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

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Researches on Population Ecology

Summary

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.

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Authors and Affiliations

  1. Laboratory of Applied Entomology and Nematology, School of Agriculture, Nagoya University, Chikusa, 464-01, Nagoya, Japan

    Yoshinari Tanaka

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  1. Yoshinari Tanaka
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Tanaka, Y. Age specificity of inbreeding depression during a life cycle ofCallosobruchus chinensis (Coleoptera: Bruchidae). Res Popul Ecol 32, 329–335 (1990). https://doi.org/10.1007/BF02512567

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