C - B87 ( xB89 ) Y - DNA has been found in a Buryat ( C - B88 ) and in a Xibo .
( xB89 ) Y - DNA belongs to C - B87 but does not belong to its C - B89 subclade .
C - B87 ( xB89 ) Y - DNA , which belongs to C - B87 but does not belong to its C - B89 subclade , has been found in a Buryat ( C - B88 ) and in a Xibo .