. Biochemical systematics. Biochemical variation; Botany. I W « '%. (a) (b) Fig. 5-2. Immunoelectrophoretic patterns: (a) unadsorbed anti- rye-wheat serum (in trough) against rye (right), rye-wheat hybrid (center), and wheat (left); (b) adsorbed antirye-wheat serum against rye (right), rye-wheat hybrid (center), and wheat (left) (Hall, 1959). By permission of Hereditas. been placed by some systematists into the Berberidaceae. Alkaloid chemistry presents another line of biochemical evidence relevant to the placement of Hydrastis, but in this case the biochemical affinities are with the Berberid
. Biochemical systematics. Biochemical variation; Botany. I W « '%. (a) (b) Fig. 5-2. Immunoelectrophoretic patterns: (a) unadsorbed anti- rye-wheat serum (in trough) against rye (right), rye-wheat hybrid (center), and wheat (left); (b) adsorbed antirye-wheat serum against rye (right), rye-wheat hybrid (center), and wheat (left) (Hall, 1959). By permission of Hereditas. been placed by some systematists into the Berberidaceae. Alkaloid chemistry presents another line of biochemical evidence relevant to the placement of Hydrastis, but in this case the biochemical affinities are with the Berberidaceae. This question will be considered further in a subsequent chapter devoted to the alkaloids. The immunogenetic studies of M. R. Irwin and his colleagues and students at Wisconsin are well-known, and these have been alluded to briefly in the preceding chapter. Further consideration of this significant work is included in the later chapter on biochemical studies of hybrids. A serological method which, in contrast to the straight pre- cipitin reaction, is qualitative in nature has been utilized to advantage in animal systematic investigations and to some extent in plant studies. In principle this technique, known as Immunoelectrophoresis, is similar to the other serological methods. Extracts of seeds or other plant material are prepared and then subjected to agar-gel electro- phoresis. As described by Hall (1959), in one modification, parallel. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Alston, Ralph E; Turner, B. L. (Billie Lee), 1925-. Englewood Cliffs, N. J. , Prentice-Hall
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