Skip to main content Accessibility help
×
Home

Inbreeding depression in two seed-feeding beetles, Callosobruchus maculatus and Stator limbatus (Coleoptera: Chrysomelidae)

  • C.W. Fox (a1), K.L. Scheibly (a1), B.P. Smith (a1) and W.G. Wallin (a1)

Abstract

Inbreeding depression is well documented in insects but the degree to which inbreeding depression varies among populations within species, and among traits within populations, is poorly studied in insects other than Drosophila. Inbreeding depression was examined in two long-term laboratory colonies of the seed beetle, Callosobruchus maculatus (Fabricius), which are used frequently as models for experiments in ecology, evolution and behaviour. Inbreeding depression in these laboratory colonies are compared with one recently field-collected population of a different seed beetle, Stator limbatus Horn. Inbreeding reduced embryogenesis, egg hatch and larval survival in both species, such that eggs produced by sib matings were >17% less likely to produce an adult offspring. Inbred larvae also took 4–6% longer to develop to emergence in both species. Inbreeding depression varied among the measured traits but did not differ between the two populations of C. maculatus for any trait, despite the large geographic distance between source populations (western Africa vs. southern India). Inbreeding depression was similar in magnitude between C. maculatus and S. limbatus. This study demonstrates that these laboratory populations of C. maculatus harbour substantial genetic loads, similar to the genetic load of populations of S. limbatus recently collected from the field.

