METHODS AND COMPOSITIONS RELATING TO MULTIPLEX GENOMIC GAIN AND LOSS ASSAYS

摘要

Compositions and methods are provided for detecting genomic DNA gain and loss. Embodiments of inventive compositions and methods include composite nucleic acid probes which specifically hybridize to two or more genomic loci in a genomic region of a reference genome for detection of genomic gain and/or loss in a subject genome. In some embodiments, a substrate-attached composite nucleic acid probe is provided which includes a mixture of separate populations of beads having attached DNA probes wherein all of the beads are identically encoded and wherein each individual bead has exclusively DNA derived from one source, such as a particular large insert vector containing chromosomal DNA, or amplicons generated by amplification of DNA derived from a large insert vector containing chromosomal DNA.