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The High-Quality Genome Sequence of the Oceanic Island Endemic Species Drosophila guanche Reveals Signals of Adaptive Evolution in Genes Related to Flight and Genome Stability
Drosophila guanche is a member of the obscura group that originated in the Canary Islands archipelago upon its colonization by D. subobscura. It evolved into a new species in the laurisilva, a laurel forest present in wet regions that in the islands have only minor long-term weather fluctuations. Oc...
Autores principales: | , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Oxford University Press
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6101566/ https://www.ncbi.nlm.nih.gov/pubmed/29947749 http://dx.doi.org/10.1093/gbe/evy135 |
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author | Puerma, Eva Orengo, Dorcas J Cruz, Fernando Gómez-Garrido, Jèssica Librado, Pablo Salguero, David Papaceit, Montserrat Gut, Marta Segarra, Carmen Alioto, Tyler S Aguadé, Montserrat |
author_facet | Puerma, Eva Orengo, Dorcas J Cruz, Fernando Gómez-Garrido, Jèssica Librado, Pablo Salguero, David Papaceit, Montserrat Gut, Marta Segarra, Carmen Alioto, Tyler S Aguadé, Montserrat |
author_sort | Puerma, Eva |
collection | PubMed |
description | Drosophila guanche is a member of the obscura group that originated in the Canary Islands archipelago upon its colonization by D. subobscura. It evolved into a new species in the laurisilva, a laurel forest present in wet regions that in the islands have only minor long-term weather fluctuations. Oceanic island endemic species such as D. guanche can become model species to investigate not only the relative role of drift and adaptation in speciation processes but also how population size affects nucleotide variation. Moreover, the previous identification of two satellite DNAs in D. guanche makes this species attractive for studying how centromeric DNA evolves. As a prerequisite for its establishment as a model species suitable to address all these questions, we generated a high-quality D. guanche genome sequence composed of 42 cytologically mapped scaffolds, which are assembled into six super-scaffolds (one per chromosome). The comparative analysis of the D. guanche proteome with that of twelve other Drosophila species identified 151 genes that were subject to adaptive evolution in the D. guanche lineage, with a subset of them being involved in flight and genome stability. For example, the Centromere Identifier (CID) protein, directly interacting with centromeric satellite DNA, shows signals of adaptation in this species. Both genomic analyses and FISH of the two satellites would support an ongoing replacement of centromeric satellite DNA in D. guanche. |
format | Online Article Text |
id | pubmed-6101566 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Oxford University Press |
record_format | MEDLINE/PubMed |
spelling | pubmed-61015662018-08-27 The High-Quality Genome Sequence of the Oceanic Island Endemic Species Drosophila guanche Reveals Signals of Adaptive Evolution in Genes Related to Flight and Genome Stability Puerma, Eva Orengo, Dorcas J Cruz, Fernando Gómez-Garrido, Jèssica Librado, Pablo Salguero, David Papaceit, Montserrat Gut, Marta Segarra, Carmen Alioto, Tyler S Aguadé, Montserrat Genome Biol Evol Research Article Drosophila guanche is a member of the obscura group that originated in the Canary Islands archipelago upon its colonization by D. subobscura. It evolved into a new species in the laurisilva, a laurel forest present in wet regions that in the islands have only minor long-term weather fluctuations. Oceanic island endemic species such as D. guanche can become model species to investigate not only the relative role of drift and adaptation in speciation processes but also how population size affects nucleotide variation. Moreover, the previous identification of two satellite DNAs in D. guanche makes this species attractive for studying how centromeric DNA evolves. As a prerequisite for its establishment as a model species suitable to address all these questions, we generated a high-quality D. guanche genome sequence composed of 42 cytologically mapped scaffolds, which are assembled into six super-scaffolds (one per chromosome). The comparative analysis of the D. guanche proteome with that of twelve other Drosophila species identified 151 genes that were subject to adaptive evolution in the D. guanche lineage, with a subset of them being involved in flight and genome stability. For example, the Centromere Identifier (CID) protein, directly interacting with centromeric satellite DNA, shows signals of adaptation in this species. Both genomic analyses and FISH of the two satellites would support an ongoing replacement of centromeric satellite DNA in D. guanche. Oxford University Press 2018-06-27 /pmc/articles/PMC6101566/ /pubmed/29947749 http://dx.doi.org/10.1093/gbe/evy135 Text en © The Author(s) 2018. Published by Oxford University Press on behalf of the Society for Molecular Biology and Evolution. http://creativecommons.org/licenses/by-nc/4.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited. For commercial re-use, please contact journals.permissions@oup.com |
spellingShingle | Research Article Puerma, Eva Orengo, Dorcas J Cruz, Fernando Gómez-Garrido, Jèssica Librado, Pablo Salguero, David Papaceit, Montserrat Gut, Marta Segarra, Carmen Alioto, Tyler S Aguadé, Montserrat The High-Quality Genome Sequence of the Oceanic Island Endemic Species Drosophila guanche Reveals Signals of Adaptive Evolution in Genes Related to Flight and Genome Stability |
title | The High-Quality Genome Sequence of the Oceanic Island Endemic Species Drosophila guanche Reveals Signals of Adaptive Evolution in Genes Related to Flight and Genome Stability |
title_full | The High-Quality Genome Sequence of the Oceanic Island Endemic Species Drosophila guanche Reveals Signals of Adaptive Evolution in Genes Related to Flight and Genome Stability |
title_fullStr | The High-Quality Genome Sequence of the Oceanic Island Endemic Species Drosophila guanche Reveals Signals of Adaptive Evolution in Genes Related to Flight and Genome Stability |
title_full_unstemmed | The High-Quality Genome Sequence of the Oceanic Island Endemic Species Drosophila guanche Reveals Signals of Adaptive Evolution in Genes Related to Flight and Genome Stability |
title_short | The High-Quality Genome Sequence of the Oceanic Island Endemic Species Drosophila guanche Reveals Signals of Adaptive Evolution in Genes Related to Flight and Genome Stability |
title_sort | high-quality genome sequence of the oceanic island endemic species drosophila guanche reveals signals of adaptive evolution in genes related to flight and genome stability |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6101566/ https://www.ncbi.nlm.nih.gov/pubmed/29947749 http://dx.doi.org/10.1093/gbe/evy135 |
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