Electrophoretic evidence for self-fertilization in two species of spirorbid polychaetes
In: Bulletin of the Southern California Academy of Sciences. The Academy: Los Angeles, Calif. ISSN 0038-3872; e-ISSN 2162-4534, meer
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| Trefwoorden |
Janua brasiliensis (Grube, 1872) [WoRMS]; Neodexiospira brasiliensis (Grube, 1872) [WoRMS]; Spirorbinae Chamberlin, 1919 [WoRMS]
Marien/Kust |
| Author keywords |
Pileolaria pseudomilitaris |
| Abstract |
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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