Deals of the day-Mergers and acquisitions
(Adds Roche, Vodafone, Rosneft and Minor)
Feb 2 (Reuters) - The following bids, mergers, acquisitions and disposals were reported by 2100 GMT on Tuesday:
** China's state-owned ChemChina is nearing a deal to buy Swiss seeds and pesticides group Syngenta AG for around 43 billion Swiss francs ($42.2 billion), two people familiar with the matter said on Tuesday.
** Roche Holding AG has in recent weeks approached Pacific Biosciences of California Inc to discuss acquiring the U.S. company, spurred by interest in its advanced gene-sequencing technology, people familiar with the matter said.
** Mobile phone networks operator Vodafone said on Tuesday it was in talks with John Malone's cable company Liberty Global about forming a joint venture in the Netherlands.