brown pigment wild type red - metropolitan … pigment intoduction 1 l gene n gene e gene l enzyme n...
TRANSCRIPT
Fly pigment intoduction
1
L gene N gene E gene
L enzyme N enzyme E enzyme
precursor L substance N substance brown pigment
Wild type Red
yellow pigment (darkens)1
precursor2 blue pigment3 orange pigment5
P enzyme green-blue pigment4 D enzyme
P gene R gene R enzyme D gene
violet-blue6
Note: only the bottom metabolic pathway was observable on the chromatography paper. All of the
genes are represented by the dominant alleles which produce functional enzyme. Recessive alleles
produce enzyme with less or no function.
Footnotes
1 sepiapterin Reaume et al. (1991) noted that sepiapterin broke down quickly in UV light to give
another unspecified pigment
2 7,8-dihydroneopterin triphosphate Kim et al. (2013)
3 pyruvyl tetrahydrobioptern Kamleh et al. (2009), 2-amino-4-hydroxypteridine Mertens and
Hammersmith (2007)
4 xanthopterin Kamleh et al. (2009)
5 drosopterin Kamleh et al. (2009), Kim et al. (2013)
6 isoxanthopterin Ziegler (2003)