  Recent studies have shown that the per-nucleon number of Short-Range
Correlated (SRC) pairs in nuclei and the strength of the EMC effect are
linearly correlated, increasing from light nuclei up to iron and then
saturating. This paper shows that the per-proton number of SRC pairs and the
strength of the EMC effect are linearly correlated and increase from light to
heavy asymmetric neutron-rich nuclei without saturation. These quantities,
calculated per neutron, are also linearly related, but saturate (have constant
value) remarkably early, starting with 12C. We propose that the observed
phenomenological relationships indicate an isospin dependence of the EMC effect
which is associated with the dominance of SRCs by neutron-proton pairs from 3He
to heavy asymmetric neutron-rich nuclei.
