Meloidogyne graminicola Population Structure in China Suggests a South-to-North Expansion
文献类型: 外文期刊
第一作者: Liu, Mao-Yan
作者: Liu, Mao-Yan;Shao, Hu-Die;Peng, De-Liang;Yu, Jing-Wen;Jia, Jian-Ping;Peng, Huan;Sulaiman, Abdulsalam;Yu, Xi-Yue;Huang, Wen-Kun;Liu, Mao-Yan;Wu, Yang-Yan;Shao, Hu-Die;Li, Chuan-Ren;Li, Cai-Hong
作者机构:
关键词: Meloidogyne graminicola; mitochondrial COI; pathogen diversity; population structure; rice
期刊名称:PLANT DISEASE ( 影响因子:4.5; 五年影响因子:5.0 )
ISSN: 0191-2917
年卷期: 2023 年 107 卷 7 期
页码:
收录情况: SCI
摘要: The distribution range of root-knot nematode Meloidogyne graminicola is rapidly expanding, posing a severe threat to rice production. In this study, the sequences of cytochrome oxidase subunit I (COI) genes of rice M. graminicola populations from all reported provinces in China were amplified and sequenced by PCR. The distribution pattern and phylogenetic tree showed that all 54 M. graminicola populations in China have distinct geographical distribution characteristics; specifically, cluster 1 (southern China), cluster 2 (central south and southwest China), and cluster 3 (central and eastern China). The high haplotype diversity (Hd = 0.646) and low nucleotide diversity (& pi; = 0.00682), combined with the negative value of Tajima's D (-1.252) and Fu's Fs (-3.06764), suggested that all nematode populations were expanding. The existence of high genetic differentiation (Fst = 0.5933) and low gene flow (Nm = 0.3333) indicated that there was a block of gene exchange between most populations. Mutation accumulation with population expansion might be directly responsible for the high genetic differentiation; therefore, the tested nematode population showed high within-group genetic variation (96.30%). The haplotype Hap8 was located at the bottom of the network topology, with the widest distribution and the highest frequency (59.26%), indicating that it was the ancestral haplotype. The populations in cluster 3 were newly invasive according to the lowest frequency of occurrence of Hap8, the highest number of endemic haplotypes, and the highest total haplotype frequency (60%). In contrast, cluster 1 having the highest genetic diversity (Hd = 0.772, & pi; = 0.01127) indicated that it was the most primitive. Interestingly, the highest gene flow (Nm > 1), lowest genetic differentiation (Fst & LE; 0.33), and closest genetic distance (0.000) only occurred between the Guangdong/Hainan population and others, which suggested that there might be channels for gene exchange between them and that long-distance dispersal occurred. This suggestion is further confirmed by the weak correlation between genetic distance and geographical distance. Based on these data, a hypothesis can be drawn that M. graminicola populations in China were spreading from south to north, specifically from Guangdong and Hainan Provinces to other regions. Natural selection (including anthropogenic) and genetic drift were the main drivers of their evolution. Coincidentally, this hypothesis was consistent with the gradual warming trend and the chronological order of reporting these populations. The main factors influencing current M. graminicola population expansion and distribution patterns might be geography, climate, long-distance seedling transport, interregional operations of agricultural machinery, and rotation mode. It reminds human beings of the necessity to be vigilant about preventing nematode disease according to local conditions all year round.
分类号:
- 相关文献
作者其他论文 更多>>
-
Diagnosis and characterization of the ribosomal DNA-ITS of potato rot nematode (Ditylenchus destructor) populations from Chinese medicinal herbs
作者:Ni, Chun-hui;Han, Bian;Li, Wen-hao;Shi, Ming-ming;Li, Hui-xia;Liu, Yong-gang;Munawar, Maria;Liu, Shi-ming;Peng, De-liang
关键词:
-
Current advances in the identification of plant nematode diseases: From lab assays to in-field diagnostics
作者:Shao, Hudie;Peng, Deliang;Huang, Wenkun;Kong, Ling-an;Peng, Huan;Shao, Hudie;Zhang, Pan;Li, Chuanren;Liu, Enliang
关键词:plant parasitic nematodes; diagnosis; PCR; Isothermal amplification; remote sensing; field detection
-
Association of Globodera rostochiensis (Nematoda) with Stunted and Chlorotic Potato Plants in Yunnan and Sichuan Provinces in China
作者:Jiang, Ru;Li, Yunqing;Huang, Liqiang;Liu, Shiming;Huang, Wenkun;Kong, Lin'an;Peng, Huan;Peng, Deliang;Liu, Hui;Feng, Xiaodong;Long, Haibo;Hu, Xianqi;Ge, Jianjun;Bian, Yong;Li, Xingyue;Shao, Baolin;Xu, Chong
关键词:cyst nematode; field crops; mitochondrial sequences; morphological characteristics; nematodes; pathogen detection; potato; rDNA sequences
-
Recombinase Polymerase Amplification Coupled with CRISPR-Cas12a Technology for Rapid and Highly Sensitive Detection of Heterodera avenae and Heterodera filipjevi
作者:Shao, Hudie;Jian, Jinzhuo;Peng, Deliang;Yao, Ke;Abdulsalam, Sulaiman;Huang, Wenkun;Kong, Lingan;Peng, Huan;Shao, Hudie;Li, Chuanren;Yao, Ke;Abdulsalam, Sulaiman
关键词:cereals and grains; CRISPR; Cas12a; field crops; Heterodera avenae; Heterodera filipjevi; nematodes; pathogen detection; recombinase polymerase amplification (RPA)
-
LC/MS- and GC/MS-based metabolomic profiling to determine changes in flavor quality and bioactive components of Phlebopus portentosus under low-temperature storage
作者:Li, Xiao-Bei;Hu, Chen-Menghui;Li, Cai-Hong;Tan, Qi;Bao, Da-Peng;Shang, Jun-Jun;Yang, Rui-Heng;Ji, Guang-Yan;Luo, Shun-Zhen;Cao, Yang;Ji, Kai-Ping
关键词:LC; MS; GC; Phlebopus portentosus; nutritional changes; geosmin
-
Population genetics of the cereal cyst nematode Heterodera avenae reveal geographical segregation and host adaptation
作者:Shao, Hudie;Jiang, Ru;Liu, Shiming;Huang, Wenkun;Kong, Ling-an;Peng, Deliang;Peng, Huan;Shao, Hudie;Li, Chuanren;Zhu, Linfeng;Li, Zhiqiang;Peng, Deliang;Peng, Huan
关键词:Cereal cyst nematode; Distribution; Haplotype; Geographic barrier; Host adaptation
-
Self-Assembled Nanonematicide Induces Adverse Effects on Oxidative Stress, Succinate Dehydrogenase Activity, and ATP Generation
作者:Peng, Huan;Jian, Jinzhuo;Huang, Wenkun;Kong, Lingan;Peng, Deliang;Peng, Huan;Long, Haibo;Jiang, Qinhong;Shen, Jie;Yan, Shuo;Jiang, Qinhong;Shen, Jie;Yan, Shuo;Yin, Meizhen;Su, Xiaofeng
关键词:ATP generation; drug delivery; nanocarrier; nanonematicide; SDH activity