• The genetics of armadillidium vulgare latr - IV. Lines breeding true for amphogeny and thelygeny

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    • Abstract

       

      1. Sex ratios of broods were studied in two lines of the woodlouse,Armadillidium vulgare. The two lines originated from two females, pregnant when collected from a wild population.

      2. One line was found to breed true for amphogeny (1:1 sex ratios), and the other line bred almost true for thelygeny (nearly 100% females).

      3. In the amphogenic line there was a small excess of females over males. Similar excesses of females are found in broods from amphogenic females of other woodlouse species.

      4. Sex determination in woodlice, the origin of monogenic broods, and the inheritance of monogeny are discussed.

    • Author Affiliations

       

      H. W. Howard1

      1. Cambridge
    • Dates

       
  • Journal of Genetics | News

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