Embryonic hypocotyl pigmentation

Don,

This is a first for me!

Have you seen such embryonic hypocotyl pigmentaion before? (Embryo pictured today, day 4 of jar culture, just prior to being buried in seed raising mix for germination).

Could this pigmentation predict anything in the resulting seedling/plant in your experience?

The other two sibbling embryos from the same hip are pictured below, for comparison…

Sibbling 1

Sibbling 2