Počet záznamů: 1
Patterns of gene flow and selection across multiple species of Acrocephalus warblers: footprints of parallel selection on the Z chromosome
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SYSNO ASEP 0460182 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Patterns of gene flow and selection across multiple species of Acrocephalus warblers: footprints of parallel selection on the Z chromosome Tvůrce(i) Reifová, R. (CZ)
Majerová, V. (CZ)
Reif, J. (CZ)
Ahola, M. (FI)
Lindholm, A. (FI)
Procházka, Petr (UBO-W) RID, ORCID, SAICelkový počet autorů 6 Zdroj.dok. BMC Evolutionary Biology. - : BioMed Central - ISSN 1471-2148
Roč. 16, č. 130 (2016), s. 130Poč.str. 12 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova Adaptive radiation ; Speciation ; Gene flow ; Parallel adaptive evolution ; Z chromosome ; Acrocephalus warblers Vědní obor RIV EG - Zoologie Institucionální podpora UBO-W - RVO:68081766 UT WOS 000378044600003 EID SCOPUS 84975852933 DOI 10.1186/s12862-016-0692-2 Anotace We analyzed nucleotide variation at eight nuclear loci in three hybridizing Acrocephalus species with overlapping breeding ranges in Europe. Using an isolation-with-migration model for multiple populations, we found evidence for unidirectional gene flow from A. scirpaceus to A. palustris and from A. palustris to A. dumetorum. Gene flow was higher between genetically more closely related A. scirpaceus and A. palustris than between ecologically more similar A. palustris and A. dumetorum, suggesting that gradual accumulation of intrinsic barriers rather than divergent ecological selection are more efficient in restricting interspecific gene flow in Acrocephalus warblers. Although levels of genetic differentiation between different species pairs were in general not correlated, we found signatures of apparently independent instances of positive selection at the same two Z-linked loci in multiple species. Our study brings the first evidence that gene flow occurred during Acrocephalus radiation and not only between sister species. Interspecific gene flow could thus be an important source of genetic variation in individual Acrocephalus species and could have accelerated adaptive evolution and speciation rate in this avian group by creating novel genetic combinations and new phenotypes. Independent instances of positive selection at the same loci in multiple species indicate an interesting possibility that the same loci might have contributed to reproductive isolation in several speciation events. Pracoviště Ústav biologie obratlovců Kontakt Hana Slabáková, slabakova@ivb.cz, Tel.: 543 422 524 Rok sběru 2017
Počet záznamů: 1