S. K. Jain Department of Agronomy and Range Science, University of California, Davis, California 95616 Nature . . . abhors perpetual self-fertilization. Charles Darwin (1876) I evilis brought to light, inbreeding is no more to be blamed than the detective who unearths f a crime. D. F. Jones (1925) One long-term adaptation is that a species should have the potentiality to switch to inbreedÂ ing whenever the necessity arose, D. Lewis (1966) Nevertheless, self-fertilizing species are usually the ends o evolutionar lines and rarel if f y y ever contributed to ma jor evolutionary trends. G. L. Stebbins (1974) It is not sur prising . . . that at least one-third o species have ado f pted predominant selfing as a strategy in ecogenetic adaptation. R. W. Allard (1975) With their immense variety o breeding systems, plants will be extremel important f f y or comparative studies. R. C. Lewontin (1974) A full century of thought on the great diversity and evolutionary features of breedÂ ing systems in plants is dramatically reflected in the rather long series of quotes above, Darwin (41 , 42), with his usual combination of genius and persuasive original 'This paper is dedicated to
Annual Review of Ecology, Evolution, and Systematics – Annual Reviews
Published: Nov 1, 1976
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