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The Holarctic phasianid clade of the grouse and ptarmigan has received substantial attention in areas such as evolution of mating systems, display behavior, and population ecology related to their conservation and management as wild game species. There are multiple molecular phylogenetic studies that focus on grouse and ptarmigan. In spite of this, there is little consensus regarding historical relationships,...
Background Determining the evolutionary relationships among the major lineages of extant birds has been one of the biggest challenges in systematic biology. To address this challenge, we assembled or collected the genomes of 48 avian species spanning most orders of birds, including all Neognathae and two of the five Palaeognathae orders. We used these genomes to construct a genome-scale avian...
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