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Evolutionary Pathway To Separate-Sex Plants

Date:
October 3, 2000
Source:
University Of Arizona
Summary:
Two University of Arizona researchers, doctoral candidate Jill Miller and her advisor Larry Venable, have discovered a new and possibly common pathway for the evolution of separate sexes in plants. Their research identifies polyploidy, the multiplication of chromosomes into more than the usual two sets, as a crucial precursor to the evolution of many separate-sex plants.

When it comes to sex, most plants have the best of both worlds: their sex organs (flowers) are both male and female at the same time. The few species that segregate the sexes have long baffled scientists, because a single-sex plant will on average be only half as successful as a hermaphrodite (a plant with both-sex flowers).


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The above story is based on materials provided by University Of Arizona. Note: Materials may be edited for content and length.


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University Of Arizona. "Evolutionary Pathway To Separate-Sex Plants." ScienceDaily. ScienceDaily, 3 October 2000. <www.sciencedaily.com/releases/2000/10/001003073154.htm>.
University Of Arizona. (2000, October 3). Evolutionary Pathway To Separate-Sex Plants. ScienceDaily. Retrieved April 18, 2014 from www.sciencedaily.com/releases/2000/10/001003073154.htm
University Of Arizona. "Evolutionary Pathway To Separate-Sex Plants." ScienceDaily. www.sciencedaily.com/releases/2000/10/001003073154.htm (accessed April 18, 2014).

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