Patterns Among Species
Abstract Electrophoretic surveys of genetic variation of proteins provide estimates of the levels of genetic variability in a large number of plants (Brown 1979; Hamrick and Godt 1990; Hamrick, Linhart, and Mitton 1979) and animals (Nevo 1978; Nevo, Beiles, and Ben-Shlomo 1984; Powell 1975; Selander...
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| Format: | Book Part |
| Language: | unknown |
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Oxford University PressNew York, NY
1997
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| Online Access: | http://dx.doi.org/10.1093/oso/9780195063523.003.0009 https://academic.oup.com/book/chapter-pdf/52320413/isbn-9780195063523-book-part-9.pdf |
| Summary: | Abstract Electrophoretic surveys of genetic variation of proteins provide estimates of the levels of genetic variability in a large number of plants (Brown 1979; Hamrick and Godt 1990; Hamrick, Linhart, and Mitton 1979) and animals (Nevo 1978; Nevo, Beiles, and Ben-Shlomo 1984; Powell 1975; Selander 1976). The percentage of loci polymorphic ranges from zero in elephant seals (Bonnell and Selander 1974) and cheetahs (O’Brien et al. 1983,1985) to 92% in quaking aspen (Cheliak and Dancik 1982) and 100% in the mussel Modiolus auriculatus (Nevo et al. 1984). One of the most enduring objectives of electrophoretic studies is to understand the forces that produce differences among species in genetic variability. This chapter briefly summarizes several theories and some data relevant to this objective. |
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