Interspecific Sterility


Dr. Gates, in his letter which appears in NATURE for August 5, p. 179, emphasises the importance of tetraploid species in evolution, and with this position I heartily agree. Nevertheless, I do not think that the difficulties in the way of free crossings amongst diploid, tetraploid, and hexaploid species are so great as seems at first sight probable, at any… (More)
DOI: 10.1038/110312a0


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