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Nibouche S, Costet L, Holt JR, Jacobson A, Pekarcik A, Sadeyen J, Armstrong JS, Peterson GC, McLaren N, Medina RF. Invasion of sorghum in the Americas by a new sugarcane aphid (Melanaphis sacchari) superclone. PLoS One 2018; 13:e0196124. [PMID: 29694435 PMCID: PMC5919042 DOI: 10.1371/journal.pone.0196124] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Accepted: 04/06/2018] [Indexed: 11/18/2022] Open
Abstract
In the United States (US), the sugarcane aphid (SCA) Melanaphis sacchari (Zehnter) (Hemiptera: Aphididae) was introduced in the 1970s, however at that time it was only considered a pest of sugarcane. In 2013, a massive outbreak of M. sacchari occured on sorghum, resulting in significant economic damage to sorghum grown in North America including the US, Mexico, and Puerto Rico. The aim of the present study was to determine if the SCA pest emergence in American sorghum resulted from the introduction of new genotypes. To this end we used microsatellite markers and COI sequencing to compare the genetic diversity of SCA populations collected in the Americas after the 2013 SCA outbreak on sorghum (during 2013–2017) to older samples collected before the pest outbreak (during 2007–2009). Our results show that the SCA outbreak in the Americas and the Caribbean observed since 2013 belong to populations exhibiting low genetic diversity and consisting of a dominant clonal lineage, MLL-F, which colonizes Sorghum spp. and sugarcane. The comparison of MLL-F specimens collected post-2013 with specimens collected in Louisiana in 2007 revealed that both populations are genetically distinct, according to COI sequencing and microsatellite data analyses. Our result suggest that MLL-F is a new invasive genotype introduced into the Americas that has spread rapidly across sorghum growing regions in the US, Mexico, Honduras and the Caribbean. The origin of this introduction is either Africa or Asia, with Asia being the most probable source.
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Affiliation(s)
| | | | - Jocelyn R Holt
- Department of Entomology, Texas A&M University, TAMU MS, Texas, United States of America
| | - Alana Jacobson
- Department of Entomology and Plant Pathology, Auburn University, Auburn, Alabama, United States of America
| | - Adrian Pekarcik
- Department of Entomology and Plant Pathology, Auburn University, Auburn, Alabama, United States of America
| | | | - J Scott Armstrong
- Wheat Peanut and Other Field Crops Research, USDA-ARS, Stillwater, Oklahoma, United States of America
| | - Gary C Peterson
- Texas A&M AgriLife Research and Extension Center, Lubbock, Texas, United States of America
| | - Neal McLaren
- Natural and Agricultural Sciences, University of the Free State, Bloemfontein, South Africa
| | - Raul F Medina
- Department of Entomology, Texas A&M University, TAMU MS, Texas, United States of America
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Popkin M, Piffaretti J, Clamens AL, Qiao GX, Chen J, Vitalis R, Vanlerberghe-Masutti F, Gupta RK, Lamaari M, Langella O, Coeur d'acier A, Jousselin E. Large-scale phylogeographic study of the cosmopolitan aphid pestBrachycaudus helichrysireveals host plant associated lineages that evolved in allopatry. Biol J Linn Soc Lond 2016. [DOI: 10.1111/bij.12869] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Megan Popkin
- INRA - UMR 1062 CBGP (INRA, IRD, CIRAD, Montpellier SupAgro); 755 avenue du Campus Agropolis CS 30016 F-34 988 Montferrier-sur-Lez France
| | - Josephine Piffaretti
- INRA - UMR 1062 CBGP (INRA, IRD, CIRAD, Montpellier SupAgro); 755 avenue du Campus Agropolis CS 30016 F-34 988 Montferrier-sur-Lez France
| | - Anne-Laure Clamens
- INRA - UMR 1062 CBGP (INRA, IRD, CIRAD, Montpellier SupAgro); 755 avenue du Campus Agropolis CS 30016 F-34 988 Montferrier-sur-Lez France
| | - Ge-Xia Qiao
- Key Laboratory of Zoological Systematics and Evolution; Institute of Zoology; Chinese Academy of Sciences; No. 1 Beichen West Road Chaoyang District Beijing 100101 China
| | - Jing Chen
- Key Laboratory of Zoological Systematics and Evolution; Institute of Zoology; Chinese Academy of Sciences; No. 1 Beichen West Road Chaoyang District Beijing 100101 China
| | - Renaud Vitalis
- INRA - UMR 1062 CBGP (INRA, IRD, CIRAD, Montpellier SupAgro); 755 avenue du Campus Agropolis CS 30016 F-34 988 Montferrier-sur-Lez France
| | - Flavie Vanlerberghe-Masutti
- INRA - UMR 1062 CBGP (INRA, IRD, CIRAD, Montpellier SupAgro); 755 avenue du Campus Agropolis CS 30016 F-34 988 Montferrier-sur-Lez France
| | - Rakesh K. Gupta
- Division of Entomology; Faculty of Agriculture; Sher-e-Kashmir University Agricultural & Technology of Jammu; Chatha Jammu 180009 India
| | - Malik Lamaari
- Laboratory of LATPPAM; Department of Agronomy; Institute of Veterinary and Agronomic Sciences; University of Batna; Batna Algeria
| | - Olivier Langella
- CNRS, UMR 0320/UMR 8120 Génétique Végétale; F-91190 Gif-sur-Yvette France
| | - Armelle Coeur d'acier
