Potentially species-variable DNA regions of Cheesemania " Chalk Range"

Three of 5 potentially useful gene regions have been sequenced as part of a survey of genetic variation within the Cheesemania complex, with particular emphasis on the status of C. `Chalk Range'. The 3 regions screened to date have shown no variation between these entities. It is recommended that the remaining potentially variable DNA regions be sequenced. If no variation is shown for any of these regions, this supports the hypothesis that these taxa in fact represent a single species. It is also recommended that this hypothesis be further tested by using population genetic methods. This will allow us to estimate gene flow between populations and to better understand species limits within this closely related group.