Assertion: cryptomonad's gene | /r/HasProperty | essential
Facets:
value: for the chloroplast
type: TRANSITIVE-OBJECT
value: solely
type: DEGREE
Source sentences:
text: Thus, the nucleomorph of Bigelowiella was retained solely because 17 genes are essential for the chloroplast, just as were the cryptomonad nucleomorphs because of the 30 chloroplast proteins they encode (1).