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23 results for “Pungitius pungitius”
Data from: A phylogenomic perspective to diversity, hybridization and evolutionary affinities in the stickleback genus Pungitius
<p>Hybridization and convergent evolution are phenomena of broad interest in evolutionary biology, but their occurrence poses challenges for reconstructing evolutionary affinities among affected taxa. Sticklebacks in the genus Pungitius are a case in point: evolutionary relationships and taxonomic validity of different species and populations in this circumpolarly distributed species complex remain contentious due to convergent evolution of traits regarded as diagnostic in their taxonomy, and possibly also due to frequent hybridization among taxa. To clarify the evolutionary relationships among different Pungitius species and populations globally, as well as to study prevalence and extent of introgression among recognized species, genomic datasets of both reference genome-anchored SNPs and de novo assembled RAD-tag loci were constructed with RAD-seq data. Both datasets yielded topologically identical and well-supported species trees. Incongruence between nuclear and mitochondrial DNA-based trees was found and suggested frequent hybridization and mitogenome capture during the evolution of Pungitius sticklebacks. Further analyses revealed evidence for frequent nuclear genetic introgression among Pungitius species, although the estimated proportions of autosomal introgression were low. Apart from providing evidence for frequent hybridization, the results challenge earlier mitochondrial and morphology-based hypotheses about the number of species and their affinities in this genus: at least seven extant species can be recognized on the basis of genetic data. The results also shed new light on the biogeographic history of the Pungitius-complex, including suggestion of several trans-Arctic invasions of Europe from the Northern Pacific. The well-resolved phylogeny should facilitate the utility of this genus as a model system for future comparative evolutionary studies.</p>
Data from: A phylogenomic perspective to diversity, hybridization and evolutionary affinities in the stickleback genus Pungitius
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North Temperate Lakes site, station Sparkling Lake, study of animal abundance of Pungitius pungitius in units of numberPerEffort on a yearly timescale
The EcoTrends project was established in 2004 by Dr. Debra Peters (Jornada Basin LTER, USDA-ARS Jornada Experimental Range) and Dr. Ariel Lugo (Luquillo LTER, USDA-FS Luquillo Experimental Forest) to support the collection and analysis of long-term ecological datasets. The project is a large synthesis effort focused on improving the accessibility and use of long-term data. At present, there are ~50 state and federally funded research sites that are participating and contributing to the EcoTrends project, including all 26 Long-Term Ecological Research (LTER) sites and sites funded by the USDA Agriculture Research Service (ARS), USDA Forest Service, US Department of Energy, US Geological Survey (USGS) and numerous universities. Data from the EcoTrends project are available through an exploratory web portal (http://www.ecotrends.info). This web portal enables the continuation of data compilation and accessibility by users through an interactive web application. Ongoing data compilation is updated through both manual and automatic processing as part of the LTER Provenance Aware Synthesis Tracking Architecture (PASTA). The web portal is a collaboration between the Jornada LTER and the LTER Network Office. The following dataset from North Temperate Lakes (NTL) contains animal abundance of Pungitius pungitius measurements in numberPerEffort units and were aggregated to a yearly timescale.
Genome-wide patterns of divergence and introgression after secondary contact between Pungitius sticklebacks
<p>Speciation is a continuous process. Although it is known that differential adaptation can initiate divergence even in the face of gene flow, we know relatively little about the mechanisms driving complete reproductive isolation and the genomic patterns of divergence and introgression at the later stages of speciation. Sticklebacks contain many pairs of sympatric species differing in levels of reproductive isolation and divergence history. Nevertheless, most previous studies have focused on young species pairs. Here, we investigated two sympatric stickleback species, <i>Pungitius pungitius </i>and <i>P. sinensis</i>, whose habitats overlap in eastern Hokkaido; these species show hybrid male sterility, suggesting that they may be at a late stage of speciation. Our demographic analysis using whole genome sequence data showed that these species split 1.73 million years ago and came into secondary contact 37,200 years ago after a period of allopatry. This long period of allopatry might have promoted the evolution of intrinsic incompatibility. Although we detected on-going gene flow and signatures of introgression, overall genomic divergence was high, with considerable heterogeneity across the genome. The heterogeneity was significantly associated with variation in recombination rate. This sympatric pair provides new avenues to investigate the late stages of the stickleback speciation continuum.</p>
FIGURE 12 in A new species of nine-spined stickleback, Pungitius modestus (Gasterosteiformes, Gasterosteidae), from northern Honshu, Japan
FIGURE 12. Comparisons of the origin of the spiny dorsal fin in Pungitius modestus and P. kaibarae. a) Pungitius modestus, sp. nov., holotype, NSMT-P 133674, 45.4 mm SL. b) P. kaibarae, holotype, ZUMT 8197, 45.0 mm SL. c) P. kaibarae from Korea, non-type, NSMT-P 140556, 31.8 mm SL. The first dorsal-fin spine is shown by a red arrow, and the origin of the pectoral-fin base is shown by a red vertical line.
FIGURE 9. a in A new species of nine-spined stickleback, Pungitius modestus (Gasterosteiformes, Gasterosteidae), from northern Honshu, Japan
FIGURE 9. a) Syntype of Gasterosteus tymensis Nikolski, 1889, BMNH 1892.4.28, 58.5 mm SL. b) X-ray photograph of syntype of G. tymensis.
