Time to spread your wings: A review of the avian ancient DNA field

Ancient DNA (aDNA) has the ability to inform the evolutionary history of both extant and extinct taxa; however, the use of aDNA in the study of avian evolution is lacking in comparison to other vertebrates, despite birds being one of the most species-rich vertebrate classes. Here, we review the fiel...

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Main Authors: Grealy, Alicia, Rawlence, N., Bunce, Michael
Format: Journal Article
Published: 2017
Online Access:http://hdl.handle.net/20.500.11937/56371
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author Grealy, Alicia
Rawlence, N.
Bunce, Michael
author_facet Grealy, Alicia
Rawlence, N.
Bunce, Michael
author_sort Grealy, Alicia
building Curtin Institutional Repository
collection Online Access
description Ancient DNA (aDNA) has the ability to inform the evolutionary history of both extant and extinct taxa; however, the use of aDNA in the study of avian evolution is lacking in comparison to other vertebrates, despite birds being one of the most species-rich vertebrate classes. Here, we review the field of “avian ancient DNA” by summarising the past three decades of literature on this topic. Most studies over this time have used avian aDNA to reconstruct phylogenetic relationships and clarify taxonomy based on the sequencing of a few mitochondrial loci, but recent studies are moving toward using a comparative genomics approach to address developmental and functional questions. Applying aDNA analysis with more practical outcomes in mind (such as managing conservation) is another increasingly popular trend among studies that utilise avian aDNA, but the majority of these have yet to influence management policy. We find that while there have been advances in extracting aDNA from a variety of avian substrates including eggshell, feathers, and coprolites, there is a bias in the temporal focus; the majority of the ca. 150 studies reviewed here obtained aDNA from late Holocene (100–1000 yBP) material, with few studies investigating Pleistocene-aged material. In addition, we identify and discuss several other issues within the field that require future attention. With more than one quarter of Holocene bird extinctions occurring in the last several hundred years, it is more important than ever to understand the mechanisms driving the evolution and extinction of bird species through the use of aDNA.
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spelling curtin-20.500.11937-563712021-01-13T03:09:38Z Time to spread your wings: A review of the avian ancient DNA field Grealy, Alicia Rawlence, N. Bunce, Michael Ancient DNA (aDNA) has the ability to inform the evolutionary history of both extant and extinct taxa; however, the use of aDNA in the study of avian evolution is lacking in comparison to other vertebrates, despite birds being one of the most species-rich vertebrate classes. Here, we review the field of “avian ancient DNA” by summarising the past three decades of literature on this topic. Most studies over this time have used avian aDNA to reconstruct phylogenetic relationships and clarify taxonomy based on the sequencing of a few mitochondrial loci, but recent studies are moving toward using a comparative genomics approach to address developmental and functional questions. Applying aDNA analysis with more practical outcomes in mind (such as managing conservation) is another increasingly popular trend among studies that utilise avian aDNA, but the majority of these have yet to influence management policy. We find that while there have been advances in extracting aDNA from a variety of avian substrates including eggshell, feathers, and coprolites, there is a bias in the temporal focus; the majority of the ca. 150 studies reviewed here obtained aDNA from late Holocene (100–1000 yBP) material, with few studies investigating Pleistocene-aged material. In addition, we identify and discuss several other issues within the field that require future attention. With more than one quarter of Holocene bird extinctions occurring in the last several hundred years, it is more important than ever to understand the mechanisms driving the evolution and extinction of bird species through the use of aDNA. 2017 Journal Article http://hdl.handle.net/20.500.11937/56371 10.3390/genes8070184 http://creativecommons.org/licenses/by/4.0/ fulltext
spellingShingle Grealy, Alicia
Rawlence, N.
Bunce, Michael
Time to spread your wings: A review of the avian ancient DNA field
title Time to spread your wings: A review of the avian ancient DNA field
title_full Time to spread your wings: A review of the avian ancient DNA field
title_fullStr Time to spread your wings: A review of the avian ancient DNA field
title_full_unstemmed Time to spread your wings: A review of the avian ancient DNA field
title_short Time to spread your wings: A review of the avian ancient DNA field
title_sort time to spread your wings: a review of the avian ancient dna field
url http://hdl.handle.net/20.500.11937/56371