pattern of this fungal species and the underlying mechanism generating the parasitization-related ability variability in Chinese population. In cross-inoculation experiments using different combinations of H. minnesotensis and soybean cyst nematode samples from China, most H. minnesotensis isolates fitted the criterion for {"}local versus foreign{"} parasitism profile, exhibiting local adaptation pattern to the SCN host. However, the genetic analysis of the single nucleotide polymorphisms with clone-corrected samples based on ten DNA fragments in 56 isolates of H. minnesotensis from China revealed that the Chinese H. minnesotensis population was a clonal lineage that underwent a founder event. The results demonstrated that the Chinese H. minnesotensis population had generated parasitization-related ability diversity after a founder event through individual variation or phenotypic plasticity other than local adaptation. The rapid divergence of parasitization-related abilities with simple genetic structure in Chinese H. minnesotensis population indicates a fundamental potential for the establishment of invasive fungal species, which is a prerequisite for biological control agents.",

keywords = "Ecological adaptation, Invasive species, Population bottleneck, Soybean cyst nematode",

author = "Chi Shu and Xianzhi Jiang and Xiaoli Cheng and Niuniu Wang and Senyu Chen and Meichun Xiang and Xingzhong Liu",

note = "Funding Information: This study was supported by the National Key Basic Research Program of China (program no. 973, Grant No. 2013CB127506 ), the National Natural Science Foundation of China (Grant No. 30800732 ), and the National Public Benefit Research Foundation of China (Grant No. 200903040 ). The authors thank Bruce Jaffee at the University of California, Davis, USA, for his constructive comments and International Science Editing for the editing, and Dr. Qiming Wang for his instructions on population genetics analyses. ",

year = "2015",

month = aug,

day = "1",

doi = "10.1016/j.fgb.2015.02.005",

language = "English (US)",

volume = "81",

pages = "212--220",

journal = "Fungal Genetics and Biology",

issn = "1087-1845",

publisher = "Academic Press Inc.",

}

TY - JOUR

T1 - Genetic structure and parasitization-related ability divergence of a nematode fungal pathogen Hirsutella minnesotensis following founder effect in China

AU - Shu, Chi

AU - Jiang, Xianzhi

AU - Cheng, Xiaoli

AU - Wang, Niuniu

AU - Chen, Senyu

AU - Xiang, Meichun

AU - Liu, Xingzhong

N1 - Funding Information: This study was supported by the National Key Basic Research Program of China (program no. 973, Grant No. 2013CB127506 ), the National Natural Science Foundation of China (Grant No. 30800732 ), and the National Public Benefit Research Foundation of China (Grant No. 200903040 ). The authors thank Bruce Jaffee at the University of California, Davis, USA, for his constructive comments and International Science Editing for the editing, and Dr. Qiming Wang for his instructions on population genetics analyses.

PY - 2015/8/1

Y1 - 2015/8/1

N2 - The fungal parasitoid, Hirsutella minnesotensis, is a dominant parasitoid of the soybean cyst nematode, which is a destruction pest of soybean crops. We investigated population structure and parasitism pattern in samples of H. minnesotensis in China to reveal the spreading pattern of this fungal species and the underlying mechanism generating the parasitization-related ability variability in Chinese population. In cross-inoculation experiments using different combinations of H. minnesotensis and soybean cyst nematode samples from China, most H. minnesotensis isolates fitted the criterion for "local versus foreign" parasitism profile, exhibiting local adaptation pattern to the SCN host. However, the genetic analysis of the single nucleotide polymorphisms with clone-corrected samples based on ten DNA fragments in 56 isolates of H. minnesotensis from China revealed that the Chinese H. minnesotensis population was a clonal lineage that underwent a founder event. The results demonstrated that the Chinese H. minnesotensis population had generated parasitization-related ability diversity after a founder event through individual variation or phenotypic plasticity other than local adaptation. The rapid divergence of parasitization-related abilities with simple genetic structure in Chinese H. minnesotensis population indicates a fundamental potential for the establishment of invasive fungal species, which is a prerequisite for biological control agents.

AB - The fungal parasitoid, Hirsutella minnesotensis, is a dominant parasitoid of the soybean cyst nematode, which is a destruction pest of soybean crops. We investigated population structure and parasitism pattern in samples of H. minnesotensis in China to reveal the spreading pattern of this fungal species and the underlying mechanism generating the parasitization-related ability variability in Chinese population. In cross-inoculation experiments using different combinations of H. minnesotensis and soybean cyst nematode samples from China, most H. minnesotensis isolates fitted the criterion for "local versus foreign" parasitism profile, exhibiting local adaptation pattern to the SCN host. However, the genetic analysis of the single nucleotide polymorphisms with clone-corrected samples based on ten DNA fragments in 56 isolates of H. minnesotensis from China revealed that the Chinese H. minnesotensis population was a clonal lineage that underwent a founder event. The results demonstrated that the Chinese H. minnesotensis population had generated parasitization-related ability diversity after a founder event through individual variation or phenotypic plasticity other than local adaptation. The rapid divergence of parasitization-related abilities with simple genetic structure in Chinese H. minnesotensis population indicates a fundamental potential for the establishment of invasive fungal species, which is a prerequisite for biological control agents.

KW - Ecological adaptation

KW - Invasive species

KW - Population bottleneck

KW - Soybean cyst nematode

UR - http://www.scopus.com/inward/record.url?scp=84937935871&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84937935871&partnerID=8YFLogxK

U2 - 10.1016/j.fgb.2015.02.005

DO - 10.1016/j.fgb.2015.02.005

M3 - Article

C2 - 25687934

AN - SCOPUS:84937935871

SN - 1087-1845

VL - 81

SP - 212

EP - 220

JO - Fungal Genetics and Biology

JF - Fungal Genetics and Biology

ER -

Genetic structure and parasitization-related ability divergence of a nematode fungal pathogen Hirsutella minnesotensis following founder effect in China

Abstract

Bibliographical note

Keywords

UN SDGs

Access

OpenUrl availability

Other files and links

Fingerprint

Cite this