Abstract
Genetic variation was examined in the Japanese apogamous and sexual forms ofAsplenium unilaterale by electrophoretic analysis of eight enzyme systems. The apogamous form consisted of four biotypes (A, B, C, and D) which show different band patterns. Biotypes C and D were distinguished from biotype A by a difference at only one locus each:Mdh-1 andPgi-2, respectively. Biotypes A, C, and D were sufficiently differentiated from the sexual form (Nei's genetic distance (D)=0.50). This suggests that the apogamous form is not directly derived from the sexual form. However, biotype B expressed the combined band pattern of biotype C and the sexual form, leading to the conclusion that biotype B probably originated by hybridization between those two.
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Watano, Y., Iwatsuki, K. Genetic variation in the ‘Japanese apogamous form’ of the fernAsplenium unilaterale Lam.. Bot Mag Tokyo 101, 213–222 (1988). https://doi.org/10.1007/BF02488600
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DOI: https://doi.org/10.1007/BF02488600