Abstract:
:The population structure of the giant mottled eel, Anguilla marmorata, was investigated with mitochondrial and microsatellite DNA analyses using 449 specimens from 13 localities throughout the species range. Control region F-statistics indicated the North Pacific (Japan, Taiwan, Philippines, Sulawesi), South Pacific (Tahiti, Fiji, New Caledonia, Papua New Guinea), eastern Indian Ocean (Sumatra), western Indian Ocean (Réunion, Madagascar), Ambon, and Guam regions were significantly different (Phi(ST) = 0.131-0.698, P < 0.05) while only a few differences were observed between localities within the South Pacific. These regions were roughly clustered in the neighbour-joining tree, although Ambon individuals were mainly divided into North and South Pacific groups. Analysis with eight microsatellite loci showed almost identical results to those of the control region, except no genetic difference was observed between the western and eastern Indian Ocean (F(ST) = 0.009, P > 0.05). The Bayesian cluster analysis of the microsatellite data detected two genetic groups. One included four North Pacific localities, and the other included eight localities in the South Pacific, Indian Ocean, and Guam, but Ambon individuals were evenly assigned to these two groups. These results showed that A. marmorata has four genetically different populations (North Pacific, South Pacific, Indian Ocean, Guam region). The North Pacific population is fully panmictic whereas the South Pacific and Indian Ocean populations have a metapopulation structure. Interestingly, Guam was suggested to be inhabited by a reproductive population restricted to that region, and the individuals from the North and South Pacific populations co-exist in Ambon.
journal_name
Mol Ecoljournal_title
Molecular ecologyauthors
Minegishi Y,Aoyama J,Tsukamoto Kdoi
10.1111/j.1365-294X.2008.03822.xsubject
Has Abstractpub_date
2008-07-01 00:00:00pages
3109-22issue
13eissn
0962-1083issn
1365-294Xpii
MEC3822journal_volume
17pub_type
杂志文章abstract::Although resolving phylogenetic relationships and establishing species limits are primary goals of systematics, these tasks remain challenging at both conceptual and analytical levels. Here, we integrated genomic and phenotypic data and employed a comprehensive suite of coalescent-based analyses to develop and evaluat...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.14504
更新日期:2018-03-01 00:00:00
abstract::Natural hybridization accompanied by a shift in niche preference by hybrid genotypes can lead to hybrid speciation. Natural selection may cause the fixation of advantageous alleles in the ecologically diverged hybrids, and the loci experiencing selection should exhibit a reduction in allelic diversity relative to neut...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2007.03557.x
更新日期:2007-12-01 00:00:00
abstract::Lady's slipper orchids (Cypripedium spp.) are rare terrestrial plants that grow throughout the temperate Northern Hemisphere. Like all orchids, they require mycorrhizal fungi for germination and seedling nutrition. The nutritional relationships of adult Cypripedium mycorrhizae are unclear; however, Cypripedium distrib...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2005.02424.x
更新日期:2005-02-01 00:00:00
abstract::Species may often exhibit geographic variation in population genetic structure due to contemporary and historical variation in population size and gene flow. Here, we test the predictions that populations on the margins of a species' distribution contain less genetic variation and are more differentiated than populati...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2007.03241.x
更新日期:2007-04-01 00:00:00
abstract::Genomics and bioinformatics have great potential to help address numerous topics in ecology and evolution. Expressed sequence tags (ESTs) can bridge genomics and molecular ecology because they can provide a means of accessing the gene space of almost any organism. We review how ESTs have been used in molecular ecology...
journal_title:Molecular ecology
pub_type: 杂志文章,评审
doi:10.1111/j.1365-294X.2006.03195.x
更新日期:2007-03-01 00:00:00
abstract::Ocean warming will undoubtedly affect the migratory patterns of many marine species, but specific changes can be predicted only where behavioural mechanisms guiding migration are understood. Southern right whales show maternally inherited site fidelity to near-shore winter nursery grounds, but exactly where they feed ...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2008.04069.x
更新日期:2009-03-01 00:00:00
abstract::Genetic rescue is an increasingly considered conservation measure to address genetic erosion associated with habitat loss and fragmentation. The resulting gene flow from facilitating migration may improve fitness and adaptive potential, but is not without risks (e.g., outbreeding depression). Here, we conducted a test...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.14225
更新日期:2017-09-01 00:00:00
abstract::A common challenge in phylogenetic reconstruction is to find enough suitable genomic markers to reliably trace splitting events with short internodes. Here, we present phylogenetic analyses based on genomewide single-nucleotide polymorphisms (SNPs) of an enigmatic avian radiation, the subspecies complex of Afrocanaria...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.13008
更新日期:2015-01-01 00:00:00
abstract::A whole-genome duplication (WGD) doubles the entire genomic content of a species and is thought to have catalysed adaptive radiation in some polyploid-origin lineages. However, little is known about general consequences of a WGD because gene duplicates (i.e., paralogs) are commonly filtered in genomic studies; such fi...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.14201
更新日期:2017-09-01 00:00:00
abstract::Landscape genomics promises to provide novel insights into how neutral and adaptive processes shape genome-wide variation within and among populations. However, there has been little emphasis on examining whether individual-based phenotype-genotype relationships derived from approaches such as genome-wide association ...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.13473
更新日期:2016-01-01 00:00:00
abstract::Cichlid fish are well known for their high speciation rates, which are usually accompanied by spectacular and rapid diversification in eco-morphological and secondary sexual traits. This is best illustrated by the famous repeated explosive radiations in the African Great Lakes Tanganyika, Malawi and Victoria, each lak...
journal_title:Molecular ecology
pub_type: 评论,杂志文章
doi:10.1111/mec.13598
更新日期:2016-04-01 00:00:00
abstract::Plasmid pSI30 was constructed to increase the sensitivity of detection of a genetically engineered micro-organism (GEM) and its recombinant DNA in environmental samples. This broad host-range, mobilizable plasmid contained chlorocatechol (clc) degradative genes, antibiotic resistance genes (ampicillin and kanamycin) a...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294x.1992.tb00169.x
更新日期:1992-10-01 00:00:00
abstract::Comparisons among patterns exhibited by functionally distinct genetic markers have been widely used to infer the impacts of demography and selection in structuring genetic variation in natural populations. However, such multilocus comparisons remain an indirect evaluation of selection at particular candidate loci; ide...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2007.03323.x
更新日期:2007-06-01 00:00:00
abstract::Understanding the origin of new species is a central goal in evolutionary biology. Diverging lineages often evolve highly heterogeneous patterns of genetic differentiation; however, the underlying mechanisms are not well understood. We investigated evolutionary processes governing genetic differentiation between the h...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.15571
更新日期:2020-09-01 00:00:00
abstract::Aside from its selective role in filtering inter-individual variation during evolution by natural selection, the environment also plays an instructive role in producing variation during development. External environmental cues can influence developmental rates and/or trajectories and lead to the production of distinct...
journal_title:Molecular ecology
pub_type: 杂志文章,评审
doi:10.1111/j.1365-294X.2011.05016.x
更新日期:2011-04-01 00:00:00
abstract::Adaptation to new environments often occurs in the face of gene flow. Under these conditions, gene flow and recombination can impede adaptation by breaking down linkage disequilibrium between locally adapted alleles. Theory predicts that this decay can be halted or slowed if adaptive alleles are tightly linked in regi...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.14226
更新日期:2017-09-01 00:00:00
abstract::Understanding how phenotypic variation is generated and maintained, and the evolutionary forces that shape these processes is the main goal of evolutionary biology. Great progress has been made in uncovering the genetic basis of morphological diversity, yet little is known about both the genetics and developmental bas...
