I think we all should be concerned about the loss of genetic diversity in agriculture. The photo above was taken several years ago as I was crossing the Oklahoma Panhandle. I stopped because it was an exceptional group of cattle and they weren't black.
There are several reasons the cattle industry has become dominated by black cattle -- notice that I say black and not Angus. One is that Certified Angus Beef has done an amazing job at promoting the quality characteristics of the beef produced from Angus cattle. A second is that the Angus breed truly does typically marble more easily and therefore, the beef is more flavorful and tender. Because the market favors those characteristics, ranchers are often paid more for black-hided cattle that exhibit the phenotypic Angus traits. Less profitable breeds tend to fade away, or become extremely small niche opportunities for breeders seeking uniqueness and finding profit in a boutique market -- or the they find more effective ways to market their product.
The same thing has happened in almost every aspect of agriculture. We now see only a few basic types of most species dominating their market -- whether it be corn, soybeans, fruits, vegetables, pigs, chickens, or whatever. Agriculture moves toward the most profitable.
The narrowing of the gene pool comes at a price. Along with more productivity based on market-driven factors we often see susceptibility to disease or, weather-driven factors such as drought or extremely wet conditions. That susceptibility adds to the use of chemicals, drugs, or other high-cost inputs to combat the problems.
A different approach, especially in countries that are less industrialized in their techniques, might be through the utilization of multiple strains of a plant across a field, or the varying of strains based on specific conditions unique to a location. Ancient civilizations did this through a collective wisdom garnered through trial and error and close observation. Today, with the information gathering capabilities we have, data banks could be designed with a focus on what I might term "species intelligence" that allows the farmer to better match genetics to current conditions of soil, weather and other factors at his specific location.
We need to re-think species diversity. Uniformity is not always the answer. We have moved that direction, to some extent at least, to accommodate industrialization of the farming processes. It is easier to plant, cultivate and harvest the crop when it is uniform. Varying species across a field would mean that the needs of the plants would not all occur simultaneously. Diversity might add to the necessity for robotic farming.
It is interesting to me that in order to gain efficiency we moved away from ancient knowledge and techniques but, in order to reinstitute that ancient knowledge we may be challenged with developing even higher forms of technology in order to reap the benefits of that knowledge and wisdom. Have you ever noticed that we seem to "evolve" in circles? The pendulum swings....
