The effects of hybridization in plants on secondary chemistry: implications for the ecology and evolution of plant–herbivore interactions

American Journal of Botany - Tập 87 Số 12 - Trang 1749-1756 - 2000
Colin M. Orians1
1Department of Biology, Tufts University, Medford, Massachusetts 02155, USA

Tóm tắt

Natural hybridization is a frequent phenomenon in plants. It can lead to the formation of new species, facilitate introgression of plant traits, and affect the interactions between plants and their biotic and abiotic environments. An important consequence of hybridization is the generation of qualitative and quantitative variation in secondary chemistry. Using the literature and my own results, I review the effects of hybridization on plant secondary chemistry, the mechanisms that generate patterns of chemical variation, and the possible consequences of this variation for plants and herbivores. Hybrids are immensely variable. Qualitatively, hybrids may express all of the secondary chemicals of the parental taxa, may fail to express certain parental chemicals, or may express novel chemicals that are absent in each parent. Quantitatively, concentrations of parental chemicals may vary markedly among hybrids. There are five primary factors that contribute to variation: parental taxa, hybrid class (F1, F2, etc.), ploidy level, chemical class, and the genetics of expression (dominance, recessive vs. additive inheritance). This variation is likely to affect the process of chemical diversification, the potential for introgression, the likelihood that hybrids will facilitate host shifts by herbivores, and the conditions that might lead to enhanced hybrid susceptibility and lower fitness.

Từ khóa


Tài liệu tham khảo

10.1038/195825a0

10.1093/oxfordjournals.jhered.a111024

10.5962/bhl.title.4553

10.2307/1312250

Arnold M. L., 1997, Natural hybridization and evolution

10.1016/S0169-5347(00)88979-X

10.1007/978-1-4899-3368-3

10.1002/j.1537-2197.1971.tb10032.x

10.1007/BF02033460

Berenbaum M., 1983, Coumarins and caterpillars: a case for coevolution, Evolution, 39, 163, 10.2307/2408184

10.1007/b102508

10.1016/0031-9422(94)00870-Y

10.1086/285246

Chew F. S., 1979, Herbivores: their interactions with plant secondary metabolites, 271

10.1016/S0031-9422(00)88850-0

10.4141/cjps92-021

10.2307/2805804

10.2307/1308564

10.2307/2419202

Ellstrand N. C., 1996, Proceedings of the National Academy of Sciences, 5090

10.2307/2440420

10.1086/285497

10.1890/0012-9658(1999)080[0382:ROHPTH]2.0.CO;2

10.1146/annurev.ecolsys.30.1.565

10.1007/BF00317914

10.1016/S0031-9422(00)88614-8

10.1111/j.1439-0523.1993.tb00634.x

10.1111/j.1439-0523.1994.tb00661.x

10.2307/5592

Harborne J. B., 1984, Plant chemosystematics

Hardig T. M., 2000, Morphological and molecular evidence for hybridization and introgression in a willow (Salix) hybrid zone, Molecular Evolution, 9, 9

10.1126/science.142.3595.1061

Hochwender C. G. R. S.Fritz andC. M.Orians.2001.Using hybrid systems to explore the evolution of tolerance to damage.Evolutionary Ecology in press.

10.1007/BF01014823

Jones S. B., 1972, Hybridization of Vernonia acaulis and V. noveboracensis (Compositae) in the piedmont of North Carolina, Castanea, 37, 244

10.1007/BF01014080

10.1093/ee/17.6.952

10.1093/genetics/123.3.557

10.2307/2418495

10.2307/2439792

10.2307/2805776

10.1002/j.1537-2197.1967.tb10742.x

10.1002/j.1537-2197.1974.tb06041.x

10.1111/j.1558-5646.1966.tb03369.x

Maxwell F. G., 1980, Breeding plants resistant to insects

10.1093/oxfordjournals.jhered.a110508

10.1086/283597

10.1016/0305-1978(75)90017-4

10.1007/BF00333943

10.1007/BF02027559

10.1016/S0305-1978(99)00101-5

10.1046/j.1570-7458.1997.00183.x

10.1016/0305-1978(73)90005-7

10.2307/2805816

10.1890/0012-9658(1999)080[0407:PHZAIH]2.0.CO;2

10.1002/j.1537-2197.1991.tb11415.x

10.1002/j.1537-2197.1995.tb15711.x

10.1046/j.1469-8137.1998.00315.x

10.1080/713608045

10.1126/science.272.5262.741

Rieseberg L. H., 1993, Hybrid zones and the evolutionary process, 70, 10.1093/oso/9780195069174.003.0004

10.1002/j.1537-2197.1980.tb07748.x

10.1093/ee/16.3.586

Rosenthal G. A., 1979, Herbivores: their interactions with secondary plant metabolites

10.1007/BF01901681

10.1016/0305-1978(79)90033-4

10.1002/j.1537-2197.1963.tb06575.x

10.2307/2444628

10.2307/2419333

10.1016/0305-1978(89)90094-X

10.1016/0305-1978(90)90027-D

Stebbins G. L., 1959, The role of hybridization in evolution, Proceedings of the American Philosophical Society, 103, 231

10.1093/jee/83.3.737

10.1016/S0031-9422(00)90470-9

10.1016/0169-5347(94)90245-3

10.2307/2439992

10.1073/pnas.89.17.8399

10.1007/BF00333869

10.1016/0305-1978(95)93661-L

10.1016/0305-1978(94)90055-8

10.1126/science.244.4911.1490

10.1890/0012-9658(1999)080[0416:PHZABT]2.0.CO;2

10.1126/science.254.5033.779.c

10.2307/2418401

10.1016/0305-1978(75)90039-3

10.1086/335714

Thông tin
Thông tin xuất bản

American Journal of Botany

Tập 87 Số 12

1749-1756

Thông tin tác giả