Possible Source Populations of the White-backed Planthopper in the Greater Mekong Subregion Revealed by Mitochondrial DNA Analysis

Li, Xiangyong; Chu, Dong; Yin, Yanni; Zhao, Xueqing; Chen, Aidong; Khay, Sathya; Douangboupha, Bounneuang; Kyaw, Mu Mu; Kongchuensin, Manita; Ngo, Vien Vinh; Nguyen, Chung Huy

doi:10.1038/srep39167

Cited by 14 publications

(20 citation statements)

References 38 publications

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“…Only two dominant COI haplotypes widely exist in all populations suggesting a high-level gene ow among them. Among the 11 COI haplotypes identi ed, four haplotypes, including the two dominant haplotypes, were also found by previous study [8]. Our study results demonstrate that the haplotype diversity was lower in Shandong Province than that in the GMS, which may be a consequence of founder events during migration.…”

Section: Genetic Diversity Of Wbphsupporting

confidence: 75%

Immigration of Sogatella Furcifera from the Greater Mekong Subregion into Northern China Revealed by 2b-RAD Sequencing

Yang¹,

Dong²,

Chen³

et al. 2020

Preprint

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Background The white-backed planthopper (WBPH), Sogatella furcifera (Horváth) (Hemiptera, Delphacidae), is a migratory pest of rice in Asia. Shandong Province, in northern China, is located on the migration pathway of WBPH between southern and northeast China. The potential sources of WBPH in northern China are poorly understood. We studied the sources of WBPH in Shandong Province by determining the population genetic structure of WBPH in 18 sites distributed in Shandong and in six regions of the Greater Mekong Subregion (GMS). We used mitochondrial gene and single-nucleotide polymorphism (SNP) markers (2b-RAD sequencing) for analysis.Results All of the WBPH populations studied in the seven regions had low genetic diversity. Pairwise FST values ranged from − 0.061 to 0.285, while FST based on SNP data ranged from − 0.007 to 0.009. These two molecular markers revealed that 4.40% (mtDNA) and 0.19% (SNP) genetic variation could be explained by the interpopulation variation, while the rest came from intrapopulation variation. The populations in the seven geographic regions comprised four hypothetical genetic clusters (K = 4) not associated with geographic location. Eighty-four of 129 individuals distributed across the given area were designated as recent migrants or of admixed ancestry. Although the substantial migration presented, a weak but significant correlation between genetic and geographic distances was found (r = 0.083, P = 0.004).Conclusion GMS was the main source of WBPH in Shandong, while other source populations may also exist. The genetic structure of WBPH is shaped by both migration and geographic barriers. These results help clarify the migration route and the source of WBPH in northern China.

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Section: Genetic Diversity Of Wbphsupporting

confidence: 75%

Immigration of Sogatella Furcifera from the Greater Mekong Subregion into Northern China Revealed by 2b-RAD Sequencing

Yang¹,

Dong²,

Chen³

et al. 2020

Preprint

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“…For example, most insects have a high dispersal ability and thus high gene flow between different populations. This is especially true in migratory insects (Li et al, ; Yin et al, ) and is obviously different from the empirical analysis used on plant populations. In addition, many other factors including demographic history, intrinsic life‐history traits, and overall population characteristics should also be considered (Nazareno et al, ).…”

Section: Introductionmentioning

confidence: 94%

Minimum sample sizes for invasion genomics: Empirical investigation in an invasive whitefly

et al. 2019

Ecology and Evolution

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Analysis of population genetics provides insights into the evolutionary processes, among which the sample size choice is per se a crucial issue in the analysis. Genome‐wide high‐throughput techniques based on RADseq have been increasingly used in studies on the population genomics of invasive species. However, there is little information available regarding optimal sample sizes for analyzing population genomics of invasive species. In this study, we first use type IIB endonucleases restriction site‐associated DNA (2b‐RAD) to mine thousands of single nucleotide polymorphisms (SNPs) for native and introduced populations in Q1 clade (SPB and 17JN) and Q2 clade (ISQ and UAS0601) of the whitefly, Bemisia tabaci (Gennadius) MED (also known as B. tabaci biotype Q). Then, we used resampling techniques to create simulated populations with a random subset of individuals and 3,000 SNPs to determine how many individuals should be sampled for accurate estimates of intra‐ and interpopulation genetic diversity. We calculated the intrapopulation genetic diversity parameters (unbiased expected heterozygosity, observed heterozygosity, and the number of effect alleles) and pairwise genetic differentiation FST; finally, an ad hoc statistic, ΔK, was used to determine the optimal value. Our results showed that a sample size greater than four individuals (n ≥ 4) has little impact on estimates of genetic diversity within whitefly populations; moreover, precise estimate of FST can be easily achieved at a very small simple size (n = 3 or 4). Our results will provide in‐depth understanding of the optimization of sampling schemes in population genomics of invasive species.

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“…The immigration sources into Yunnan Province during April to early May were estimated to be mainly from Myanmar, while the mid-May immigrations originate from northern Vietnam 6 , 12 . Recently, we have used the mitochondrial cytochrome oxidase I (mtCOI) marker to determine the sources and patterns of the WBPH in the GMS 13 , demonstrating that the potential emigration of the WBPH from the GMS consists of three possible major routes. Those results not only confirmed that the immigration sources of the WBPH into China’s Yunnan Province were from Myanmar, Vietnam, and Laos 6 , 12 , 14 , but also indicated that Cambodia was a likely additional migration source.…”

Section: Introductionmentioning

confidence: 99%

Extensive gene flow of white-backed planthopper in the Greater Mekong Subregion as revealed by microsatellite markers

Yin

Chu

et al. 2017

Sci Rep

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The white-backed planthopper (WBPH), Sogatella furcifera (Horváth), is a destructive pest of rice in the Greater Mekong Subregion (GMS) countries including Cambodia, Laos, Myanmar, Thailand, Vietnam, and China’s Yunnan Province. Our previous study not only confirmed the immigration sources of the WBPH in China’s Yunnan Province were from Myanmar, Vietnam, and Laos, but also indicated that Cambodia was likely an additional migration source. To further clarify the migration sources and patterns of the WBPH in the GMS, we investigated the genetic structure of 42 WBPH populations using microsatellite loci markers. The analysis of genetic diversity, heterozygosity deficit, and heterozygosity excess based on the nuclear markers suggest that there is extensive gene flow between the 42 sampled populations from the GMS. The genetic structure confirmed the immigration sources of WBPH as revealed by mitochondrial markers and trajectory analyses methods in previous studies. These findings will aid in the sustainable regional management of this insect pest in the GMS.

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Possible Source Populations of the White-backed Planthopper in the Greater Mekong Subregion Revealed by Mitochondrial DNA Analysis

Cited by 14 publications

References 38 publications

Immigration of Sogatella Furcifera from the Greater Mekong Subregion into Northern China Revealed by 2b-RAD Sequencing

Immigration of Sogatella Furcifera from the Greater Mekong Subregion into Northern China Revealed by 2b-RAD Sequencing

Minimum sample sizes for invasion genomics: Empirical investigation in an invasive whitefly

Extensive gene flow of white-backed planthopper in the Greater Mekong Subregion as revealed by microsatellite markers

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