חיפוש מתקדם
Journal of Evolutionary Biology
Segoli, M., Department of Life Sciences, Ben Gurion University, Beer Sheva, Israel, Department of Entomology, University of California, Davis, CA, United States
Harari, A.R., Department of Entomology, Agricultural Research Organization, The Volcani Center, Bet Dagan, Israel
Rosenheim, J.A., Department of Entomology, University of California, Davis, CA, United States
Bouskila, A., Department of Life Sciences, Ben Gurion University, Beer Sheva, Israel
Keasar, T., Department of Science Education - Biology, University of Haifa, Oranim, Tivon, Israel
Polyembryony has evolved independently in four families of parasitoid wasps. We review three main hypotheses for the selective forces favouring this developmental mode in parasitoids: polyembryony (i) reduces the costs of egg limitation; (ii) reduces the genetic conflict among offspring; and (iii) allows offspring to adjust their numbers to the quality of the host. Using comparative data and verbal and mathematical arguments, we evaluate the relative importance of the different selective forces through different evolutionary stages and in the different groups of polyembryonic wasps. We conclude that reducing the cost of egg limitation is especially important when large broods are favoured. Reducing genetic conflict may be most important when broods are small, thus might have been important during, or immediately following, the initial transition from monoembryony to polyembryony. Empirical data provide little support for the brood-size adjustment hypothesis, although it is likely to interact with other selective forces favouring polyembryony. © 2010 The Authors. Journal Compilation © 2010 European Society For Evolutionary Biology.
פותח על ידי קלירמאש פתרונות בע"מ -
הספר "אוצר וולקני"
אודות
תנאי שימוש
The evolution of polyembryony in parasitoid wasps
23
Segoli, M., Department of Life Sciences, Ben Gurion University, Beer Sheva, Israel, Department of Entomology, University of California, Davis, CA, United States
Harari, A.R., Department of Entomology, Agricultural Research Organization, The Volcani Center, Bet Dagan, Israel
Rosenheim, J.A., Department of Entomology, University of California, Davis, CA, United States
Bouskila, A., Department of Life Sciences, Ben Gurion University, Beer Sheva, Israel
Keasar, T., Department of Science Education - Biology, University of Haifa, Oranim, Tivon, Israel
The evolution of polyembryony in parasitoid wasps
Polyembryony has evolved independently in four families of parasitoid wasps. We review three main hypotheses for the selective forces favouring this developmental mode in parasitoids: polyembryony (i) reduces the costs of egg limitation; (ii) reduces the genetic conflict among offspring; and (iii) allows offspring to adjust their numbers to the quality of the host. Using comparative data and verbal and mathematical arguments, we evaluate the relative importance of the different selective forces through different evolutionary stages and in the different groups of polyembryonic wasps. We conclude that reducing the cost of egg limitation is especially important when large broods are favoured. Reducing genetic conflict may be most important when broods are small, thus might have been important during, or immediately following, the initial transition from monoembryony to polyembryony. Empirical data provide little support for the brood-size adjustment hypothesis, although it is likely to interact with other selective forces favouring polyembryony. © 2010 The Authors. Journal Compilation © 2010 European Society For Evolutionary Biology.
Scientific Publication
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