You will be shown biomedical passages and your task is to the answer the provided question. Provide a concise and accurate response and do not include any additional text in the response other than the answer.

Question: What type of sequences do enhancers evolve from?

Context: The sequences of some gene regulatory elements diverge considerably, even between closely related species.
The trend is one of high divergence of cis-regulatory elements between species, possibly compensated by extensive creation and loss of regulatory elements and rewiring of their target genes.
These studies have identified enhancers that were pivotal for morphological divergence and highlighted how novel genetic networks shaping form emerged from pre-existing ones.
Most of the recently evolved enhancers arise from ancestral DNA exaptation, rather than lineage-specific expansions of repeat elements.
santomea enhancer activity evolved from a weak ancestral activity.
exaptation of ancestral DNA