A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä
Simultaneous inbreeding modifies inbreeding depression in a plant-herbivore interaction
Tekijät: Kalske A, Mutikainen P, Muola A, Scheepens JF, Laukkanen L, Salminen JP, Leimu R
Kustantaja: WILEY-BLACKWELL
Julkaisuvuosi: 2014
Journal: Ecology Letters
Tietokannassa oleva lehden nimi: ECOLOGY LETTERS
Lehden akronyymi: ECOL LETT
Vuosikerta: 17
Numero: 2
Aloitussivu: 229
Lopetussivu: 238
Sivujen määrä: 10
ISSN: 1461-023X
DOI: https://doi.org/10.1111/ele.12223
Tiivistelmä
Because inbreeding is common in natural populations of plants and their herbivores, herbivore-induced selection on plants, and vice versa, may be significantly modified by inbreeding and inbreeding depression. In a feeding assay with inbred and outbred lines of both the perennial herb, Vincetoxicum hirundinaria, and its specialist herbivore, Abrostola asclepiadis, we discovered that plant inbreeding increased inbreeding depression in herbivore performance in some populations. The effect of inbreeding on plant resistance varied among plant and herbivore populations. The among-population variation is likely to be driven by variation in plant secondary compounds across populations. In addition, inbreeding depression in plant resistance was substantial when herbivores were outbred, but diminished when herbivores were inbred. These findings demonstrate that in plant-herbivore interactions expression of inbreeding depression can depend on the level of inbreeding of the interacting species. Furthermore, our results suggest that when herbivores are inbred, herbivore-induced selection against self-fertilisation in plants may diminish.
Because inbreeding is common in natural populations of plants and their herbivores, herbivore-induced selection on plants, and vice versa, may be significantly modified by inbreeding and inbreeding depression. In a feeding assay with inbred and outbred lines of both the perennial herb, Vincetoxicum hirundinaria, and its specialist herbivore, Abrostola asclepiadis, we discovered that plant inbreeding increased inbreeding depression in herbivore performance in some populations. The effect of inbreeding on plant resistance varied among plant and herbivore populations. The among-population variation is likely to be driven by variation in plant secondary compounds across populations. In addition, inbreeding depression in plant resistance was substantial when herbivores were outbred, but diminished when herbivores were inbred. These findings demonstrate that in plant-herbivore interactions expression of inbreeding depression can depend on the level of inbreeding of the interacting species. Furthermore, our results suggest that when herbivores are inbred, herbivore-induced selection against self-fertilisation in plants may diminish.
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