Academic Journal
The genomic diversity of the Eliurus genus in northern Madagascar with a putative new species
| العنوان: | The genomic diversity of the Eliurus genus in northern Madagascar with a putative new species |
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| المؤلفون: | Sgarlata, Gabriele, Maria, Rasolondraibe, Emmanuel, Salmona, Jordi, Le Pors, Barbara, Ralantoharijaona, Tantely, Rakotonanahary, Ando, Jan, Fabien, Manzi, Sophie, Iribar, Amaia, Zaonarivelo, John, Rigobert, Volasoa Andriaholinirina, Nicole, Rasoloharijaona, Solofonirina, Chikhi, Lounès |
| المساهمون: | Instituto Gulbenkian de Ciência Oeiras (IGC), Fundação Calouste Gulbenkian, Société d'études ornithologiques de la Réunion (SEOR), Université de Mahajanga, Centre de Recherche sur la Biodiversité et l'Environnement (CRBE), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT), ANR-16-EBI3-0014,INFRAGECO,Inference, fragmentation, genomics and conservation(2016) |
| المصدر: | ISSN: 1055-7903. |
| بيانات النشر: | HAL CCSD Elsevier |
| سنة النشر: | 2024 |
| المجموعة: | Université Toulouse III - Paul Sabatier: HAL-UPS |
| مصطلحات موضوعية: | Species delimitation, Phylogenomic, Multi-species coalescence, Rodents, Biodiversity, RAD-seq, [SDV.BID.SPT]Life Sciences [q-bio]/Biodiversity/Systematics, Phylogenetics and taxonomy, [SDV.GEN.GA]Life Sciences [q-bio]/Genetics/Animal genetics, [SDV.GEN.GPO]Life Sciences [q-bio]/Genetics/Populations and Evolution [q-bio.PE] |
| الوصف: | International audience ; Madagascar exhibits extraordinarily high level of species richness and endemism, while being severely threatened by habitat loss and fragmentation (HL&F). In front of these threats to biodiversity, conservation effort can be directed, for instance, in the documentation of species that are still unknown to science, or in investigating how species respond to HL&F. The tufted-tail rats genus (Eliurus spp.) is the most speciose genus of endemic rodents in Madagascar, with 13 described species, which occupy two major habitat types: dry or humid forests. The large species diversity and association to specific habitat types make the Eliurus genus a suitable model for investigating species adaptation to new environments, as well as response to HL&F (dry vs humid). In the present study, we investigated Eliurus spp. genomic diversity across northern Madagascar, a region covered by both dry and humid fragmented forests. From the mitochondrial DNA (mtDNA) and nuclear genomic (RAD-seq) data of 124 Eliurus individuals sampled in poorly studied forests of northern Madagascar, we identified an undescribed Eliurus taxon (Eliurus sp. nova). We tested the hypothesis of a new Eliurus species using several approaches: i) DNA barcoding; ii) phylogenetic inferences; iii) species delimitation tests based on the Multi-Species Coalescent (MSC) model, iv) genealogical divergence index (gdi); v) an ad-hoc test of isolation-by-distance within versus between sister-taxa, vi) comparisons of %GC content patterns and vii) morphological analyses. All analyses support the recognition of the undescribed lineage as a putative distinct species. In addition, we show that Eliurus myoxinus, a species known from the dry forests of western Madagascar, is, surprisingly, found mostly in humid forests in northern Madagascar. In conclusion, we discuss the implications of such findings in the context of Eliurus species evolution and diversification, and use the distribution of northern Eliurus species as a proxy for ... |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| DOI: | 10.1016/j.ympev.2023.107997 |
| الاتاحة: | https://hal.science/hal-04767152 https://hal.science/hal-04767152v1/document https://hal.science/hal-04767152v1/file/MPE_2024_Sgarlata_Eliurus.pdf https://doi.org/10.1016/j.ympev.2023.107997 |
| Rights: | info:eu-repo/semantics/OpenAccess |
| رقم الانضمام: | edsbas.D2C71A6E |
| قاعدة البيانات: | BASE |
| DOI: | 10.1016/j.ympev.2023.107997 |
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