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Sökning: onr:"swepub:oai:gup.ub.gu.se/317859" > Ten years of demogr...

LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00004849naa a2200469 4500
001oai:gup.ub.gu.se/317859
003SwePub
008240528s2022 | |||||||||||000 ||eng|
0247 a https://gup.ub.gu.se/publication/3178592 URI
0247 a https://doi.org/10.1111/eva.134282 DOI
040 a (SwePub)gu
041 a eng
042 9 SwePub
072 7a ref2 swepub-contenttype
072 7a art2 swepub-publicationtype
1001 a De Jode, Aurélienu Gothenburg University,Göteborgs universitet,Institutionen för marina vetenskaper, Tjärnö marinlaboratoriet,Department of marine sciences, Tjärnö Marine Laboratory4 aut0 (Swepub:gu)x-dejau
2451 0a Ten years of demographic modelling of divergence and speciation in the sea
264 c 2022-06-26
264 1b Wiley,c 2022
520 a Understanding population divergence that eventually leads to speciation is essential for evolutionary biology. High species diversity in the sea was regarded as a paradox when strict allopatry was considered necessary for most speciation events because geographical barriers seemed largely absent in the sea, and many marine species have high dispersal capacities. Combining genome-wide data with demographic modelling to infer the demographic history of divergence has introduced new ways to address this classical issue. These models assume an ancestral population that splits into two subpopulations diverging according to different scenarios that allow tests for periods of gene flow. Models can also test for heterogeneities in population sizes and migration rates along the genome to account, respectively, for background selection and selection against introgressed ancestry. To investigate how barriers to gene flow arise in the sea, we compiled studies modelling the demographic history of divergence in marine organisms and extracted preferred demographic scenarios together with estimates of demographic parameters. These studies show that geographical barriers to gene flow do exist in the sea but that divergence can also occur without strict isolation. Heterogeneity of gene flow was detected in most population pairs suggesting the predominance of semipermeable barriers during divergence. We found a weak positive relationship between the fraction of the genome experiencing reduced gene flow and levels of genome-wide differentiation. Furthermore, we found that the upper bound of the ‘grey zone of speciation’ for our dataset extended beyond that found before, implying that gene flow between diverging taxa is possible at higher levels of divergence than previously thought. Finally, we list recommendations for further strengthening the use of demographic modelling in speciation research. These include a more balanced representation of taxa, more consistent and comprehensive modelling, clear reporting of results and simulation studies to rule out nonbiological explanations for general results.
650 7a NATURVETENSKAPx Biologix Evolutionsbiologi0 (SwePub)106152 hsv//swe
650 7a NATURAL SCIENCESx Biological Sciencesx Evolutionary Biology0 (SwePub)106152 hsv//eng
650 7a NATURVETENSKAPx Biologix Genetik0 (SwePub)106092 hsv//swe
650 7a NATURAL SCIENCESx Biological Sciencesx Genetics0 (SwePub)106092 hsv//eng
653 a demographic inference
653 a grey zone of speciation
653 a heterogeneous gene flow
653 a marine speciation
653 a primary and secondary contact
653 a reproductive isolation
7001 a Le Moan, Alanu Gothenburg University,Göteborgs universitet,Institutionen för marina vetenskaper, Tjärnö marinlaboratoriet,Department of marine sciences, Tjärnö Marine Laboratory4 aut0 (Swepub:gu)xleala
7001 a Johannesson, Kerstin,d 1955u Gothenburg University,Göteborgs universitet,Institutionen för marina vetenskaper, Tjärnö marinlaboratoriet,Department of marine sciences, Tjärnö Marine Laboratory4 aut0 (Swepub:gu)xjoker
7001 a Faria, Rui4 aut
7001 a Stankowski, Sean4 aut
7001 a Westram, Anja Marie,d 19834 aut
7001 a Butlin, Roger,d 1955u Gothenburg University,Göteborgs universitet,Institutionen för marina vetenskaper, Tjärnö marinlaboratoriet,Department of marine sciences, Tjärnö Marine Laboratory4 aut0 (Swepub:gu)xbutro
7001 a Rafajlović, Marina,d 1983u Gothenburg University,Göteborgs universitet,Institutionen för marina vetenskaper,Department of marine sciences4 aut0 (Swepub:gu)xrafma
7001 a Fraïsse, Christelle4 aut
7102 a Göteborgs universitetb Institutionen för marina vetenskaper, Tjärnö marinlaboratoriet4 org
7730 t Evolutionary Applicationsd : Wileyg 16:2, s. 542-59q 16:2<542-59x 1752-4571
8564 8u https://gup.ub.gu.se/publication/317859
8564 8u https://doi.org/10.1111/eva.13428

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