Global genetic diversity, lineage distribution, and Wolbachia infection of the alfalfa weevil Hypera postica (Coleoptera: Curculionidae)

Ehsan Sanaei, Martin Husemann, Marjan Seiedy, Michael Rethwisch, Midori Tuda, Teodora B. Toshova, Min Jee Kim, Daniela Atanasova, Iksoo Kim

Research output: Contribution to journalArticle

Abstract

The alfalfa weevil (Hypera postica) is a well-known example of a worldwide-distributed pest with high genetic variation. Based on the mitochondrial genes, the alfalfa weevil clusters into two main mitochondrial lineages. However, there is no clear picture of the global diversity and distribution of these lineages; neither the drivers of its diversification are known. However, it appears likely that historic demographic events including founder effects played a role. In addition, Wolbachia, a widespread intracellular parasite/symbiont, likely played an important role in the evolution of the species. Wolbachia infection so far was only detected in the Western lineage of H. postica with no information on the infecting strain, its frequency, and its consequences on the genetic diversity of the host. We here used a combination of mitochondrial and nuclear sequences of the host and sequence information on Wolbachia to document the distribution of strains and the degree of infection. The Eastern lineage has a higher genetic diversity and is found in the Mediterranean, the Middle East, Eastern Europe, and eastern America, whereas the less diverse Western lineage is found in Central Europe and the western America. Both lineages are infected with the same common strain of Wolbachia belonging to Supergroup B. Based on neutrality tests, selection tests, and the current distribution and diversification of Wolbachia in H. postica, we suggested the Wolbachia infection did not shape genetic diversity of the host. The introduced populations in the United States are generally genetically less diverse, which is in line with founder effects.

Original languageEnglish
Pages (from-to)9546-9563
Number of pages18
JournalEcology and Evolution
Volume9
Issue number17
DOIs
Publication statusPublished - Sep 1 2019

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Hypera postica
Wolbachia
alfalfa
Curculionidae
founder effect
Coleoptera
genetic variation
infection
symbiont
parasite
gene
Eastern European region
Middle East
Central European region
symbionts
distribution
genetic diversity
demographic statistics
testing
pests

All Science Journal Classification (ASJC) codes

  • Ecology, Evolution, Behavior and Systematics
  • Ecology
  • Nature and Landscape Conservation

Cite this

Global genetic diversity, lineage distribution, and Wolbachia infection of the alfalfa weevil Hypera postica (Coleoptera : Curculionidae). / Sanaei, Ehsan; Husemann, Martin; Seiedy, Marjan; Rethwisch, Michael; Tuda, Midori; Toshova, Teodora B.; Kim, Min Jee; Atanasova, Daniela; Kim, Iksoo.

In: Ecology and Evolution, Vol. 9, No. 17, 01.09.2019, p. 9546-9563.

Research output: Contribution to journalArticle

Sanaei, E, Husemann, M, Seiedy, M, Rethwisch, M, Tuda, M, Toshova, TB, Kim, MJ, Atanasova, D & Kim, I 2019, 'Global genetic diversity, lineage distribution, and Wolbachia infection of the alfalfa weevil Hypera postica (Coleoptera: Curculionidae)', Ecology and Evolution, vol. 9, no. 17, pp. 9546-9563. https://doi.org/10.1002/ece3.5474
Sanaei, Ehsan ; Husemann, Martin ; Seiedy, Marjan ; Rethwisch, Michael ; Tuda, Midori ; Toshova, Teodora B. ; Kim, Min Jee ; Atanasova, Daniela ; Kim, Iksoo. / Global genetic diversity, lineage distribution, and Wolbachia infection of the alfalfa weevil Hypera postica (Coleoptera : Curculionidae). In: Ecology and Evolution. 2019 ; Vol. 9, No. 17. pp. 9546-9563.
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