holandric gene vs Y-linked gene

holandric gene and Y-linked gene both are nouns.

Word	Noun	Adjective	Verb	Adverb
holandric gene	Yes	No	No	No
Y-linked gene	Yes	No	No	No

As nouns, holandric gene and Y-linked gene are synonyms defined as:

holandric gene (noun)	Y-linked gene (noun)
a gene located on a Y chromosome	a gene located on a Y chromosome