@article{6ff3a2bd99f246b7982324fc53cf9a33,
title = "Lousy grouse: Comparing evolutionary patterns in Alaska galliform lice to understand host evolution and host–parasite interactions",
abstract = "Understanding both sides of host–parasite relationships can provide more complete insights into host and parasite biology in natural systems. For example, phylogenetic and population genetic comparisons between a group of hosts and their closely associated parasites can reveal patterns of host dispersal, interspecies interactions, and population structure that might not be evident from host data alone. These comparisons are also useful for understanding factors that drive host–parasite coevolutionary patterns (e.g., codivergence or host switching) over different periods of time. However, few studies have compared the evolutionary histories between multiple groups of parasites from the same group of hosts at a regional geographic scale. Here, we used genomic data to compare phylogenomic and population genomic patterns of Alaska ptarmigan and grouse species (Aves: Tetraoninae) and two genera of their associated feather lice: Lagopoecus and Goniodes. We used whole-genome sequencing to obtain hundreds of genes and thousands of single-nucleotide polymorphisms (SNPs) for the lice and double-digest restriction-associated DNA sequences to obtain SNPs from Alaska populations of two species of ptarmigan. We found that both genera of lice have some codivergence with their galliform hosts, but these relationships are primarily characterized by host switching and phylogenetic incongruence. Population structure was also uncorrelated between the hosts and lice. These patterns suggest that grouse, and ptarmigan in particular, share habitats and have likely had historical and ongoing dispersal within Alaska. However, the two genera of lice also have sufficient dissimilarities in the relationships with their hosts to suggest there are other factors, such as differences in louse dispersal ability, that shape the evolutionary patterns with their hosts.",
keywords = "Goniodes, Lagopoecus, coevolution, genomics, grouse, ptarmigan",
author = "Sweet, {Andrew D.} and Wilson, {Robert E.} and Sonsthagen, {Sarah A.} and Johnson, {Kevin P.}",
note = "Funding Information: Funding was provided by the U.S. Geological Survey Changing Arctic Ecosystems initiative through the Wildlife Program of the Ecosystem Mission Area and NSF DEB‐1239788, DEB‐1342604, and DEB‐1855812 to KPJ. Ptarmigan and grouse were collected under State of Alaska Department of Fish and Game Scientific Permits (15‐108, 16‐109, and 17‐109) and U.S. Geological Survey Alaska Science Center ACUC assurance plan code 2015‐03. We thank Ann Riddle‐Berntsen (University of Alaska Fairbanks) and Gabriel DeGange (University of Alaska Anchorage) for assistance processing samples. We thank Alvaro Hernandez and Chris Wright (Roy J. Carver Biotechnology Center, University of Illinois, Champaign, IL, USA) for their assistance with sequencing several of our louse samples. We are also grateful to Rebecca Kimball (University of Florida) for providing grouse phylogenies. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Funding Information: Funding was provided by the U.S. Geological Survey Changing Arctic Ecosystems initiative through the Wildlife Program of the Ecosystem Mission Area and NSF DEB-1239788, DEB-1342604, and DEB-1855812 to KPJ. Ptarmigan and grouse were collected under State of Alaska Department of Fish and Game Scientific Permits (15-108, 16-109, and 17-109) and U.S. Geological Survey Alaska Science Center ACUC assurance plan code 2015-03. We thank Ann Riddle-Berntsen (University of Alaska Fairbanks) and Gabriel DeGange (University of Alaska Anchorage) for assistance processing samples. We thank Alvaro Hernandez and Chris Wright (Roy J. Carver Biotechnology Center, University of Illinois, Champaign, IL, USA) for their assistance with sequencing several of our louse samples. We are also grateful to Rebecca Kimball (University of Florida) for providing grouse phylogenies. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Publisher Copyright: 2020 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. This article has been contributed to by US Government employees and their work is in the public domain in the USA.",
year = "2020",
month = aug,
day = "1",
doi = "10.1002/ece3.6545",
language = "English (US)",
volume = "10",
pages = "8379--8393",
journal = "Ecology and Evolution",
issn = "2045-7758",
publisher = "John Wiley & Sons, Ltd.",
number = "15",
}