CARLSBAD, Calif. (AP) -- Life Technologies Corp., life sciences and medical research tools company, said Tuesday it is buying BioTrove Inc. for an undisclosed amount.

BioTrove of Woburn, Mass., makes gene sequencing and analysis equipment, including its OpenArray platform.

"With the OpenArray platform, Life Technologies and its Applied Biosystems subsidiary will be able to provide greater assay content in a higher density format," Life Technologies said.

Shares of Life Technologies rose 35 cents to $50.22 in afternoon trading. Earlier in the session the stock traded at a 52-week high of $50.77.