. "Part III: Protoctist Models." Variation and Evolution in Plants and Microorganisms: Toward a New Synthesis 50 Years after Stebbins. Washington, DC: The National Academies Press, 2000.
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Variation and Evolution in Plants and Microorganisms: TOWARD A NEW SYNTHESIS 50 YEARS AFTER STEBBINS
the parasite. Rich and Ayala analyze allelic sequences of antigenic genes and conclude that they are consistent with a recent origin of the world populations of P. falciparum. The antigenic polymorphisms come about rapidly by mass natural selection acting on sequence variations originated at high rates by intragenic recombination of short DNA repeats.