FIGURE 5. a in A new species of nine-spined stickleback, Pungitius modestus (Gasterosteiformes, Gasterosteidae), from northern Honshu, Japan
FIGURE 5. a) Syntypes of Gasterosteus platygaster Kessler, 1859, BMNH 1897.7.5.2, 44.4 mm SL. b) X-ray photograph of syntypes of G. platygaster, 44.4 mm SL. c) Syntypes of G. platygaster Kessler, 1859, BMNH 1897.7.5.2, 39.3 mm SL. d) X-ray photograph of syntypes of G. platygaster, 39.3 mm SL.
FIGURE 4. a in A new species of nine-spined stickleback, Pungitius modestus (Gasterosteiformes, Gasterosteidae), from northern Honshu, Japan
FIGURE 4. a) Living female Pungitius modestus, sp. nov. out of the breeding season. NSMT-P 136597, 41.3 mm SL, Tendo, Yamagata Prefecture, Honshu, Japan. b) Living male in the breeding season (photographed by T. Takeda, May 1992). c) Living female in the breeding season (photographed by T. Takeda, May 1992).
FIGURE 11 in A new species of nine-spined stickleback, Pungitius modestus (Gasterosteiformes, Gasterosteidae), from northern Honshu, Japan
FIGURE 11. Comparisons of lateral plates of Pungitius modestus and P. kaibarae. a) Pungitius modestus, sp. nov., paratype, NSMT-P 140554, 40.5 mm SL. b) P. kaibarae, holotype, ZUMT 8197, 45.0 mm SL. c) P. kaibarae from Korea, non-type, NSMT-P 140556, 31.8 mm SL. Edges of the lateral plates are shown in red.
FIGURE 8. a in A new species of nine-spined stickleback, Pungitius modestus (Gasterosteiformes, Gasterosteidae), from northern Honshu, Japan
FIGURE 8. a) Syntypes of Gasterosteus bussei Warpachowski, 1888, ZIN 7100, 42–53 mm SL. b) X-ray photograph of syntypes of G. bussei.
FIGURE 2. a in A new species of nine-spined stickleback, Pungitius modestus (Gasterosteiformes, Gasterosteidae), from northern Honshu, Japan
FIGURE 2. a) Freshly dead holotype of Pungitius modestus, sp. nov., NSMT-P 133674, female, 45,4 mm SL, Tendo, Yamagata Prefecture, Honshu, Japan. b) Holotype preserved in 70% ethanol.
FIGURE 3 in A new species of nine-spined stickleback, Pungitius modestus (Gasterosteiformes, Gasterosteidae), from northern Honshu, Japan
FIGURE 3. Pectoral and pelvic girdles of Pungitius modestus, sp. nov., paratype, NSMT-P 140554, male, 38.7 mm SL, Higashine, Yamagata Prefecture, Honshu, Japan. a) Lateral view. b) Ventral view.
FIGURE 10. a in A new species of nine-spined stickleback, Pungitius modestus (Gasterosteiformes, Gasterosteidae), from northern Honshu, Japan
FIGURE 10. a) Holotype of Pygosteus kaibarae Tanaka, 1915, ZUMT 8197, 45.0 mm SL (photographed by K. Hosoya). b) Pungitius kaibarae from Korea, NSMT-P 140556, 31.8 mm SL, Gangneung, Gangwon-do, Korea.
Data from: A test for within-lake niche differentiation in the nine-spined sticklebacks (Pungitius pungitius)
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Genome-wide patterns of divergence and introgression after secondary contact between Pungitius sticklebacks
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Data from: Geographic variation in age structure and longevity in the nine-spined stickleback (Pungitius pungitius)
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Data from: Quantitative trait loci for growth and body size in the nine-spined stickleback Pungitius pungitius L.
Body size is an ecologically important trait shown to be genetically variable both within and among different animal populations as revealed by quantitative genetic studies. However, few studies have looked into underlying genetic architecture of body size variability in the wild using genetic mapping methods. With the aid of quantitative trait loci (QTL) analyses based on 226 microsatellite markers, we mapped body size and growth rate traits in the nine-spined stickleback (Pungitius pungitius) using an F2-intercross (n = 283 offspring) between size divergent populations. In total, 15 QTL locations were detected. The proportion of phenotypic variation explained by individual body size-related QTL ranged from 3% to 9%, and those related to growth parameters and increments from 3% to 7%. Several of the detected QTL affected either early or late growth. These results provide a solid starting point for more in depth investigations of structure and function of genomic regions involved in determination of body size in this popular model of ecological and evolutionary research.
FIGURE 7 in A new species of nine-spined stickleback, Pungitius modestus (Gasterosteiformes, Gasterosteidae), from northern Honshu, Japan
FIGURE 7. Syntypes of Gasterosteus stenurus Kessler, 1876, ZIN 2471, 46–55 mm SL.
FIGURE 6 in A new species of nine-spined stickleback, Pungitius modestus (Gasterosteiformes, Gasterosteidae), from northern Honshu, Japan
FIGURE 6. Syntypes of Gasterosteus sinensis Guichenot, 1869, MNHN 0000-5228, 21–26 mm SL.
FIGURE 1 in A new species of nine-spined stickleback, Pungitius modestus (Gasterosteiformes, Gasterosteidae), from northern Honshu, Japan
FIGURE 1. Map showing the type locality (solid circle) of Pungitius modestus, sp. nov.
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