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Biology Department - Course Materials

Bio 431: Contemporary Topics in Biology -
Ecology and Evolution of Plant Mating Systems

(last taught: Fall 1998)






431 Contemporary Topics: Plant Mating System Ecology and Evolution
Half-unit course for one semester. We will be surveying the current theoretical and empirical literature on the ecology and evolution of flowering plant mating systems. Topics will center on issues of current controversy and active research. Meeting time will be arranged with the participants.
prerequisites: Junior or Senior class standing is recommended. Population Biology (BIO 366) and/or Vascular Plant diversity (BIO 332) will be helpful.

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The course is taught by Keith Karoly.

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Everyone taking part in the seminar is expected to:

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Seminar meets Monday evening from 6:15-8:15 PM in B200A

To see the reading list for a particular week,
click on the topic name.

Sept 14
Keith Generalist and Specialist
pollination syndromes
Sept 21
Keith Outcrossing rate evolution: are intermediate
outcrossing rates evolutionarily stable?

Sept 28
BrentGametophytic selection
Oct 5
Jim Gynodioecy
Oct 12
Allison & Hilleary Apomixis
Oct 17-25

Oct 26
MitchellFloral morphology
and speciation

Nov 2
LauriePollination by
wind and insects

Nov 9
Nov 16
Nov 23
Christian and BrendonPhylogeny and mating system evolution
Nov 30
Dec 7
KeithResearch Proposals

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Sept 14
Generalist and Specialist
pollination syndromes
  • Waser, N. M., L. Chitka, M. V. Price, N. M Williams, and J. Ollerton. 1996. Generalization in pollination systems, and why it matters. Ecology 77: 1043-1060.
  • Armbruster, W. S., and B. G. Baldwin. 1998. Switch from specialized to generalized pollination. Nature 394: 632.
  • Pauw, A. 1998. Pollen transfer on birds' tongue. Nature 394: 731-732.
  • Sept 21
    Outcrossing rate evolution: are intermediate
    outcrossing rates evolutionarily stable?
  • Schemske, D. W. and R. Lande. 1985. The evolution of self-fertilization and inbreeding depression in plants. II. empirical observations. Evolution 39: 41-52.
  • Waller, D. M. 1986. Is there disruptive selection for self-fertilization? American Naturalist 128: 421-426.
  • Aide, T. M. 1986. The influence of wind and animal pollination on variation in outcrossing rates. Evolution 40: 434-435.

    for background you may also want to look at :

  • Clegg, M. T. 1980. Measuring plant mating systems. Bioscience 30: 814-818.
  • Lande, R. and D. W. Schemske. 1985. The evolution of self-fertilization and inbreeding depression in plants. II. genetic models. Evolution 39: ****read pp 24-26.****
  • Sept 28
    Gametophytic selection
  • Hormaza, J., and M. Herrero. 1992. Pollen selection. Theoretical and Applied Genetics 83: 663-672
  • Pasonen, H. L., and M. Kapyla. 1998. Pollen-pollen interactions in Betula pendula in vitro. New Phytologist 138: 481-487.
  • Quesada, M., J. A. Winsor, and A. G. Stephenson. 1993. Effects of pollen competition on progeny performance in a heterozygous cucurbit. American Naturalist 142: 694-706.

  • Oct 5
  • Kohn, J. R. 1988. Why be female? Nature 335:431-433.
  • Sakai, A. K., S. G. Weller, M. Chen, S. Chou, and C. Tasanont. 1997. Evolution of gynodioecy and maintenance of females: the role of inbreeding depression, outcrossing rates, and resource allocation in Schiedea adamantis (Caryophyllaceae). Evolution 51: 724-736.


