Plot latitude and longitude

Hi all

I have a list of latitude and longitude and i want plot then. The thing is in the map doesnt show the latitude values in the map like... -90 -60 -30 0 30 60 90 and my plot;

This code just gives me my plot...I want show the latitudes of the map

lat= cell2mat(Lat);

lon= cell2mat(Long);

axesm ('MapProjection','ortho', 'Origin',[360 0]);

gridm on

plotm(lat,lon,'k.')

Any idea ???? :D