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Preuss S, Berggren Å, Cassel-Lundhagen A. Genetic patterns reveal an old introduction event and dispersal limitations despite rapid distribution expansion. Biol Invasions 2015. [DOI: 10.1007/s10530-015-0915-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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52
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Karsten M, Jansen van Vuuren B, Addison P, Terblanche JS. Deconstructing intercontinental invasion pathway hypotheses of the Mediterranean fruit fly (Ceratitis capitata) using a Bayesian inference approach: are port interceptions and quarantine protocols successfully preventing new invasions? DIVERS DISTRIB 2015. [DOI: 10.1111/ddi.12333] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Affiliation(s)
- Minette Karsten
- Department of Conservation Ecology and Entomology; Stellenbosch University; Stellenbosch South Africa
| | - Bettine Jansen van Vuuren
- Centre for Invasion Biology; Department of Zoology; University of Johannesburg; Johannesburg South Africa
| | - Pia Addison
- Department of Conservation Ecology and Entomology; Stellenbosch University; Stellenbosch South Africa
| | - John S. Terblanche
- Centre for Invasion Biology; Department of Conservation Ecology and Entomology; Stellenbosch University; Stellenbosch South Africa
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53
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Silva-Brandão KL, Santos TV, Cônsoli FL, Omoto C. Genetic Diversity and Structure of Brazilian Populations of Diatraea saccharalis (Lepidoptera: Crambidae): Implications for Pest Management. JOURNAL OF ECONOMIC ENTOMOLOGY 2015; 108:307-316. [PMID: 26470135 DOI: 10.1093/jee/tou040] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2014] [Accepted: 11/21/2014] [Indexed: 06/05/2023]
Abstract
The sugarcane borer, Diatraea saccharalis (F.), is the main pest of sugarcane in Brazil. Genetic variability and gene flow among 13 Brazilian populations of the species were evaluated based on mitochondrial DNA sequences to estimate the exchange of genetic information within and among populations. We found high genetic structure among sampled localities (ΦST=0.50923), and pairwise genetic distances were significantly correlated to geographic distances. Demographic analysis and genealogical network of mitochondrial sequences indicate population growth and admixture of D. saccharalis populations, events likely related to the sequential expansion of the corn and sugarcane crops in Brazil. The implications of these findings for pest management are discussed.
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Affiliation(s)
- Karina L Silva-Brandão
- Departamento de Entomologia e Acarologia, Escola Superior de Agricultura "Luiz de Queiroz", Universidade de São Paulo - ESALQ/USP, Av. Pádua Dias, 11. Piracicaba, SP 13418-900, Brazil. Centro de Energia Nuclear na Agricultura, Campus "Luiz de Queiroz", Universidade de São Paulo - CENA/USP, Av. Centenário, 303. Piracicaba, SP 13400-970, Brazil.
| | - Thiago V Santos
- Departamento de Entomologia e Acarologia, Escola Superior de Agricultura "Luiz de Queiroz", Universidade de São Paulo - ESALQ/USP, Av. Pádua Dias, 11. Piracicaba, SP 13418-900, Brazil
| | - Fernando L Cônsoli
- Departamento de Entomologia e Acarologia, Escola Superior de Agricultura "Luiz de Queiroz", Universidade de São Paulo - ESALQ/USP, Av. Pádua Dias, 11. Piracicaba, SP 13418-900, Brazil
| | - Celso Omoto
- Departamento de Entomologia e Acarologia, Escola Superior de Agricultura "Luiz de Queiroz", Universidade de São Paulo - ESALQ/USP, Av. Pádua Dias, 11. Piracicaba, SP 13418-900, Brazil
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Gotzek D, Axen HJ, Suarez AV, Helms Cahan S, Shoemaker D. Global invasion history of the tropical fire ant: a stowaway on the first global trade routes. Mol Ecol 2015; 24:374-88. [DOI: 10.1111/mec.13040] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2014] [Revised: 11/24/2014] [Accepted: 12/06/2014] [Indexed: 01/09/2023]
Affiliation(s)
- Dietrich Gotzek
