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

Ecology and Evolution

卷:9

Martin Husemann¹  Min Jee Kim²  Ehsan Sanaei²  Iksoo Kim²  Daniela Atanasova³  Midori Tuda⁴  Teodora B. Toshova⁵  Marjan Seiedy⁶  Michael Rethwisch⁷ 

[1] Centrum für Naturkunde Universität Hamburg Hamburg Germany;

[2] Department of Applied Biology College of Agriculture and Life Science Chonnam National University Gwnagju Korea;

[3] Department of Entomology Faculty of Plant Protection and Agroecology Agricultural University Plovdiv Bulgaria;

[4] Faculty of Agriculture Institute of Biological Control Kyushu University Fukuoka Japan;

[5] Institute of Biodiversity and Ecosystem Research Bulgarian Academy of Sciences Sofia Bulgaria;

[6] School of Biology and Center of Excellence in Phylogeny of Living Organisms College of Science University of Tehran Tehran Iran;

[7] University of California Cooperative Extension Blythe CA USA;

关键词: biogeography;    genetic diversity;    Hypera postica;    invasive population;    mitochondrial lineage;    Wolbachia;   

DOI  :  10.1002/ece3.5474

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown