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Phylogenetic relationships of Ceratitis fruit flies inferred from nuclear CAD and tango/ARNT gene fragments: Testing monophyly of the subgenera Ceratitis ( Ceratitis) and C. ( Pterandrus)
Ist Teil von
Molecular phylogenetics and evolution, 2009-11, Vol.53 (2), p.412-424
Ort / Verlag
United States: Elsevier Inc
Erscheinungsjahr
2009
Link zum Volltext
Quelle
Elsevier ScienceDirect Journals Complete
Beschreibungen/Notizen
Systematic studies of
Ceratitis (Tephritidae) fruit flies using molecular (i.e., COI, ND6, and
period genes) and morphological (plus host-use characters) data have recently challenged the monophyly of the subgenera
Ceratitis (
Ceratitis) and
Ceratitis (
Pterandrus). In this paper, we report on the phylogenetic utility of three single-copy nuclear gene regions (two non-overlapping fragments of the carbamoylphosphate synthetase,
CPS, locus of CAD, and a fragment of
tango) within these taxa and investigate evolutionary relationships based on a concatenated ca. 3.4
kb data set that includes the six protein encoding gene regions. Results indicate that the
CAD and
tango genes provide useful phylogenetic signal within the taxa and are compatible with the previously studied genes. The two subgenera, as currently classified, are not monophyletic. Our molecular phylogenetic analyses support a revised classification in which (1) the subgenus
C. (
Pterandrus) comprises two lineages called A and B, (2) the
C. (
Pterandrus) B species should be included in
C. (
Ceratitis), and (3) the newly defined subgenera
C. (
Pterandrus) (=
Pterandrus section A) and
C. (
Ceratitis) [=
C. (
Ceratitis)
+
C. (
Pterandrus) section B] are reciprocally monophyletic.