Researches on Population Ecology

, Volume 32, Issue 2, pp 329–335 | Cite as

Age specificity of inbreeding depression during a life cycle ofCallosobruchus chinensis (Coleoptera: Bruchidae)

  • Yoshinari Tanaka


Age-specific effects of inbreeding on fecundity were assayed for adzuki bean weevilCallosobruchus chinensis by comparing inbred lines and their cross. Four consecutive full-sib matings reduced only 10.3 percent in total fecundity, and did not decrease early fecundity at all until third day from the onset of reproduction. It is suggested that recessive detrimental genes have been eliminated from the early period of adult life span when reproductive value is high. There was a slight tendency that inbreeding depression increased as age proceeded though not statistically significant.


Inbred Line Inbreeding Depression Total Fecundity Adult Life Span Adzuki Bean 
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Copyright information

© Society of Population Ecology 1990

Authors and Affiliations

  • Yoshinari Tanaka
    • 1
  1. 1.Laboratory of Applied Entomology and Nematology, School of AgricultureNagoya UniversityNagoyaJapan

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