Immuno-genetic studies of species relationships in columbidae
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The comparisons of the species-specific and homologous characters in the erythrocytes of four species of pigeons and doves, as presented in this paper, have as their foundation previously reported cellular characters peculiar toColumba guinea (not inC. livia) which have been isolated as a result of back-crosses tolivia. Comparable results, entirely confirming these, have been obtained in the comparison of the Pearlneck and Ringdove species, especially in the separation of specific Pearlneck characters in back-crosses of the species hybrids to Ring dove.
The present studies show definitely that two of the specific components ofguinea, by which it is differentiated fromlivia, have homologues in both Pearlneck and Ring dove. Certain other specific characters ofguinea, as contrasted withlivia, are shared in part by either or both Pearlneck and Ring dove; the others presumably are found only inguinea.
These results show that a genetic character which distinguishes one species from another may in turn be shared with still another species. Further, other reactions show that each of these four species possessed cellular substances not found in any of the others.
The interrelationships of the cellular components of each species with those of the other three are shown in the diagrams. Presumably these may be taken as approximate phylogenetic relationships.
KeywordsGenetic Character Test Fluid Species Hybrid Specific Reagent Biochemical Character
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