Molecular systematics and plumage evolution in the monotypic obligate army-ant following genus Skutchia (Thamnophilidae)
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University of California Press
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We obtained 1403 base pairs of mtDNA sequences
of cyt b and ND2 from four specimens of the Pale-faced Bareeye
(Skutchia borbae, representing a monotypic genus of the
Thamnophilidae) and evaluated for the first time the species’
phylogenetic position among core obligate army-ant-following
antbirds. All trees placed Skutchia borbae consistently and with
high statistical support as sister to the Black-spotted Bare-eye
(Phlegopsis nigromaculata) in a clade with the two known species
of Phlegopsis. This result supports the return of S. borbae
to the genus Phlegopsis, where it was originally placed. When
the plumage characters originally used to diagnose Skutchia are
mapped onto the phylogeny, it is evident that they have evolved
convergently multiple times in core obligate army-ant-following
antbirds. This discovery further supports merging Skutchia with
Phlegopsis.
Citação
ALEIXO, Alexandre; BURLAMAQUI, T.; SCHNEIDER, M. P. C.; GONCALVES, E. C. Molecular systematics and plumage evolution in the monotypic obligate army-ant following genus Skutchia (Thamnophilidae). The Condor, v. 111, n. 2, p. 382-387, may 2009. DOI 10.1525/cond.2009.080097.