ArticleBMC evolutionary biology2016
Inconsistent phylogeographic pattern between a sperm dependent fish and its host: in situ hybridization vs dispersal.
Article in BMC evolutionary biology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed.
- Topological and variational modularity: A case study using the pectoral girdle across the Chrosomus eos-neogaeus hybridization complex.Anatomical record (Hoboken, N.J. : 2007) · 2026Article
- Asexuality shapes traits in a hybrid fish.Nature communications · 2024Article
- Using asexual vertebrates to study genome evolution and animal physiology: Banded (Evolutionary applications · 2020Article
- Inferring responses to climate warming from latitudinal pattern of clonal hybridization.Ecology and evolution · 2020Article
- Sperm-dependent asexual hybrids determine competition among sexual species.Scientific reports · 2019Article
- The effects of allospecific mitochondrial genome on the fitness of northern redbelly dace (Ecology and evolution · 2018Article
- Article
- Imitating the cost of males: A hypothesis for coexistence of all-female sperm-dependent species and their sexual host.Ecology and evolution · 2018Article
- Article
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Authors and funding
3 authors.
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Abstract
backgroundCo-dispersal of sperm-dependent hybrids and their sexual relatives is expected to result in consistent spatial patterns between assemblages of hybrids and genetic structure of parental species. However, local hybridization events may blur this signal as assemblages could be organized under different connectivity constraints. This study aims at testing the hypothesis of local hybridization events by comparing the assemblage of hybrid fish Chrosomus eos-neogaeus to the genetic diversity of one of its parental species, Chrosomus eos.
resultsAn extensive survey performed on a total of 132 sites located in two regions of Southern Quebec (West-Qc and East-Qc) revealed a distinct organization of hybrid lineages. One of the six hybrid lineages detected in West-Qc is widespread throughout this region resulting in a low α-diversity (1.38) and β-diversity (4.35). On the other hand, 36 hybrid lineages were detected in East-Qc and displayed narrow geographic distributions leading to a high α-diversity (2.30) and β-diversity (15.68). In addition, the C. eos multilocus haplotype of several of these hybrids is assigned to their respective sympatric C. eos population. Finally, contrasting with hybrids, the paternal species C. eos displayed a higher ρST in West-Qc (0.2300) than in East-Qc (0.0734).
conclusionThe unusually high diversity of hybrid lineages in East-Qc as well as the spatial organization and the close genetic relationship with C. eos sympatric populations support the hypothesis that multiple hybridization events occurred in situ. These findings coupled to the near absence of the maternal species Chrosomus neogeaus suggest that the decline of this species could be the trigger event at the origin of the high rates of spontaneous hybridization in this region.
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