Copyright

Corresponding author

*Fax: 859 323 1120 E-mail: fox@uky.edu

References

Hide All
Armbruster, P. & Reed, D.H. (2005) Inbreeding depression in benign and stressful environments. Heredity 95, 235242.
Arnqvist, G., Nilsson, T. & Katvala, M. (2005) Mating rate and fitness in female bean weevils. Behavioral Ecology 16, 123127.
Bieri, J. & Kawecki, T.J. (2003) Genetic architecture of differences between populations of cowpea weevil (Callosobruchus maculatus) evolved in the same environment. Evolution 57, 274287.
Carr, D.E. & Dudash, M.R. (2003) Recent approaches into the genetic basis of inbreeding depression in plants. Philosophical Transactions of the Royal Society of London Series B – Biological Sciences 358, 10711084.
Charlesworth, D. & Charlesworth, B. (1987) Inbreeding depression and its evolutionary consequences. Annual Review of Ecology and Systematics 18, 237268.
Crnokrak, P. & Roff, D.A. (1999) Inbreeding depression in the wild. Heredity 83, 260270.
Fox, C.W. (2005) Problems in measuring among-family variation in inbreeding depression. American Journal of Botany 92, 19291932.
Fox, C.W. & Scheibly, K.L. (2006) Variation in inbreeding depression among populations of the seed beetle, Stator limbatus. Entomologia Experimentalis et Applicata 121, 137144.
Fox, C.W., Bush, M.L., Roff, D.A. & Wallin, W.G. (2004a) Evolutionary genetics of lifespan and mortality rates in two populations of the seed beetle, Callosobruchus maculatus. Heredity 92, 170181.
Fox, C.W., Czesak, M.E. & Wallin, W.G. (2004b) Complex genetic architecture of population differences in adult lifespan of a beetle: nonadditive inheritance, gender differences, body size and a large maternal effect. Journal of Evolutionary Biology 17, 10071017.
Fox, C.W., Scheibly, K.L., Wallin, W.G., Hitchcock, L.J., Stillwell, R.C. & Smith, B.J. (2006) The genetic architecture of life span and mortality rates: gender and species differences in inbreeding load of two seed-feeding beetles. Genetics 174, 763773.
Frankham, R. (2005) Stress and adaptation in conservation genetics. Journal of Evolutionary Biology 18, 750755.
Gilligan, D.M. & Frankham, R. (2003) Dynamics of genetic adaptation to captivity. Conservation Genetics 4, 189197.
Gilligan, D.M., Briscoe, D.A. & Frankham, R. (2005) Comparative losses of quantitative and molecular genetic variation in finite populations of Drosophila melanogaster. Genetical Research 85, 4755.
Henter, H.J. (2003) Inbreeding depression and haplodiploidy: experimental measures in a parasitoid and comparisons across diploid and haplodiploid insect taxa. Evolution 57, 17931803.
Kawecki, T.J. (1995) Expression of genetic and environmental variation for life-history characters on the usual and novel hosts in Callosobruchus maculatus (Coleoptera: Bruchidae). Heredity 75, 7076.
Knowles, L.L., Levy, A., McNellis, J.M., Greene, K.P. & Futuyma, D.J. (1999) Tests of inbreeding effects on host-shift potential in the phytophagous beetle Ophraella communa. Evolution 53, 561567.
Kristensen, T.N., Dahlgaard, J. & Loeschcke, V. (2003) Effects of inbreeding and environmental stress on fitness using Drosophila buzzatii as a model organism. Conservation Genetics 4, 453465.
Luna, M.G. & Hawkins, B.A. (2004) Effects of inbreeding versus outbreeding in Nasonia vitripennis (Hymenoptera: Pteromalidae). Environmental Entomology 33, 765775.
Messina, F.J. (1991) Life history variation in a seed beetle: adult egg-laying vs. larval competitive ability. Oecologia 85, 447455.
Messina, F.J. (1993) Heritability and evolvability of fitness components in Callosobruchus maculatus. Heredity 71, 623629.
Messina, F.J. (2004a) How labile are the egg-laying preferences of seed beetles? Ecological Entomology 29, 318326.
Messina, F.J. (2004b) Predictable modification of body size and competitive ability following a host shift by a seed beetle. Evolution 58, 27882797.
Messina, F.J. & Karren, M.E. (2003) Adaptation to a novel host modifies host discrimination by the seed beetle Callosobruchus maculatus. Animal Behaviour 65, 501507.
Mitchell, R. (1991) The traits of a biotype of Callosobruchus maculatus (F.) (Coleoptera: Bruchidae) from south India. Journal of Stored Products Research 27, 221224.
Morse, G.E. & Farrell, B.D. (2005a) Ecological and evolutionary diversification of the seed beetle genus Stator (Coleoptera: Chrysomelidae). Evolution 59, 13151333.
Morse, G.E. & Farrell, B.D. (2005b) Interspecific phylogeography of the Stator limbatus species complex: the geographic context of speciation and specialization. Molecular Phylogenetics and Evolution 36, 201213.
Reed, D.H., Lowe, E.H., Briscoe, D.A. & Frankham, R. (2003) Fitness and adaptation in a novel environment: effect of inbreeding, prior environment, and lineage. Evolution 57, 18221828.
Roff, D.A. (1998) Effects of inbreeding on morphological and life history traits of the sand cricket, Gryllus firmus. Heredity 81, 2837.
Roff, D.A. (2002) Inbreeding depression: tests of the overdominance and partial dominance hypotheses. Evolution 56, 768775.
Saccheri, I.J., Lloyd, H.D., Helyar, S.J. & Brakefield, P.M. (2005) Inbreeding uncovers fundamental differences in the genetic load affecting male and female fertility in a butterfly. Proceedings of the Royal Society of London Series B – Biological Sciences 272, 3946.
Tran, B.M.D. & Credland, P.F. (1995) Consequences of inbreeding for the cowpea seed beetle, Callosobruchus maculatus (F.) (Coleoptera: Bruchidae). Biological Journal of the Linnean Society 56, 483503.
Vamosi, S.M. (2005) Interactive effects of larval host and competition on adult fitness: an experimental test with seed beetles (Coleoptera: Bruchidae). Functional Ecology 19, 859864.
Woodworth, L.M., Montgomery, M.E., Briscoe, D.A. & Frankham, R. (2002) Rapid genetic deterioration in captive populations: causes and conservation implications. Conservation Genetics 3, 277288.
Yamane, T. & Miyatake, T. (2005) Intra-specific variation in strategic ejaculation according to level of polyandry in Callosobruchus chinensis. Journal of Insect Physiology 51, 12401243.

Keywords

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed