Genome streamlining and clonal erosion in nutrient-limited environments: a test using genome-size variable populations.

Abstract excerpt

Some selection-based theories propose that genome streamlining, favoring smaller genome sizes, is advantageous in nutritionally limited environments, particularly under P-limitation. To test this prediction, we conducted several experimental evolution trials on clonal populations of a facultatively asexual rotifer that exhibits intraspecific variation in genome size. Most trials showed a rapid decline in clonal...

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