ArticleScientific reports2019
Population divergence and gene flow in two East Asian shorebirds on the verge of speciation.
Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
3 citing papers in PubMed.
- Divergent Selection in Low Recombination Regions Shapes the Genomic Islands in Two Incipient Shorebird Species.Molecular biology and evolution · 2024Article
- The conservation value of admixed phenotypes in a critically endangered species complex.Scientific reports · 2020Article
- Demographic Histories and Genome-Wide Patterns of Divergence in Incipient Species of Shorebirds.Frontiers in genetics · 2019Article
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Authors and funding
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Genetic isolation of populations over evolutionary time leads to the formation of independent species. We examined a pair of shorebirds - the Kentish Plover Charadrius alexandrinus and the enigmatic White-faced Plover C. dealbatus - which display strong plumage differentiation, yet show minimal genetic divergence based on previous mitochondrial and microsatellite work. Two scenarios may lead to this situation: (1) they represent clinal or poorly diverged populations with limited genomic differentiation despite substantial plumage variation, or (2) they are diverging taxa at the cusp of speciation, with ongoing limited gene flow obliterating signals of differentiation in traditional genetic markers. We compared the genotypes of 98 plovers (59 Kentish Plovers, 35 White-faced Plovers and 4 genomic hybrids) sampled in eastern Asia and Europe using ddRADSeq to harvest over 8000 genome-wide SNPs. In contrast to previous studies, our analyses revealed two well defined genomic clusters, with limited hybridization and a narrow contact zone. We also uncovered significant differences in bill length and further sex-specific differences in size, which may signal differences in mate choice between Kentish and White-faced Plovers. Our results support the hypothesis that this shorebird duo is on the verge of speciation.
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