The Sulawesi Thrush (Cataponera turdoides; Aves: Passeriformes) belongs to the genus Turdus
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The Asian and Australo-Papuan faunas meet and intermix across the islands of Wallacea. Untangling the origins and relationships of the species inhabiting these archipelagos is an ongoing project that has lasted for well over a century. In recent years, molecular phylogenetic studies have made considerable progress in clarifying the affinities of enigmatic Wallacean taxa, but taxonomic riddles remain, even in groups as well studied as birds. Such is the case with Sulawesi Thrush Cataponera turdoides, a scarce and elusive montane songbird whose taxonomic placement has remained controversial since its description. To determine the evolutionary relationships of this monotypic genus, we obtained a museum specimen and employed whole-genome resequencing to generate a multi-locus dataset. Phylogenetic analyses were performed using UCEs, and individual mitochondrial and nuclear genes. We show that Cataponera is a true thrush of the large and geographically widespread genus Turdus. It belongs to a clade predominantly composed of migratory Palearctic species, but has no close relatives within that group. Sulawesi Thrush is one of only two members of the genus Turdus known to have crossed Wallace's Line to form resident populations.
|Status||Udgivet - 2022|
Genetic samples were generously provided by the American Museum of Natural History, New York (Paul Sweet, Tom Trombone, Brian Smith and Peter Capainolo), and the Swedish Museum of Natural History, Stockholm, Sweden (Ulf Johansson). We are grateful to Jon Fjeldså for contributing his illustration of Sulawesi Thrush. We thank Frederick Sheldon and an anonymous reviewer for their constructive comments on the manuscript. A.H.R. and K.A.J. acknowledge support from the Villum Foundation (Young Investigator Programme, project No. 15560). The authors acknowledge support from the National Genomics Infrastructure in Stockholm funded by Science for Life Laboratory, the Knut and Alice Wallenberg Foundation and the Swedish Research Council, and SNIC/Uppsala Multidisciplinary Center for Advanced Computational Science for assistance with massively parallel sequencing and access to the UPPMAX computational infrastructure.
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