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    Electrophoretic Evidence for Self-fertilization in Two Species of Spirorbid Polychaetes

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    Subject
    Self-Fertilization; Electrophoretic; Spirorbids; Polychaetes
    Author
    Beckwitt, Richard
    Journal Title
    Scas: Bulletin of the Southern California Academy of Sciences
    Volume
    81
    Issue
    scas/vol81/iss2; 2
    Metadata
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    URI
    https://scholar.oxy.edu/handle/20.500.12711/9307
    Abstract
    Electrophoretic evidence for self-fertilization in two species of spirorbid polychaetes by Richard Beckwitt, Bull. Southern California Acad. Sci., 81(2):61-68, 1982. The inheritance of electrophoretically detectable enzymatic variation was studied by means of laboratory culture of Pileolaria pseudomilitaris and Janua brasiliensis. These variants are inherited as simple Mendelian codominants in single-pair matings. A small percentage of progeny from single-pair matings of each species are produced by self-fertilization in these hermaphroditic worms. Isolated individuals of P. pseudomilitaris produced reduced numbers of progeny with genotypes that confirmed self-fertilization by the parent. Isolated individuals of J. brasiliensis did not reproduce in culture. The high degree of polymorphism at several loci suggests that self-fertilization is not a common occurrence in natural populations.
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