Same brand network card adapter and router?

Hello,

I'm in the process of buying a network adapter card for my laptop. I was wondering if I have to get the same brand for it to work with my wireless router. I have a Linksys Wireless Router, so would I need to buy a Linksys wireless notebook card or can i buy like Netgear, Belkin, D-Link. If i don't will there be any issues like compatability that will arise later on?

Thank You!