Matthew Roper argues that DNA is not dependable evidence to identify Book of Mormon peoples.
Matthew Roper, "Swimming in the Gene Pool: Israelite Kinship Relations, Genes, and Genealogy," FARMS Review 15, no. 2 (2003): 129–64
This article discusses the possibility that DNA is not dependable evidence either for or against the veracity of the Book of Mormon. It is difficult to ascertain whether Book of Mormon people were literal descendants of Israel and how similar those genetics are with modern Israelites. Therefore, no conclusive statements can be made concerning the DNA of Book of Mormon people.