Bending the edges of a gradient?

hi all. i have an image with a linear gradient filling a circle
i want to bend the gradient towards the left and right edges of the circle to create the appearance of a spinning sphere.
i tried using the warp tools but these only had effect on the circle that the gradient fills, not the actual gradient itself.
i also tried using a radial graident, but that obviously caused the entire gradient to be bent on a circular path, not just the edges.
i attached an example of what i am trying to achieve below
http://i35.photobucket.com/albums/d188/OphidianShenzi/gradientcircleproblem.jpg
so - im stumped! any advice?
thank you in advance!

Understand, after creating the Blend you can directSelect (whitePointer) either of the key objects and alter its color stops in the Grad palette as desired.
Key principles related to effective use of Blends:
You can blend between objects that have grad fills. The grad fills do not have to have the same angles.
Blends are generated between corresponding anchorPoints of each path. So results are more predictable/controllable if the blended paths have the same number of anchorPoints.
Likewise, when blending between grads, it is more predictable/controllable to have the same number of grad color stops on each blended path, even if some or all of the adjacent stops in some paths are the same color.
You can designate two anchorPoints as "corresponding" by having them selected when you invoke the Blend command. Or, do as demonstrated, and blend between two copies of the same path and then perform transformations on directSelected paths after the Blend is made.
Blends are built point-by-point in a straight line. So in my original example, rotating 180 degrees looks the same as no rotation at all.
JET

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