Your Query returns 11 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
MYB3AF0628593702Col   
myb3X70878112509
myb3X70881112509
myb3AJ6013784521
MYB3AF0341313635
MYB3AF5157254522
MYB3AY11551147615
MYB3AF485894217449
Myb3AY3631194558
Myb3AF4741164577
myb3AY456181255331

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* OMIM link based on symbol match for human and mouse.

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Text2Knowledge ... Yong Huang 2002