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Fig. 6. Phylogeny of butterfly opsins. The neighbor-joining tree (shown) was
constructed using a first plus second nucleotide sites and Tamura-Nei
correction. Bootstrap support values (out of 500 replicates) for the
neighbor-joining tree are shown above the nodes and bootstrap support (out of
100 replicates) for the stepmatrix-weighted maximum parsimony tree are below.
References for additional 
max values are given in Arikawa
et al. (1999) and Briscoe
(2001). GenBank accession
numbers are: Heliconius sara (OPS1, AF126753;
Hsu et al., 2001), Manduca
sexta (1, L78080; 2, L780801; 3, AD001674;
Chase et al., 1997),
Papilio glaucus (PglRh1, AF077189; PglRh2, AF077190; PglRh3,
AF067080; PglRh4, AF077193; PglRh5, AF077191; PglRh6, AF077192;
Briscoe, 2000), Papilio
xuthus (PxRh1, AB007423; PxRh2, AB007424; PxRh3, AB007425;
Kitamoto et al., 1998),
Galleria mellonella (AF385330), Precis coenia (AF385332),
Spodoptera exigua (AF385331), Vanessa cardui (AF385333;
Briscoe, 2001), Bombyx
mori (AB064496; Shimizu et al.,
2001).
