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5 results for “Periparus ater”
Asymmetric allelic introgression across a hybrid zone of the coal tit (Periparus ater) in the central Himalayas
<p>In the Himalayas, a number of secondary contact zones have been described for vicariant vertebrate taxa. However, analyses of genetic divergence and admixture are missing for most of these examples. In this study, we provide a population genetic analysis for the coal tit (<i>Periparus ater</i>) hybrid zone in Nepal. Intermediate phenotypes between the distinctive western 'spot-winged tit' (<i>P. a. melanolophus</i>) and e<span class="msoDel">E</span>astern Himalayan coal tits (<i>P. a. aemodius</i>) occur across a narrow range of less than 100 km in western Nepal. As a peculiarity, another distinctive cinnamon-bellied form is known from a single population so far. Genetic admixture of western and eastern mitochondrial lineages was restricted to the narrow zone of phenotypically intermediate populations. The cline width was estimated 46 km only with a center close to the population of the cinnamon-bellied phenotype. In contrast, allelic introgression of microsatellite loci was asymmetrical from eastern <i>P. a. aemodius</i> into far western populations of phenotypic <i>P. a. melanolophus</i> but not vice versa. Accordingly, the microsatellite cline was about 3.7 times wider than the mitochondrial one.</p>
Asymmetric allelic introgression across a hybrid zone of the coal tit (Periparus ater) in the central Himalayas
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Data from: Gene flow in the European coal tit, Periparus ater (Aves: Passeriformes): low among Mediterranean populations but high in a continental contact zone
Extant phylogeographic patterns of Palearctic terrestrial vertebrates are generally believed to have originated from glacial range fragmentation. Post-Pleistocene range expansions have led to the formation of secondary contact zones among genetically distinct taxa. For coal tits (Periparus ater), such a contact zone has been localized in Germany. In this study, we quantified gene flow between Fennoscandian and southern European coal tits using a set of 13 microsatellite loci. STRUCTURE analysis revealed four genetic clusters two of these on Mediterranean islands. German populations were genetically admixed but introgression of southern alleles was evident for Fennoscandian populations. In the South, we found negligible introgression of northern alleles (and haplotypes) but slight admixture of two southern genetic clusters in the Pyrenees and on the Balkan Peninsulae and near complete sorting of these two allelic lineages on the islands of Corsica and Sardinia. Genetic distinctiveness of the Mediterranean island populations reflects general patterns of endemism in the Corso-Sardinian fauna and the Cypriot fauna. Wide-range gene flow in Central Europe suggests a broad zone of intergradation between subspecies of the coal tit rather than a narrow contact zone. This is in accordance with low morphological and bioacoustic differentiation of European coal tit populations.
Data from: Gene flow in the European coal tit, Periparus ater (Aves: Passeriformes): low among Mediterranean populations but high in a continental contact zone
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Data from: Peripherally injected ghrelin and leptin reduce food hoarding and mass gain in the coal tit (Periparus ater)
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