Palaeogenomic analysis of black rat (Rattus rattus) reveals multiple European introductions associated with human economic history

Abstract The distribution of the black rat ( Rattus rattus ) has been heavily influenced by its association with humans. The dispersal history of this non-native commensal rodent across Europe, however, remains poorly understood, and different introductions may have occurred during the Roman and med...

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Main Authors: Yu, He, Jamieson, Alexandra, Hulme-Beaman, Ardern, Conroy, Chris J., Knight, Becky, Speller, Camilla, Al-Jarah, Hiba, Eager, Heidi, Trinks, Alexandra, Adikari, Gamini, Baron, Henriette, Böhlendorf-Arslan, Beate, Bohingamuwa, Wijerathne, Crowther, Alison, Cucchi, Thomas, Esser, Kinie, Fleisher, Jeffrey, Gidney, Louisa, Gladilina, Elena, Gol’din, Pavel, Goodman, Steven M., Hamilton-Dyer, Sheila, Helm, Richard, Hillman, Chris, Kallala, Nabil, Kivikero, Hanna, Kovács, Zsófia E., Kunst, Günther Karl, Kyselý, René, Linderholm, Anna, Maraoui-Telmini, Bouthéina, Morales-Muñiz, Arturo, Nabais, Mariana, O'Connor, Terry, Oueslati, Tarek, Morales, Eréndira M. Quintana, Pasda, Kerstin, Perera, Jude, Perera, Nimal, Radbauer, Silvia, Ramon, Joan, Rannamäe, Eve, Grego, Joan Sanmartí, Treasure, Edward, Valenzuela-Lamas, Silvia, van der Jagt, Inge, Van Neer, Wim, Vigne, Jean-Denis, Walker, Thomas, Wynne-Jones, Stephanie
Format: Report
Language:English
Published: 2021
Subjects:
COVID-19
Coronavirus
Rattus rattus
Online Access:https://hdl.handle.net/2123/26575
https://doi.org/10.1101/2021.04.14.439553
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Summary:Abstract The distribution of the black rat ( Rattus rattus ) has been heavily influenced by its association with humans. The dispersal history of this non-native commensal rodent across Europe, however, remains poorly understood, and different introductions may have occurred during the Roman and medieval periods. Here, in order to reconstruct the population history of European black rats, we generated a de novo genome assembly of the black rat, 67 ancient black rat mitogenomes and 36 ancient nuclear genomes from sites spanning the 1 st -17 th centuries CE in Europe and North Africa. Analyses of mitochondrial DNA confirm that black rats were introduced into the Mediterranean and Europe from Southwest Asia. Genomic analyses of the ancient rats reveal a population turnover in temperate Europe between the 6 th and 10 th centuries CE, coincident with an archaeologically attested decline in the black rat population. The near disappearance and re-emergence of black rats in Europe may have been the result of the breakdown of the Roman Empire, the First Plague Pandemic, and/or post-Roman climatic cooling.

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