A spectroscopic analysis is presented, where elliptical galaxies in Hickson Compact Groups (HCG) are compared with their counterparts in the field. The stellar population study shows that low-mass galaxies in HCGs present an enhanced. [Mg/Fe] abundance ratio, interpreted as a relic of an event which truncated their star formation. http://www.redalyc.org/pdf/571/57102648.pdf