Nesting habitat use and partitioning of three sympatric ninespine sticklebacks (genus Pungitius): implications for reproductive isolation

Tsuruta, Tetsuya; Machida, Yoshiyasu; Gotō, Akira

doi:10.1007/s10641-007-9267-9

Cited by 12 publications

(21 citation statements)

References 24 publications

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“…Second, introgression of mtDNA from P. pungitius into P. laevis might have occurred due to historical hybridization between them. Based on allozyme and mtDNA analyses, it has been shown that hybridization and mtDNA introgression often occur between different Pungitius species or different P. pungitius lineages in areas of sympatry in East Asia (Takahashi & Takata, ; Takahashi et al ., ; Tsuruta et al ., ). Given these two possible scenarios, further analyses of nuclear genomes are required to clarify the evolutionary process and mechanisms underlying the discrepant patterns of phenotypic and mtDNA divergence in the P. laevis lineage III.…”

Section: Discussionmentioning

confidence: 97%

Mitochondrial phylogeography and cryptic divergence in the stickleback genusPungitius

Wang

Shikano

Persat

et al. 2015

Journal of Biogeography

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Aim Stickleback fish exhibit considerable morphological variation within and between species, and similar armour phenotypes are often found in different taxonomic groups. Although several Pungitius species and subspecies have been recognized, their evolutionary history and relationships remain poorly known. We investigated the phylogenetic relationships and phenotypic divergence in this genus with a particular focus on P. pungitius and P. laevis.Location Northern Hemisphere.Methods Nucleotide variation was analysed in five mitochondrial regions (control region, cytochrome b, ATPase 6, 12S rRNA and 16S rRNA) covering a total of 3236 bp in 194 individuals from five recognized species (P. pungitius, P. laevis, P. platygaster, P. tymensis and P. kaibarae).Results Six highly divergent lineages were identified, including those corresponding to P. pungitius, P. platygaster, P. tymensis and P. kaibarae. However, P. laevis was found to be polyphyletic, consisting of three divergent lineages. Two of them were independent monophyletic groups, whereas the third one clustered together with P. pungitius. All of the P. laevis lineages, as well as one P. pungitius lineage, were found in the central and southern parts of France. Divergence within this genus was indicated to have begun about 4.4 Ma in the Pliocene epoch. All divergences in the Western Palaearctic were estimated to have occurred during the Pleistocene (≤ 2.6 Ma). No correspondence was found between the molecular phylogeny and the occurrence of distinct armour phenotypes within this genus. Main conclusionsThe results suggest that glacial events during the Pleistocene are likely to have strongly impacted the diversification of this genus in the Western Palaearctic, implying that the central and southern parts of France were important glacial refugia for the ancestral Pungitius fish. It also appears that similar armour phenotypes have evolved independently in different Pungitius lineages, questioning the utility of these traits as diagnostic taxonomic characters.

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Section: Discussionmentioning

confidence: 97%

Mitochondrial phylogeography and cryptic divergence in the stickleback genusPungitius

Wang

Shikano

Persat

et al. 2015

Journal of Biogeography

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“…All of the three major subclades have a geographical distribution in the Far East. An interesting ecological and physiological feature in the species of the sinensisclade is that while P. pungitius is found in both freshwater and marine habitats, sinensis species are known to inhabit only freshwater environments, possibly because of their low salinity tolerance (Ishikawa et al, 2013;Takahashi & Goto, 2001;Tanaka & Shinbo, 1985;Tsuruta, Machida, & Goto, 2008). Likewise, their current distributions are thought to be largely associated with past geographical changes in this area (Takahashi & Goto, 2001).…”

Section: Biogeography Of Pungitius Sticklebacksmentioning

confidence: 99%

A phylogenomic perspective on diversity, hybridization and evolutionary affinities in the stickleback genusPungitius

et al. 2019

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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 the prevalence and extent of introgression among recognized species, genomic data sets of both reference genome‐anchored single nucleotide polymorphisms and de novo assembled RAD‐tag loci were constructed with RAD‐seq data. Both data sets yielded topologically identical and well‐supported species trees. Incongruence between nuclear and mitochondrial DNA‐based trees was found and suggested possibly 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 regarding 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 biogeographical 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.

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“…In eastern Hokkaido, for example, the brackish water type, the freshwater type and P. tymensis often inhabit the downstream, midstream and upstream of a single river, respectively, but their distributions often overlap. In those areas, the frequencies of hybrids are low, and reproductive isolation is achieved through a combination of eco-geographical isolation, ecological selection against migrants and hybrid male sterility Tsuruta et al, 2008;Ishikawa et al, 2013). In several areas along Omono River in Akita prefecture, the Omono type and the freshwater type are sympatric, but strong assortative mating maintains a low frequency of hybridization (Tsuruta et al, 2002).…”

Section: Ninespine Stickleback Species Complexmentioning

confidence: 99%

Toward conservation of genetic and phenotypic diversity in Japanese sticklebacks

Kitano

Mori

2016

Genes Genet. Syst.

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Stickleback fishes have been established as a leading model system for studying the genetic mechanisms that underlie naturally occurring phenotypic diversification. Because of the tremendous diversification achieved by stickleback species in various environments, different geographical populations have unique phenotypes and genotypes, which provide us with unique opportunities for evolutionary genetic research. Among sticklebacks, Japanese species have several unique characteristics that have not been found in other populations. The sympatric marine threespine stickleback species Gasterosteus aculeatus and G. nipponicus (Japan Sea stickleback) are a good system for speciation research. Gasterosteus nipponicus also has several unique characteristics, such as neo-sex chromosomes and courtship behaviors, that differ from those of G. aculeatus. Several freshwater populations derived from G. aculeatus (Hariyo threespine stickleback) inhabit spring-fed ponds and streams in central Honshu and exhibit year-round reproduction, which has never been observed in other stickleback populations. Four species of ninespine stickleback, including Pungitius tymensis and the freshwater, brackish water and Omono types of the P. pungitius-P. sinensis complex, are also excellent model systems for speciation research. Anthropogenic alteration of environments, however, has exposed several Japanese stickleback populations to the risk of extinction and has actually led to extinction of several populations and species. Pungitius kaibarae, which is endemic to East Asia, used to inhabit Kyoto and Hyogo prefectures, but is now extinct. Causes of extinction include depletion of spring water, landfill of habitats, and construction of rivermouth weirs. Here, we review the importance of Japanese sticklebacks as genetic resources, the status of several endangered stickleback populations and species, and the factors putting these populations at risk.

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Nesting habitat use and partitioning of three sympatric ninespine sticklebacks (genus Pungitius): implications for reproductive isolation

Cited by 12 publications

References 24 publications

Mitochondrial phylogeography and cryptic divergence in the stickleback genusPungitius

Mitochondrial phylogeography and cryptic divergence in the stickleback genusPungitius

A phylogenomic perspective on diversity, hybridization and evolutionary affinities in the stickleback genusPungitius

Toward conservation of genetic and phenotypic diversity in Japanese sticklebacks

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