Sex ratio variation among gynodioecious populations of sea beet: can it be explained by negative frequency-dependent selection?

@article{Dufay2009SexRV,
  title={Sex ratio variation among gynodioecious populations of sea beet: can it be explained by negative frequency-dependent selection?},
  author={Mathilde Dufay and Jo{\"e}l Cuguen and Jean-François Arnaud and Pascal Touzet},
  journal={Evolution; international journal of organic evolution},
  year={2009},
  volume={63 6},
  pages={
          1483-97
        }
}
This study is devoted to assess sex ratio variation among 33 populations of the gynodioecious Beta vulgaris ssp. maritima in Brittany (France) and to explore the causes of this variation. We showed that three different CMS (cytoplasmic male sterility) cytotypes occurred in populations, but strongly differed for their frequencies and the frequency of their associated nuclear restorer alleles (which counteract the effect of CMS and restore male fertility). No correlation was found between CMS and… CONTINUE READING
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