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LETTER doi:10.1038/nature09449 Higher rates of sex evolve in spatially heterogeneous
 

Summary: LETTER doi:10.1038/nature09449
Higher rates of sex evolve in spatially heterogeneous
environments
Lutz Becks1,2
& Aneil F. Agrawal1
The evolution and maintenance of sexual reproduction has puzzled
biologists for decades1,2
. Although this field is rich in hypotheses35
,
experimental evidence is scarce. Some important experiments have
demonstrated differences in evolutionary rates between sexual and
asexual populations68
; other experiments have documented evolu-
tionary changes in phenomena related to genetic mixing, such as
recombination9,10
and selfing11
. However, direct experiments of the
evolution of sex within populations are extremely rare (but see
ref. 12). Here we use the rotifer, Brachionus calyciflorus, which is
capable of both sexual and asexual reproduction, to test recent

  

Source: Agrawal, Aneil F. - Department of Ecology and Evolutionary Biology, University of Toronto

 

Collections: Environmental Sciences and Ecology