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Introgression Under...
Introgression Underlies Phylogenetic Uncertainty But Not Parallel Plumage Evolution in a Recent Songbird Radiation
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- Rancilhac, Loïs (författare)
- Uppsala universitet,Zooekologi,Animal Ecology, Department of Ecology and Genetics, Evolutionary Biology Centre, Uppsala University , Norbyvägen 18 D, 752 36 Uppsala , Sweden
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- Enbody, Erik D. (författare)
- Uppsala universitet,Institutionen för medicinsk biokemi och mikrobiologi,Department of Medical Biochemistry and Microbiology, Uppsala University , 751 23 Uppsala , Sweden;Biomolecular Engineering, University of California , 95064 Santa Cruz, CA , USA
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- Harris, Rebecca (författare)
- Department of Biology, University of Washington , Seattle, WA 98105 , USA
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- Saitoh, Takema (författare)
- Yamashina Institute for Ornithology , 115 Konoyama, Abiko, Chiba 270-1145 , Japan
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- Irestedt, Martin, 1968- (författare)
- Naturhistoriska riksmuseet,Enheten för bioinformatik och genetik,Department of Bioinformatics and Genetics, Swedish Museum of Natural History , P.O. Box 50007, 104 05 Stockholm , Sweden
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- Liu, Yang (författare)
- State Key Laboratory of Biocontrol, School of Ecology, Sun Yat-sen University , Shenzhen 518107 , China
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- Lei, Fumin (författare)
- Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences , 100101 Beijing , China
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- Andersson, Leif (författare)
- Uppsala universitet,Institutionen för medicinsk biokemi och mikrobiologi,Department of Medical Biochemistry and Microbiology, Uppsala University , 751 23 Uppsala , Sweden;Department of Veterinary Integrative Biosciences, Texas A&M University , College Station, TX 77843 , USA
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- Alström, Per, Professor (författare)
- Uppsala universitet,Zooekologi,Animal Ecology, Department of Ecology and Genetics, Evolutionary Biology Centre, Uppsala University , Norbyvägen 18 D, 752 36 Uppsala , Sweden;Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences , 100101 Beijing , China
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(creator_code:org_t)
- 2023
- 2023
- Engelska.
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Ingår i: Systematic Biology. - : Oxford University Press. - 1063-5157 .- 1076-836X.
- Relaterad länk:
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Abstract
Ämnesord
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- Instances of parallel phenotypic evolution offer great opportunities to understand the evolutionary processes underlying phenotypic changes. However, confirming parallel phenotypic evolution and studying its causes requires a robust phylogenetic framework. One such example is the “black-and-white wagtails,” a group of 5 species in the songbird genus Motacilla: 1 species, Motacilla alba, shows wide intra-specific plumage variation, while the 4r others form 2 pairs of very similar-looking species (M. aguimp + M. samveasnae and M. grandis + M. maderaspatensis, respectively). However, the 2 species in each of these pairs were not recovered as sisters in previous phylogenetic inferences. Their relationships varied depending on the markers used, suggesting that gene tree heterogeneity might have hampered accurate phylogenetic inference. Here, we use whole genome resequencing data to explore the phylogenetic relationships within this group, with a special emphasis on characterizing the extent of gene tree heterogeneity and its underlying causes. We first used multispecies coalescent methods to generate a “complete evidence” phylogenetic hypothesis based on genome-wide variants, while accounting for incomplete lineage sorting (ILS) and introgression. We then investigated the variation in phylogenetic signal across the genome to quantify the extent of discordance across genomic regions and test its underlying causes. We found that wagtail genomes are mosaics of regions supporting variable genealogies, because of ILS and inter-specific introgression. The most common topology across the genome, supporting M. alba and M. aguimp as sister species, appears to be influenced by ancient introgression. Additionally, we inferred another ancient introgression event, between M. alba and M. grandis. By combining results from multiple analyses, we propose a phylogenetic network for the black-and-white wagtails that confirms that similar phenotypes evolved in non-sister lineages, supporting parallel plumage evolution. Furthermore, the inferred reticulations do not connect species with similar plumage coloration, suggesting that introgression does not underlie parallel plumage evolution in this group. Our results demonstrate the importance of investing genome-wide patterns of gene tree heterogeneity to help understand the mechanisms underlying phenotypic evolution. [Gene tree heterogeneity; incomplete lineage sorting; introgression; parallel evolution; phylogenomics; plumage evolution; wagtails.]
Ämnesord
- NATURVETENSKAP -- Biologi -- Evolutionsbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Evolutionary Biology (hsv//eng)
- NATURVETENSKAP -- Biologi -- Biologisk systematik (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Biological Systematics (hsv//eng)
- NATURVETENSKAP -- Biologi -- Zoologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Zoology (hsv//eng)
Nyckelord
- Ecosystems and species history
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- art (ämneskategori)
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Rancilhac, Loïs
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Enbody, Erik D.
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Harris, Rebecca
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Saitoh, Takema
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Irestedt, Martin ...
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Liu, Yang
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Lei, Fumin
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Andersson, Leif
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Alström, Per, Pr ...
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