- Department of Animal Biology and Department of Entomology; University of Illinois at Urbana-Champaign; Urbana IL 61801 USA
- Department of Entomology; National Museum of Natural History; Smithsonian Institution; Washington DC 20013 USA
| | - Heather J. Axen
- Department of Biology; University of Vermont; Burlington VT 05405 USA
| | - Andrew V. Suarez
- Department of Animal Biology and Department of Entomology; University of Illinois at Urbana-Champaign; Urbana IL 61801 USA
| | - Sara Helms Cahan
- Department of Biology; University of Vermont; Burlington VT 05405 USA
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56
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Developing conversed microsatellite markers and their implications in evolutionary analysis of the Bemisia tabaci complex. Sci Rep 2014; 4:6351. [PMID: 25220501 PMCID: PMC4163675 DOI: 10.1038/srep06351] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2014] [Accepted: 08/22/2014] [Indexed: 12/27/2022] Open
Abstract
The study of population genetics among the Bemisia tabaci complex is limited due to the lack of conserved molecular markers. In this study, 358, 433 and 322 new polynucleotide microsatellites are separately identified from the transcriptome sequences of three cryptic species of the B. tabaci complex. The cross species transferability of 57 microsatellites was then experimentally validated. The results indicate that these markers are conserved and have high inter-taxon transferability. Thirteen markers were employed to assess the genetic relationships among six cryptic species of the B. tabaci complex. To our surprise, the inferred phylogeny was consistent with that of mitochondrial COI sequences, indicating that microsatellites have the potential to distinguish species of the B. tabaci complex. Our results demonstrate that development of microsatellites from transcriptome data is a fast and cost-effective approach. These markers can be used to analyze the population genetics and evolutionary patterns of the B. tabaci complex.
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57
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Gao RR, Zhang WP, Wu HT, Zhang RM, Zhou HX, Pan HP, Zhang YJ, Brown JK, Chu D. Population structure of the greenhouse whitefly, Trialeurodes vaporariorum (Westwood), an invasive species from the Americas, 60 years after invading China. Int J Mol Sci 2014; 15:13514-28. [PMID: 25093716 PMCID: PMC4159808 DOI: 10.3390/ijms150813514] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2014] [Revised: 06/16/2014] [Accepted: 07/21/2014] [Indexed: 11/24/2022] Open
Abstract
Though the greenhouse whitefly, Trialeurodes vaporariorum (Westwood) (Hemiptera: Aleyrodidae) was introduced into China more than 60 years ago, the genetic diversity and structure of this exotic insect pest and virus vector have not been studied. To investigate the population genetic characteristics of this invasive species and to identify potential invasion routes, the genetic diversity and population structure of 17 collections of T. vaporariorum from nine provinces in China were analyzed using seven microsatellite loci. The results of the analyses indicated that the genetic diversity for the populations examined from the four provinces: Jilin, Ningxia, Guizhou and Qinghai, was lower than the genetic diversity of populations from the five provinces: Yunnan, Shandong, Shanxi, Liaoning, and Gansu. The T. vaporariorum populations analyzed in this study grouped as two distinct genetic clusters based on the analysis using STRUCTURE, whereas, 8 clusters were identified based on the BAPS analysis. Of the 136 genetic distance (Fst) values, 128 (94%) were associated with a significant exact test. However, there was no significant relationship between Fst and geographical distance. These results demonstrate that populations of T. vaporariorum in China exhibit significant genetic differentiation, indicating the likelihood that multiple introductions of T. vaporariorum into China have occurred. Also, the populations collected from the provinces of Jilin, Ningxia, Guizhou and Qinghai appear to represent secondary introductions originating from other Chinese provinces.
