Genomic Footprints of Ancient Multi-Species Introgression Events Among Allopatric Australo-Papuan Butcherbird Species

IF 3.4 2区 环境科学与生态学 Q2 ECOLOGY
Anna M. Kearns, Heather Johnston, Jessica Fenker, James Nicholls, Claire Yang, Andreas Zwick, Bulisa Iova, Ian J. Mason, Alex Drew, Leo Joseph
{"title":"Genomic Footprints of Ancient Multi-Species Introgression Events Among Allopatric Australo-Papuan Butcherbird Species","authors":"Anna M. Kearns,&nbsp;Heather Johnston,&nbsp;Jessica Fenker,&nbsp;James Nicholls,&nbsp;Claire Yang,&nbsp;Andreas Zwick,&nbsp;Bulisa Iova,&nbsp;Ian J. Mason,&nbsp;Alex Drew,&nbsp;Leo Joseph","doi":"10.1111/jbi.15141","DOIUrl":null,"url":null,"abstract":"<div>\n \n \n <section>\n \n <h3> Aim</h3>\n \n <p>Climate change has influenced the evolution of the world's biota, shaping species distributions, promoting diversification and causing extinctions. The turbulent climatic oscillations of the Pleistocene, which caused repeated periods of isolation and secondary contact, have left lasting signatures on the genomes of species across the world. The resultant reticulate histories are difficult to untangle, yet offer unique insights, capturing responses to climate change that would otherwise be undetected and providing empirical case-studies of the impact of introgression tens of thousands of years later. Here, we explore such dynamics using three currently allopatric species of Australian butcherbirds. We specifically test long-standing biogeographic hypotheses concerning the role of intermittent Pleistocene land-bridges and climatic oscillations in facilitating secondary contact.</p>\n </section>\n \n <section>\n \n <h3> Location</h3>\n \n <p>Australia and New Guinea.</p>\n </section>\n \n <section>\n \n <h3> Taxon</h3>\n \n <p>Silver-backed Butcherbird <i>Cracticus argenteus</i>, Black-backed Butcherbird <i>Cracticus mentalis</i> and Grey Butcherbird <i>Cracticus torquatus</i> (Passeriformes: Artamidae).</p>\n </section>\n \n <section>\n \n <h3> Methods</h3>\n \n <p>We generated genomic data from museum specimens to infer species relationships, test taxonomic boundaries and elucidate the history of gene flow in this species complex.</p>\n </section>\n \n <section>\n \n <h3> Results</h3>\n \n <p>We uncovered genomic evidence of multiple ancient introgressions into savannah-adapted <i>C. argenteus</i> from both savannah-adapted <i>C. mentalis</i> and more arid-tolerant <i>C. torquatus</i> despite their current allopatry. This supports biogeographic hypotheses concerning both the role of the Arafura Shelf in maintaining genetic connectivity between savannah-adapted species in Australia and New Guinea and the expansion of aridity during glacial maxima in promoting range expansions in arid-tolerant species.</p>\n </section>\n \n <section>\n \n <h3> Main Conclusions</h3>\n \n <p>Our data showcase how genomic signatures retained over generations can reveal unexpected insights about evolutionary history, as well as expand our understanding of how guilds of similarly adapted species may have responded concordantly to paleoclimate change. These insights have important implications for biodiversity conservation, increasing our understanding of how secondary contact driven by climate change might impact species in the future.</p>\n </section>\n </div>","PeriodicalId":15299,"journal":{"name":"Journal of Biogeography","volume":"52 7","pages":""},"PeriodicalIF":3.4000,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jbi.15141","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Biogeography","FirstCategoryId":"93","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1111/jbi.15141","RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ECOLOGY","Score":null,"Total":0}
引用次数: 0

Abstract

Aim

Climate change has influenced the evolution of the world's biota, shaping species distributions, promoting diversification and causing extinctions. The turbulent climatic oscillations of the Pleistocene, which caused repeated periods of isolation and secondary contact, have left lasting signatures on the genomes of species across the world. The resultant reticulate histories are difficult to untangle, yet offer unique insights, capturing responses to climate change that would otherwise be undetected and providing empirical case-studies of the impact of introgression tens of thousands of years later. Here, we explore such dynamics using three currently allopatric species of Australian butcherbirds. We specifically test long-standing biogeographic hypotheses concerning the role of intermittent Pleistocene land-bridges and climatic oscillations in facilitating secondary contact.