    a selection from Chapter VII of:
  • Darwin, C. R. 1877. The Different Forms of Flower on Plants of the Same Species. John Murray, London.
  • Oct 12
  • Kaur, A., C. O. Ha, K. Jong, V. E. Sands, H. T. Chan, E. Soepadmo, P. S. Ashton. 1978. Apomixis may be widespread among trees of the climax rain forest. Nature 271: 440-442
  • Bierzychudek, P. 1989. Environmental sensitivity of sexual and apomictic Antennaria: do apomicts have general-purpose genotypes? Evolution 43: 1456-1466.
  • Thomas, S. C. 1997. Geographic parthenogenesis in a tropical forest tree. American Journal of Botany 84: 1012-1015.
  • Oct 26
    Floral morphology
    and speciation
  • Hodges, SA., and M. L. Arnold. 1995. Spurring plant diversification: are floral nectar spurs a key innovation? Proceedings of the Royal Society of London, Series B 262: 343-348..
  • Johnson, S.D., H.P. Linder, and K.E. Steiner. 1998. Phylogeny and radiation of pollination systems in Disa (Orchidaceae). American Journal of Botany 85: 402-411.
  • Hodges, SA, and M.L. Arnold. 1994. Floral and ecological isolation between Aquilegia formosa and Aquilegia pubescens. Proceedings of the National Academy of Sciences, USA 91: 2493-2496.
  • Nov 2
    Pollination by wind and insects
  • Charlesworth, D. 1993. Why are unisexual flowers associated with wind pollination and unspecialized pollinators? American Naturalist 141: 481-490.
  • Melampy, M. N. and A. M. Hayworth. 1980. Seed production and pollen vectors in several nectarless plants. Evolution 34: 1144-1154.
  • Le Corff, J., J. Agren, and D. W. Schemske. 1998. Floral display, pollinator discrimination, and female reproductive success in two monoecious Begonia species. Ecology 79: 1610-1619.
  • Nov 9
  • Rieseberg, L. H. 1995. The role of hybridization in evolution: old wine in new skins. American Journal of Botany 82: 944-953.
  • Weiblen, G. D., and D. G. Brehm. 1996. Reproductive strategies and barriers to hybridization between Tellima grandiflora and Tolmeia meziesii (Saxifragaceae). American Journal of Botany 83: 910-918.
  • Coutron, E., P. Lashermes, and A. Charrier. 1998. First intergeneric hybrids (Psilanthus ebracteolatus Hiern X Coffea arabica L.) in coffee trees. Canadian Journal of Botany 76: 542-546.
  • Nov 16
  • Potts, B.M., and J.B. Reid. 1988. Hybridization as a dispersal mechanism. Evolution 42: 1245-1255
  • Floate, K.D., and T.G. Whitham. 1993. The hybrid bridge hypothesis: host shifting via plant hybrid swarms. American Naturalist 141:651-662.
  • Levin, D. A., J. Francisco-Ortega, and R. K. Jannsen. 1996. Hybridization and extinction of rare plant species. Conservation Biology 10: 10-16.
  • Nov 23
    Phylogeny and mating system evolution
  • Pellmyr, O., J. N. Thompson, J. M. Brown, and R. G. Harrison. 1996. Evolution of pollination and mutualism in the yucca moth lineage. American Naturalist 148: 827-847.
  • Armbruster, W. S. 1993. Evolution of plant pollination systems: hypotheses and tests with the neotropical vine Dalechampia. Evolution 47: 1480-1505.
  • Nov 30
  • Matton, D. P., N. Nass, A. E. Clarke, and E. Newbigin. 1994. Self-incompatibility: how plants avoid illegitimate offspring. Proceedings of the National Academy of Sciences, USA 91: 1992-1997.
  • Weller, S. G., M. J. Donoghue, and D. Charlesworth. 1995. The evolution of self-incompatibility in flowering plants: a phylogenetic approach., pp. 355-382, in P. C. Hoch and A. G. Stephenson, [eds.], Experimental and Molecular Approaches to Plant Biosystematics. Missouri Botanical Garden, St. Louis.
  • Richman, A. D., M. K. Uyenoyama, and J. R. Kohn. 1996. Allelic diversity and gene genealogy at the self-incompatibility locus in the Solanaceae. Science 273: 1212-1216.
  • Dec 7
    Research Proposalsread proposals

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    Literature Reviews

    The following is intended to clarify the literature review assignments. Please see me for any questions regarding choice of papers or further clarification about the writing.

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