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Affiliation(s)
- Rui-Rui Gao
- Key Lab of Integrated Crop Pest Management of Shandong Province, College of Agronomy and Plant Protection, Qingdao Agricultural University, Qingdao 266109, China.
| | - Wen-Ping Zhang
- Key Lab of Integrated Crop Pest Management of Shandong Province, College of Agronomy and Plant Protection, Qingdao Agricultural University, Qingdao 266109, China.
| | - Huai-Tong Wu
- Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
| | - Rui-Ming Zhang
- Key Lab of Integrated Crop Pest Management of Shandong Province, College of Agronomy and Plant Protection, Qingdao Agricultural University, Qingdao 266109, China.
| | - Hong-Xu Zhou
- Key Lab of Integrated Crop Pest Management of Shandong Province, College of Agronomy and Plant Protection, Qingdao Agricultural University, Qingdao 266109, China.
| | - Hui-Peng Pan
- Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
| | - You-Jun Zhang
- Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
| | - Judith K Brown
- School of Plant Sciences, University of Arizona, Tucson, AZ 85721, USA.
| | - Dong Chu
- Key Lab of Integrated Crop Pest Management of Shandong Province, College of Agronomy and Plant Protection, Qingdao Agricultural University, Qingdao 266109, China.
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58
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Evidence for rapid spatiotemporal changes in genetic structure of an alien whitefly during initial invasion. Sci Rep 2014; 4:4396. [PMID: 24637851 PMCID: PMC3957146 DOI: 10.1038/srep04396] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2013] [Accepted: 02/24/2014] [Indexed: 11/08/2022] Open
Abstract
The sweetpotato whitefly Bemisia tabaci Q species is a recent invader and important pest of agricultural crops in China. This research tested the hypothesis that the Q populations that establish in agricultural fields in northern China each year are derived from multiple secondary introductions and/or local populations that overwinter in greenhouses (the pest cannot survive winters in the field in northern China). Here, we report the evidence that the Q populations in agricultural fields mainly derive from multiple secondary introductions. In addition, the common use of greenhouses during the winter in certain locations in northern China helps increase the genetic diversity and the genetic structure of the pest. The genetic structure information generated from this long-term and large-scale field analysis increases our understanding of B. tabaci Q as an invasive pest and has important implications for B. tabaci Q management.
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59
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Zheng Y, Peng X, Liu G, Pan H, Dorn S, Chen M. High genetic diversity and structured populations of the oriental fruit moth in its range of origin. PLoS One 2013; 8:e78476. [PMID: 24265692 PMCID: PMC3821535 DOI: 10.1371/journal.pone.0078476] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2013] [Accepted: 09/12/2013] [Indexed: 11/20/2022] Open
Abstract
The oriental fruit moth Grapholita ( = Cydia) molesta is a key fruit pest globally. Despite its economic importance, little is known about its population genetics in its putative native range that includes China. We used five polymorphic microsatellite loci and two mitochondrial gene sequences to characterize the population genetic diversity and genetic structure of G. molesta from nine sublocations in three regions of a major fruit growing area of China. Larval samples were collected throughout the season from peach, and in late season, after host switch by the moth to pome fruit, also from apple and pear. We found high numbers of microsatellite alleles and mitochondrial DNA haplotypes in all regions, together with a high number of private alleles and of haplotypes at all sublocations, providing strong evidence that the sampled area belongs to the origin of this species. Samples collected from peach at all sublocations were geographically structured, and a significant albeit weak pattern of isolation-by-distance was found among populations, likely reflecting the low flight capacity of this moth. Interestingly, populations sampled from apple and pear in the late season showed a structure differing from that of populations sampled from peach throughout the season, indicating a selective host switch of a certain part of the population only. The recently detected various olfactory genotypes in G. molesta may underly this selective host switch. These genetic data yield, for the first time, an understanding of population dynamics of G. molesta in its native range, and of a selective host switch from peach to pome fruit, which may have a broad applicability to other global fruit production areas for designing suitable pest management strategies.
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Affiliation(s)
- Yan Zheng
- College of Plant Protection, Northwest A&F University, Yangling, China
| | - Xiong Peng
- College of Plant Protection, Northwest A&F University, Yangling, China
| | - Gaoming Liu
- College of Plant Protection, Northwest A&F University, Yangling, China
| | - Hongyan Pan
- College of Plant Protection, Northwest A&F University, Yangling, China
| | - Silvia Dorn
- ETH Zurich, Applied Entomology, Zurich, Switzerland
| | - Maohua Chen
- College of Plant Protection, Northwest A&F University, Yangling, China
- Key Laboratory of Crop Pest Integrated Pest Management on the Loess Plateau of Ministry of Agriculture, Yangling, China
- * E-mail:
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