Genomics reveal admixture and unexpected patterns of diversity in a parapatric pair of butterflies
We studied the evolutionary relationship of two widely distributed parapatric butterfly species, Melitaea athalia and Melitaea celadussa, using the ddRAD sequencing approach, as well as genital morphology and mtDNA data. M. athalia was retrieved as paraphyletic with respect to M. celadussa. Several cases of mito-nuclear discordance and morpho-genetic mismatch were found in the contact zone. A strongly diverged and marginally sympatric clade of M. athalia from the Balkans was revealed. An in-depth analysis of genomic structure detected high levels of admixture between M. athalia and M. celadussa at the contact zone, though not reaching the Balkan clade. The demo-graphic modelling of populations supported the intermediate genetic make-up of European M. atha-lia populations with regards to M. celadussa and the Balkan clade. However, the dissimilarity matrix of genotype data (PCoA) suggested the Balkan lineage having a genetic component that is unrelated to the athalia-celadussa group. Although narrowly sympatric, almost no signs of gene flow were found between the main M. athalia group and the Balkan clade. We propose two possible scenarios on the historical evolution of our model taxa and the role of the last glacial maximum in shaping their current distribution. Finally, we discuss the complexities regarding the taxonomic delimitation of parapatric taxa.
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Multidisciplinary Digital Publishing Institute
2021-12-17
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Subjects: | ddRAD sequencing, Parapatry, Paraphyletic species, Genomic admixture, Melitaea, Species delimitation, |
Online Access: | http://hdl.handle.net/10261/263663 http://dx.doi.org/10.13039/501100002341 http://dx.doi.org/10.13039/501100000780 |
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dig-ibe-es-10261-2636632022-03-11T03:26:29Z Genomics reveal admixture and unexpected patterns of diversity in a parapatric pair of butterflies Tahami, Mohadeseh Sadat Dincă, Vlad Min Lee, Kyung Vila, Roger Joshi, Mukta Heikkilä, Maria Dapporto, Leonardo Schmid, Sarah Huemer, Peter Mutanen, Marko Ministerio de Ciencia, Innovación y Universidades (España) European Commission Academy of Finland ddRAD sequencing Parapatry Paraphyletic species Genomic admixture Melitaea Species delimitation We studied the evolutionary relationship of two widely distributed parapatric butterfly species, Melitaea athalia and Melitaea celadussa, using the ddRAD sequencing approach, as well as genital morphology and mtDNA data. M. athalia was retrieved as paraphyletic with respect to M. celadussa. Several cases of mito-nuclear discordance and morpho-genetic mismatch were found in the contact zone. A strongly diverged and marginally sympatric clade of M. athalia from the Balkans was revealed. An in-depth analysis of genomic structure detected high levels of admixture between M. athalia and M. celadussa at the contact zone, though not reaching the Balkan clade. The demo-graphic modelling of populations supported the intermediate genetic make-up of European M. atha-lia populations with regards to M. celadussa and the Balkan clade. However, the dissimilarity matrix of genotype data (PCoA) suggested the Balkan lineage having a genetic component that is unrelated to the athalia-celadussa group. Although narrowly sympatric, almost no signs of gene flow were found between the main M. athalia group and the Balkan clade. We propose two possible scenarios on the historical evolution of our model taxa and the role of the last glacial maximum in shaping their current distribution. Finally, we discuss the complexities regarding the taxonomic delimitation of parapatric taxa. This research was funded by the Academy of Finland, grant numbers 314702 and 328895; the Kvantum Institute; the Ministerio de Ciencia e Innovación of Spain, grant number PID2019-107078GB-I00/AEI/10.13039/501100011033]; and supported by the project “Ricerca e conservazione sugli Impollinatori dell’Arcipelago Toscano e divulgazione sui Lepidotteri del parco”. 2022-03-10T12:40:24Z 2022-03-10T12:40:24Z 2021-12-17 2022-03-10T12:40:24Z artículo http://purl.org/coar/resource_type/c_6501 doi: 10.3390/genes12122009 issn: 2073-4425 Genes 12(12): 2009 (2021) http://hdl.handle.net/10261/263663 10.3390/genes12122009 http://dx.doi.org/10.13039/501100002341 http://dx.doi.org/10.13039/501100000780 #PLACEHOLDER_PARENT_METADATA_VALUE# #PLACEHOLDER_PARENT_METADATA_VALUE# #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-107078GB-I00/ES/GENOMICA DE LA ESPECIACION EN MARIPOSAS/ info:eu-repo/grantAgreement/EC/H2020/314702 info:eu-repo/grantAgreement/EC/H2020/328895 Publisher's version http://doi.org/10.3390/genes12122009 Sí open Multidisciplinary Digital Publishing Institute |
