Before revision:  We present a phase diagram for  morphologies of budded particles , which can be compared against experiments to establish bounds on whether budding is directed by glycoprotein or nucleocapsid interactions  .
After revision:  We present a phase diagram for morphologies of budded particles , which can be compared against experiments to establish bounds on whether budding is directed by glycoprotein or nucleocapsid interactions . Although our model is motivated by alphaviruses, we discuss implications of our results for other enveloped viruses .