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Molecular Phylogeny and Evolutionary History of the Tit-Tyrants (Aves: Tyrannidae) by Michael S. Roy; Juan Carlos Torres-Mura; Fritz Hertel is a Biochemistry, Genetics and Molecular Biology article available to read on EtoBox.

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## Tit-tyrants of the genus Anairetes presently consist of six species; five inhabit various regions along the Andean cordillera of South America and one is endemic to the Juan Fernandez Islands off the coast of Chile. Data from mtDNA ND2 and Cyt b sequences were used to construct a phylogeny for all Anairetes species as well as Uromyias agilis, a closely related genus, and Stigmatura as an outgroup, to determine their relationships and history of radiation in South America. Results strongly supported the following paired relationships: A. nigrocristatus-A. reguloides, A. flavirostris-A. alpinus, and A. parulus-A. fernandezianus. This dataset, however, could not resolve basal nodes; therefore relationships among these pairs remains obscure. Moreover the genus Uromyias, controversially separated on morphological criteria from Anairetes, fell within the Anairetes clade, although its exact position could not be ascertained with confidence. The molecular data indicate that this group probably radiated within the past 2 million years, concomitant with highly accentuated cycles of global climatic change. Certain high altitude areas within the Andes may have been stable during global clim

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Author

Michael S. Roy; Juan Carlos Torres-Mura; Fritz Hertel

Publisher

Elsevier Science; Elsevier ; Elsevier Inc.; Elsevier BV (ISSN 1055-7903)

Published

1999

Language

EN

Field

Biochemistry, Genetics and Molecular Biology (Life Sciences)