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ddRAD sequencing Parapatry Paraphyletic species Genomic admixture Melitaea Species delimitation ddRAD sequencing Parapatry Paraphyletic species Genomic admixture Melitaea Species delimitation |
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ddRAD sequencing Parapatry Paraphyletic species Genomic admixture Melitaea Species delimitation ddRAD sequencing Parapatry Paraphyletic species Genomic admixture Melitaea Species delimitation Tahami, Mohadeseh Sadat Dincă, Vlad Min Lee, Kyung Vila, Roger Joshi, Mukta Heikkilä, Maria Dapporto, Leonardo Schmid, Sarah Huemer, Peter Mutanen, Marko Genomics reveal admixture and unexpected patterns of diversity in a parapatric pair of butterflies |
description |
We studied the evolutionary relationship of two widely distributed parapatric butterfly species, Melitaea athalia and Melitaea celadussa, using the ddRAD sequencing approach, as well as genital morphology and mtDNA data. M. athalia was retrieved as paraphyletic with respect to M. celadussa. Several cases of mito-nuclear discordance and morpho-genetic mismatch were found in the contact zone. A strongly diverged and marginally sympatric clade of M. athalia from the Balkans was revealed. An in-depth analysis of genomic structure detected high levels of admixture between M. athalia and M. celadussa at the contact zone, though not reaching the Balkan clade. The demo-graphic modelling of populations supported the intermediate genetic make-up of European M. atha-lia populations with regards to M. celadussa and the Balkan clade. However, the dissimilarity matrix of genotype data (PCoA) suggested the Balkan lineage having a genetic component that is unrelated to the athalia-celadussa group. Although narrowly sympatric, almost no signs of gene flow were found between the main M. athalia group and the Balkan clade. We propose two possible scenarios on the historical evolution of our model taxa and the role of the last glacial maximum in shaping their current distribution. Finally, we discuss the complexities regarding the taxonomic delimitation of parapatric taxa. |
author2 |
Ministerio de Ciencia, Innovación y Universidades (España) |
author_facet |
Ministerio de Ciencia, Innovación y Universidades (España) Tahami, Mohadeseh Sadat Dincă, Vlad Min Lee, Kyung Vila, Roger Joshi, Mukta Heikkilä, Maria Dapporto, Leonardo Schmid, Sarah Huemer, Peter Mutanen, Marko |
format |
artículo |
topic_facet |
ddRAD sequencing Parapatry Paraphyletic species Genomic admixture Melitaea Species delimitation |
author |
Tahami, Mohadeseh Sadat Dincă, Vlad Min Lee, Kyung Vila, Roger Joshi, Mukta Heikkilä, Maria Dapporto, Leonardo Schmid, Sarah Huemer, Peter Mutanen, Marko |
author_sort |
Tahami, Mohadeseh Sadat |
title |
Genomics reveal admixture and unexpected patterns of diversity in a parapatric pair of butterflies |
title_short |
Genomics reveal admixture and unexpected patterns of diversity in a parapatric pair of butterflies |
title_full |
Genomics reveal admixture and unexpected patterns of diversity in a parapatric pair of butterflies |
title_fullStr |
Genomics reveal admixture and unexpected patterns of diversity in a parapatric pair of butterflies |
title_full_unstemmed |
Genomics reveal admixture and unexpected patterns of diversity in a parapatric pair of butterflies |
title_sort |
genomics reveal admixture and unexpected patterns of diversity in a parapatric pair of butterflies |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2021-12-17 |
url |
http://hdl.handle.net/10261/263663 http://dx.doi.org/10.13039/501100002341 http://dx.doi.org/10.13039/501100000780 |
work_keys_str_mv |
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1777668810690527232 |