Components of Flowering Time Variation in a Desert Annual.

  title={Components of Flowering Time Variation in a Desert Annual.},
  author={Gordon A. Fox},
  journal={Evolution; international journal of organic evolution},
  volume={44 6},
How much of the variation seen in life histories is consistent with adaptive hypotheses, and how much requires other kinds of explanation? Differences in flowering time between Sonoran (earlier flowering) and Chihuahuan Desert (later flowering) populations of the desert annual Eriogonum abertianum Torr. (Polygonaceae) are significant, repeatable between greenhouse experiments, and persist into a second greenhouse generation. These apparent genetic differences are consistent with a hypothesis of… CONTINUE READING

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