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Author (up) Fox, C.W.; Scheibly, K.L.; Smith, B.P.; Wallin, W.G. url  doi
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  Title Inbreeding depression in two seed-feeding beetles, Callosobruchus maculatus and Stator limbatus (Coleoptera: Chrysomelidae) Type Journal Article
  Year 2007 Publication Bulletin of Entomological Research Abbreviated Journal Bull Entomol Res  
  Volume 97 Issue 1 Pages 49-54  
  Keywords Animals; Beetles/*genetics/growth & development; *Inbreeding; Metamorphosis, Biological/*genetics; Seeds/parasitology  
  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.  
  Address Department of Entomology, University of Kentucky, Lexington, KY 40546-0091, USA. fox@uky.edu  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0007-4853 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:17298681 Approved no  
  Call Number Bridgewater @ rpuffenb @ Serial 19  
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