Diversity and Host Plant-Use in North AmericanPhytomyzaHolly Leafminers (Diptera: Agromyzidae): Colonization, Divergence, and Specificity in a Host-Associated Radiation
| Autor: | Julie B. Hebert, Frode Jacobsen, Matthew L. Lewis, Sonja J. Scheffer |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
0301 basic medicine biology Host (biology) media_common.quotation_subject fungi Zoology Aquifoliaceae biology.organism_classification 010603 evolutionary biology 01 natural sciences Divergence 03 medical and health sciences Speciation 030104 developmental biology Agromyzidae Insect Science Genetic structure Colonization media_common |
| Zdroj: | Annals of the Entomological Society of America. 114:59-69 |
| ISSN: | 1938-2901 0013-8746 |
| DOI: | 10.1093/aesa/saaa034 |
| Popis: | Insects that feed on plants are widely used for studies of host-plant-associated speciation due to their diversity and tractability. The value of these studies necessarily depends upon an accurate understanding of the diet of the focal insects. In North America, the 12 Phytomyza Fallén (Diptera: Agromyzidae) leafmining fly species feeding on hollies (Ilex spp. (Aquifoliaceae: Ilex)) initially appeared to be primarily a host-plant-associated radiation of largely monophagous species. However, our increased collecting efforts found that a majority of the morphospecies are oligophagous, feeding on multiple Ilex species. Patterns of host-associations suggest that colonization of new hosts followed by host-associated speciation may be an important feature of diversification. Analyses of mitochondrial COI data in three oligophagous species found evidence of host-associated genetic structure consistent with processes of host-associated divergence. However, in one of these species, evidence of geographic divergence as well as host-associated divergence was detected, illustrating complexity in factors relating to speciation and host-use evolution in this radiation of leafmining flies. |
| Databáze: | OpenAIRE |
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