Intraspecific phytochemical variation shapes community and population structure for specialist caterpillars.

Autor: Glassmire AE; Ecology, Evolution, and Conservation Biology, University of Nevada, 1664 N. Virginia St, Reno, NV, 89557, USA., Jeffrey CS; Ecology, Evolution, and Conservation Biology, University of Nevada, 1664 N. Virginia St, Reno, NV, 89557, USA.; Department of Chemistry, University of Nevada, 1664 N. Virginia St, Reno, NV, 89557, USA., Forister ML; Ecology, Evolution, and Conservation Biology, University of Nevada, 1664 N. Virginia St, Reno, NV, 89557, USA., Parchman TL; Ecology, Evolution, and Conservation Biology, University of Nevada, 1664 N. Virginia St, Reno, NV, 89557, USA., Nice CC; Department of Biology, Texas State University, 601 University Dr., San Marcos, TX, 78666, USA., Jahner JP; Ecology, Evolution, and Conservation Biology, University of Nevada, 1664 N. Virginia St, Reno, NV, 89557, USA., Wilson JS; Department of Biology, Utah State University Tooele, 1021 W Vine St, Toole, UT, 84074, USA., Walla TR; Department of Biology, Colorado Mesa University, 1100 N. Ave, Grand Junction, CO, 81501, USA.; Museo Ecuatoriano de Ciencias Naturales del Instituto Nacional de Biodiversidad Ecuador, Rumipamba 341 y Av. Shyris., Quito, Ecuador., Richards LA; Ecology, Evolution, and Conservation Biology, University of Nevada, 1664 N. Virginia St, Reno, NV, 89557, USA., Smilanich AM; Ecology, Evolution, and Conservation Biology, University of Nevada, 1664 N. Virginia St, Reno, NV, 89557, USA., Leonard MD; Department of Chemistry, University of Nevada, 1664 N. Virginia St, Reno, NV, 89557, USA., Morrison CR; Ecology, Evolution, and Conservation Biology, University of Nevada, 1664 N. Virginia St, Reno, NV, 89557, USA., Simbaña W; Yanayacu Biological Station, Cosanga, Napo Province, Ecuador., Salagaje LA; Yanayacu Biological Station, Cosanga, Napo Province, Ecuador., Dodson CD; Ecology, Evolution, and Conservation Biology, University of Nevada, 1664 N. Virginia St, Reno, NV, 89557, USA.; Department of Chemistry, University of Nevada, 1664 N. Virginia St, Reno, NV, 89557, USA., Miller JS; Ecology, Evolution, and Conservation Biology, University of Nevada, 1664 N. Virginia St, Reno, NV, 89557, USA., Tepe EJ; Department of Biological Sciences, University of Cincinnati, 318 College Dr, Cincinnati, OH, 45221, USA., Villamarin-Cortez S; Museo Ecuatoriano de Ciencias Naturales del Instituto Nacional de Biodiversidad Ecuador, Rumipamba 341 y Av. Shyris., Quito, Ecuador., Dyer LA; Ecology, Evolution, and Conservation Biology, University of Nevada, 1664 N. Virginia St, Reno, NV, 89557, USA.; Museo Ecuatoriano de Ciencias Naturales del Instituto Nacional de Biodiversidad Ecuador, Rumipamba 341 y Av. Shyris., Quito, Ecuador.
Jazyk: angličtina
Zdroj: The New phytologist [New Phytol] 2016 Oct; Vol. 212 (1), pp. 208-19. Date of Electronic Publication: 2016 Jun 09.
DOI: 10.1111/nph.14038
Abstrakt: Chemically mediated plant-herbivore interactions contribute to the diversity of terrestrial communities and the diversification of plants and insects. While our understanding of the processes affecting community structure and evolutionary diversification has grown, few studies have investigated how trait variation shapes genetic and species diversity simultaneously in a tropical ecosystem. We investigated secondary metabolite variation among subpopulations of a single plant species, Piper kelleyi (Piperaceae), using high-performance liquid chromatography (HPLC), to understand associations between plant phytochemistry and host-specialized caterpillars in the genus Eois (Geometridae: Larentiinae) and associated parasitoid wasps and flies. In addition, we used a genotyping-by-sequencing approach to examine the genetic structure of one abundant caterpillar species, Eois encina, in relation to host phytochemical variation. We found substantive concentration differences among three major secondary metabolites, and these differences in chemistry predicted caterpillar and parasitoid community structure among host plant populations. Furthermore, E. encina populations located at high elevations were genetically different from other populations. They fed on plants containing high concentrations of prenylated benzoic acid. Thus, phytochemistry potentially shapes caterpillar and wasp community composition and geographic variation in species interactions, both of which can contribute to diversification of plants and insects.
(© 2016 The Authors. New Phytologist © 2016 New Phytologist Trust.)
Databáze: MEDLINE
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