journal_title:Molecular ecology
pub_type: 评论,新闻
doi:10.1111/mec.14099
更新日期:2017-05-01 00:00:00
abstract::Human-altered environments can shape the evolution of organisms. Fungi are no exception, although little is known about how they withstand anthropogenic pollution. Here, we document adaptation in the mycorrhizal fungus Suillus luteus driven by soil heavy metal contamination. Genome scans across individuals from recent...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.15618
更新日期:2020-11-01 00:00:00
abstract::Diet strongly influences the intestinal microbial communities through species sorting. Alternatively, these communicates may differ because of chance variation in local microbial exposures or species losses among allopatric host populations (i.e. ecological drift). We investigated how these forces shape enteric commun...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2012.05502.x
更新日期:2012-04-01 00:00:00
abstract::One of the greatest threats to the long-term viability of migrating plant species is the loss of genetic diversity due to founder effects. Populations can expand as a response to climate change, but it is uncertain if long-lived plant species can maintain sufficient genetic diversity at the leading edge of migrating p...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2010.04972.x
更新日期:2011-02-01 00:00:00
abstract::In this study, we used a comparative genome scan to examine patterns of population differentiation with respect to host plant use in Hesperotettix viridis, a Nearctic oligophagous grasshopper locally specialized on various Asteraceae including Solidago, Gutierrezia, and Ericameria. We identified amplified fragment len...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2010.04792.x
更新日期:2010-09-01 00:00:00
abstract::We investigate population genetic structuring in Margaritifera falcata, a freshwater mussel native to western North America, across the majority of its geographical range. We find shallow rangewide genetic structure, strong population-level structuring and very low population diversity in this species, using both mito...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.12557
更新日期:2013-12-01 00:00:00
abstract::Isolation by adaptation increases divergence at neutral loci when natural selection against immigrants reduces the rate of gene flow between different habitats. This can occur early in the process of adaptive divergence and is a key feature of ecological speciation. Despite the ability of isolation by distance (IBD) a...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2012.05454.x
更新日期:2012-05-01 00:00:00
abstract::Niche partitioning through foraging is a mechanism likely involved in facilitating the coexistence of ecologically similar and co-occurring animal species by separating their use of resources. Yet, this mechanism is not well understood in flying insectivorous animals. This is particularly true of bats, where many ecol...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.14508
更新日期:2018-03-01 00:00:00
abstract::New technologies promise to revolutionize the field of molecular ecology. This technological progress comes with its own set of challenges. Among the most important ones is the analysis and interpretation of the data in a way that tells us about the molecular causes of the phenotype of interest and its consequences. I...
journal_title:Molecular ecology
pub_type: 评论,杂志文章
doi:10.1111/j.1365-294X.2010.04830.x
更新日期:2010-12-01 00:00:00
abstract::Between plagues, the solitarious desert locust (Schistocerca gregaria) is generally thought to exist as small populations, which are particularly prone to extinction events in arid regions of Africa and Asia. Given the high genetic structuring observed in one geographical area (the Eritrean coast) by former authors, a...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.12687
更新日期:2014-04-01 00:00:00
abstract::We present a new approach for defining groups of populations that are geographically homogeneous and maximally differentiated from each other. As a by-product, it also leads to the identification of genetic barriers between these groups. The method is based on a simulated annealing procedure that aims to maximize the ...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1046/j.1365-294x.2002.01650.x
更新日期:2002-12-01 00:00:00
abstract::Adaptive radiations provide unique opportunities to test whether and how recent ecological and evolutionary diversification of host species structures the composition of entire bacterial communities. We used 16S rRNA gene sequencing of faecal samples to test for differences in the gut microbiota of six species of Puer...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.13796
更新日期:2016-10-01 00:00:00
abstract::Asexual lineages are thought to be prone to extinction because of deleterious mutation accumulation (Muller's ratchet). Here, we analyse genomic effects of hybridity, polyploidy and allelic divergence in apomictic plants, and identify loci under divergent selection among sexual/apomictic lineages. RNAseq was used to s...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.12533
更新日期:2013-12-01 00:00:00
abstract::Robust assessments of taxonomic and functional diversity are essential components of research programmes aimed at understanding current biodiversity patterns and forecasting trajectories of ecological changes. Yet, evaluating marine biodiversity along its dimensions is challenging and dependent on the power and accura...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.15661
更新日期:2020-10-20 00:00:00