- INRA - UMR 1062 CBGP (INRA, IRD, CIRAD, Montpellier SupAgro); 755 avenue du Campus Agropolis CS 30016 F-34 988 Montferrier-sur-Lez France
| | - Emmanuelle Jousselin
- INRA - UMR 1062 CBGP (INRA, IRD, CIRAD, Montpellier SupAgro); 755 avenue du Campus Agropolis CS 30016 F-34 988 Montferrier-sur-Lez France
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Gilabert A, Dedryver CA, Stoeckel S, Plantegenest M, Simon JC. Longitudinal clines in the frequency distribution of 'super-clones' in an aphid crop pest. BULLETIN OF ENTOMOLOGICAL RESEARCH 2015; 105:694-703. [PMID: 26278064 DOI: 10.1017/s0007485315000619] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Parthenogenesis is the main mode of reproduction of aphids. Their populations are therefore composed of clones whose frequency distribution varies in space and time. Previous population genetic studies on aphids have highlighted the existence of highly abundant clones ('super-clones'), distributed over large geographic areas and persisting over time. Whether the abundance of 'super-clones' results from their ecological success or from stochastic forces, such as drift and migration, is an open question. Here, we looked for the existence of clines in clonal frequency along a climatic gradient in the cereal aphid Rhopalosiphum padi (Linnaeus, 1758) and examined the possible influence of geographical distance and environmental variables in the buildup and maintenance of such clonal clines. We investigated the spatial distribution of the commonest genotypes of R. padi by sampling populations along an east-west transect in maize fields in the northern half of France in both spring and late summer. Individual aphids were genotyped at several polymorphic loci, allowing the assessment of frequency distributions of multilocus genotypes (MLGs) across the cropping season. We found several MLGs showing longitudinal clines in their frequency distribution in both spring and summer. In particular, two dominant asexual genotypes of R. padi showed inverted geographical clines, which could suggest divergent adaptations to environmental conditions. We concluded that while the distribution of some 'super-clones' of R. padi seems most likely driven by the action of migration and genetic drift, selection could be also involved in the establishment of longitudinal clines of others.
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Affiliation(s)
- A Gilabert
- INRA UMR 1349 IGEPP,Domaine de la Motte,F-35653 Le Rheu,France
| | - C-A Dedryver
- INRA UMR 1349 IGEPP,Domaine de la Motte,F-35653 Le Rheu,France
| | - S Stoeckel
- INRA UMR 1349 IGEPP,Domaine de la Motte,F-35653 Le Rheu,France
| | - M Plantegenest
- Agrocampus-ouest UMR 1349 IGEPP,65 rue de Saint-Brieuc,F-35042 Rennes,France
| | - J-C Simon
- INRA UMR 1349 IGEPP,Domaine de la Motte,F-35653 Le Rheu,France
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Nibouche S, Fartek B, Mississipi S, Delatte H, Reynaud B, Costet L. Low genetic diversity in Melanaphis sacchari aphid populations at the worldwide scale. PLoS One 2014; 9:e106067. [PMID: 25148510 PMCID: PMC4141858 DOI: 10.1371/journal.pone.0106067] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2014] [Accepted: 07/29/2014] [Indexed: 11/24/2022] Open
Abstract
Numerous studies have examined the genetic diversity and genetic structure of invading species, with contrasting results concerning the relative roles of genetic diversity and phenotypic plasticity in the success of introduced populations. Increasing evidence shows that asexual lineages of aphids are able to occupy a wide geographical and ecological range of habitats despite low genetic diversity. The anholocyclic aphid Melanaphis sacchari is a pest of sugarcane and sorghum which originated in the old world, was introduced into the Americas, and is now distributed worldwide. Our purpose was to assess the genetic diversity and structuring of populations of this species according to host and locality. We used 10 microsatellite markers to genotype 1333 individuals (57 samples, 42 localities, 15 countries) collected mainly on sugarcane or sorghum. Five multilocus lineages (MLL) were defined, grouping multilocus genotypes (MLG) differing by only a few mutations or scoring errors. Analysis of a 658 bp sequence of mitochondrial COI gene on 96 individuals revealed five haplotypes, with a mean divergence of only 0.19 %. The distribution of MLL appeared to be strongly influenced by geography but not by host plant. Each of the five MLL grouped individuals from (A) Africa, (B) Australia, (C) South America, the Caribbean and the Indian Ocean including East Africa, (D) USA, and (E) China. The MLL A and C, with a wide geographic distribution, matched the definition of superclone. Among aphids, M. sacchari has one of the lowest known rates of genetic diversity for such a wide geographical distribution.
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Affiliation(s)
| | - Benjamin Fartek
- Cirad, UMR PVBMT, Saint-Pierre, La Réunion, France
- Université de la Réunion, UMR PVBMT, Saint-Pierre, La Réunion, France
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