Location

Australia and New Guinea.

Taxon

Silver-backed Butcherbird Cracticus argenteus, Black-backed Butcherbird Cracticus mentalis and Grey Butcherbird Cracticus torquatus (Passeriformes: Artamidae).

Methods

We generated genomic data from museum specimens to infer species relationships, test taxonomic boundaries and elucidate the history of gene flow in this species complex.

Results

We uncovered genomic evidence of multiple ancient introgressions into savannah-adapted C. argenteus from both savannah-adapted C. mentalis and more arid-tolerant C. torquatus despite their current allopatry. This supports biogeographic hypotheses concerning both the role of the Arafura Shelf in maintaining genetic connectivity between savannah-adapted species in Australia and New Guinea and the expansion of aridity during glacial maxima in promoting range expansions in arid-tolerant species.

Main Conclusions

Our data showcase how genomic signatures retained over generations can reveal unexpected insights about evolutionary history, as well as expand our understanding of how guilds of similarly adapted species may have responded concordantly to paleoclimate change. These insights have important implications for biodiversity conservation, increasing our understanding of how secondary contact driven by climate change might impact species in the future.

Abstract Image

澳洲-巴布亚异域肉鸡物种间古代多物种入侵事件的基因组足迹
气候变化影响了世界生物群的进化,塑造了物种分布,促进了物种多样化,并导致了物种灭绝。更新世动荡的气候振荡造成了反复的隔离和二次接触,在世界各地的物种基因组上留下了持久的印记。由此产生的网状历史很难理清,但却提供了独特的见解,捕捉了对气候变化的反应,否则就不会被发现,并提供了数万年后渗入影响的实证案例研究。在这里,我们用三种目前异域分布的澳大利亚屠夫鸟来探索这种动态。我们特别测试了关于间歇性更新世陆桥和气候振荡在促进二次接触中的作用的长期存在的生物地理学假设。位置:澳大利亚和新几内亚。银背肉鸡、黑背肉鸡、灰背肉鸡(飞蛾目:棉蚜科)。方法从博物馆标本中提取基因组数据,推断物种关系,测试分类界限,阐明该物种复合体的基因流动历史。结果我们发现了多个古老的证据,证明草原适应的C. mentalis和更耐旱的C. torquatus尽管目前属于同种异种,但仍从草原适应的C. mentalis和更耐旱的C. torquatus向草原适应的C. argenteus遗传。这支持了关于阿拉法特拉大陆架在维持澳大利亚和新几内亚草原适应物种之间遗传连通性方面的作用,以及冰川高峰期间干旱的扩大在促进耐旱物种范围扩大方面的作用的生物地理学假设。我们的数据展示了代代相传的基因组特征如何揭示关于进化史的意想不到的见解,并扩展了我们对类似适应物种的行会如何协调地应对古气候变化的理解。这些见解对生物多样性保护具有重要意义,增加了我们对气候变化驱动的二次接触如何影响未来物种的理解。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
Journal of Biogeography
Journal of Biogeography 环境科学-生态学
CiteScore
7.70
自引率
5.10%
发文量
203
审稿时长
2.2 months
期刊介绍: Papers dealing with all aspects of spatial, ecological and historical biogeography are considered for publication in Journal of Biogeography. The mission of the journal is to contribute to the growth and societal relevance of the discipline of biogeography through its role in the dissemination of biogeographical research.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信