 However, subsequent research indicates that the samples concerned most likely belong to the subclade R-V88, which is now concentrated in Sub-Saharan Africa, following migration from Asia.Two branches of R-V88, R-M18 and R-V35, are found almost exclusively on the island of Sardinia.As can be seen in the above data table, R-V88 is found in northern Cameroon in west central Africa at a very high frequency, where it is considered to be caused by a pre-Islamic movement of people from Eurasia.